./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/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_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/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_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/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 942b28ff7c0583b7db8395d2c315e70afc8fe68ba69d39faf867ac75d7628edb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:07:01,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:07:01,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:07:01,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:07:01,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:07:01,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:07:01,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:07:01,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:07:01,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:07:01,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:07:01,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:07:01,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:07:01,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:07:01,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:07:01,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:07:01,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:07:01,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:07:01,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:07:01,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:07:01,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:07:01,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:07:01,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:07:01,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:07:01,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:07:01,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:07:01,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:07:01,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:07:01,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:07:01,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:07:01,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:07:01,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:07:01,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:07:01,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:07:01,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:07:01,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:07:01,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:07:01,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:07:01,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:07:01,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:07:01,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:07:01,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:07:01,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:07:01,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:07:01,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:07:01,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:07:01,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:07:01,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:07:01,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:07:01,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:07:01,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:07:01,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:07:01,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:07:01,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:07:01,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:07:01,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:07:01,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:07:01,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:07:01,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:07:01,606 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:07:01,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:07:01,607 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:07:01,607 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:07:01,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:07:01,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:07:01,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:07:01,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:07:01,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:07:01,609 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:07:01,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:07:01,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:07:01,609 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_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 942b28ff7c0583b7db8395d2c315e70afc8fe68ba69d39faf867ac75d7628edb [2021-11-23 01:07:01,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:07:01,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:07:01,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:07:01,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:07:01,877 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:07:01,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound2.c [2021-11-23 01:07:01,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/data/46143f65d/7b246d9956ca4d918589cbb248a5bd40/FLAG88a43e0e6 [2021-11-23 01:07:02,322 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:07:02,323 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound2.c [2021-11-23 01:07:02,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/data/46143f65d/7b246d9956ca4d918589cbb248a5bd40/FLAG88a43e0e6 [2021-11-23 01:07:02,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/data/46143f65d/7b246d9956ca4d918589cbb248a5bd40 [2021-11-23 01:07:02,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:07:02,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:07:02,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:07:02,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:07:02,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:07:02,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:02" (1/1) ... [2021-11-23 01:07:02,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447821c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:02, skipping insertion in model container [2021-11-23 01:07:02,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:02" (1/1) ... [2021-11-23 01:07:02,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:07:02,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:07:02,955 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_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound2.c[588,601] [2021-11-23 01:07:02,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:07:03,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:07:03,014 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_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound2.c[588,601] [2021-11-23 01:07:03,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:07:03,037 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:07:03,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03 WrapperNode [2021-11-23 01:07:03,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:07:03,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:07:03,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:07:03,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:07:03,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,088 INFO L137 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-23 01:07:03,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:07:03,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:07:03,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:07:03,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:07:03,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:07:03,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:07:03,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:07:03,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:07:03,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:07:03,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:07:03,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:07:03,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:07:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:07:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:07:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:07:03,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:07:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:07:03,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:07:03,282 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:07:03,284 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:07:03,456 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:07:03,479 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:07:03,480 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:07:03,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:03 BoogieIcfgContainer [2021-11-23 01:07:03,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:07:03,483 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:07:03,483 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:07:03,496 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:07:03,496 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:03" (1/1) ... [2021-11-23 01:07:03,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:07:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:03,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-23 01:07:03,608 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-23 01:07:03,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:07:03,613 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:03,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:03,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:07:03,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:03,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 46 transitions. [2021-11-23 01:07:03,949 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 46 transitions. [2021-11-23 01:07:03,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:07:03,950 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:03,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:03,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:07:04,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:07:04,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 29 states and 52 transitions. [2021-11-23 01:07:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2021-11-23 01:07:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:07:04,386 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:04,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:04,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:07:04,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:04,571 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:07:04,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:04,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 33 states and 61 transitions. [2021-11-23 01:07:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2021-11-23 01:07:04,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:07:04,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:04,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:04,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:07:04,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:07:05,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:05,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 35 states and 66 transitions. [2021-11-23 01:07:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 66 transitions. [2021-11-23 01:07:05,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:07:05,235 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:05,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:05,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:07:05,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:07:05,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:05,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 36 states and 69 transitions. [2021-11-23 01:07:05,491 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2021-11-23 01:07:05,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:07:05,493 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:05,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:05,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:07:05,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 01:07:06,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:06,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 66 transitions. [2021-11-23 01:07:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2021-11-23 01:07:06,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:07:06,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:06,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:06,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:07:06,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-23 01:07:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 44 states and 81 transitions. [2021-11-23 01:07:07,048 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 81 transitions. [2021-11-23 01:07:07,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:07:07,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:07,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:07,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:07:07,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:07:07,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:07,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 88 transitions. [2021-11-23 01:07:07,746 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 88 transitions. [2021-11-23 01:07:07,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 01:07:07,747 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:07,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:07,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:07:07,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 01:07:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 52 states and 96 transitions. [2021-11-23 01:07:08,506 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2021-11-23 01:07:08,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:07:08,507 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:08,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:08,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:07:08,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:08,879 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 01:07:09,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:09,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 53 states and 98 transitions. [2021-11-23 01:07:09,320 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 98 transitions. [2021-11-23 01:07:09,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 01:07:09,321 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:09,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:09,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:07:09,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:07:09,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:09,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 54 states and 101 transitions. [2021-11-23 01:07:09,755 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 101 transitions. [2021-11-23 01:07:09,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 01:07:09,757 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:09,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:09,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:07:09,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 39 proven. 13 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-23 01:07:10,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:10,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 54 states and 100 transitions. [2021-11-23 01:07:10,168 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2021-11-23 01:07:10,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 01:07:10,170 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:10,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:10,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 01:07:10,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:10,681 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:07:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 01:07:11,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 57 states and 106 transitions. [2021-11-23 01:07:11,789 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 106 transitions. [2021-11-23 01:07:11,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 01:07:11,790 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:11,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:11,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:07:11,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 01:07:12,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 60 states and 112 transitions. [2021-11-23 01:07:12,765 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 112 transitions. [2021-11-23 01:07:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:07:12,766 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:12,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:12,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 01:07:12,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 01:07:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:13,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 61 states and 115 transitions. [2021-11-23 01:07:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 115 transitions. [2021-11-23 01:07:13,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 01:07:13,948 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:13,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:13,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:07:13,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 01:07:15,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:15,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 65 states and 122 transitions. [2021-11-23 01:07:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 122 transitions. [2021-11-23 01:07:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 01:07:15,219 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:15,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:15,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:07:15,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 01:07:16,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:16,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 67 states and 127 transitions. [2021-11-23 01:07:16,531 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 127 transitions. [2021-11-23 01:07:16,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 01:07:16,532 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:16,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:16,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:07:16,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 26 proven. 17 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 01:07:17,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 68 states and 129 transitions. [2021-11-23 01:07:17,640 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 129 transitions. [2021-11-23 01:07:17,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 01:07:17,642 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:17,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:17,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:07:17,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 55 proven. 13 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2021-11-23 01:07:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 70 states and 132 transitions. [2021-11-23 01:07:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 132 transitions. [2021-11-23 01:07:18,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 01:07:18,629 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:18,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:18,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:07:18,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-23 01:07:19,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:19,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 71 states and 135 transitions. [2021-11-23 01:07:19,425 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 135 transitions. [2021-11-23 01:07:19,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 01:07:19,426 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:19,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:19,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:07:19,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 55 proven. 19 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-11-23 01:07:20,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 73 states and 138 transitions. [2021-11-23 01:07:20,742 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 138 transitions. [2021-11-23 01:07:20,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-23 01:07:20,743 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:20,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:20,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:07:20,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:20,946 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 69 proven. 13 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-23 01:07:21,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:21,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 73 states and 137 transitions. [2021-11-23 01:07:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 137 transitions. [2021-11-23 01:07:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-23 01:07:21,279 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:21,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:21,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 01:07:21,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-23 01:07:23,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:23,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 76 states and 143 transitions. [2021-11-23 01:07:23,495 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 143 transitions. [2021-11-23 01:07:23,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 01:07:23,496 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:23,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:23,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:07:23,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:24,095 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 32 proven. 30 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-23 01:07:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:24,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 79 states and 149 transitions. [2021-11-23 01:07:24,863 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 149 transitions. [2021-11-23 01:07:24,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 01:07:24,865 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:24,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:24,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:07:24,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-23 01:07:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:26,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 80 states and 152 transitions. [2021-11-23 01:07:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 152 transitions. [2021-11-23 01:07:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-23 01:07:26,845 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:26,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:26,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 01:07:26,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:27,591 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 34 proven. 33 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-23 01:07:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:28,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 84 states and 159 transitions. [2021-11-23 01:07:28,668 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 159 transitions. [2021-11-23 01:07:28,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 01:07:28,669 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:28,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:28,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:07:28,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:29,305 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-23 01:07:30,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:30,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 86 states and 163 transitions. [2021-11-23 01:07:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 163 transitions. [2021-11-23 01:07:30,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-23 01:07:30,607 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:30,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:30,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:07:30,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-23 01:07:32,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 87 states and 165 transitions. [2021-11-23 01:07:32,518 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 165 transitions. [2021-11-23 01:07:32,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-23 01:07:32,519 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:32,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:32,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:07:32,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 38 proven. 39 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-23 01:07:33,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:33,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 88 states and 168 transitions. [2021-11-23 01:07:33,459 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 168 transitions. [2021-11-23 01:07:33,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-23 01:07:33,460 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:33,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:33,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:07:33,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:33,700 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 99 proven. 13 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2021-11-23 01:07:34,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:34,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 88 states and 167 transitions. [2021-11-23 01:07:34,128 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 167 transitions. [2021-11-23 01:07:34,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-23 01:07:34,129 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:34,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:34,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:07:34,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:34,972 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 42 proven. 42 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-23 01:07:37,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:37,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 91 states and 173 transitions. [2021-11-23 01:07:37,461 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 173 transitions. [2021-11-23 01:07:37,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-23 01:07:37,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:37,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:37,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 01:07:37,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:38,122 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-11-23 01:07:40,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:40,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 57 states and 97 transitions. [2021-11-23 01:07:40,303 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 97 transitions. [2021-11-23 01:07:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 01:07:40,304 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:40,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:40,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:07:40,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 44 proven. 42 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-23 01:07:43,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:43,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 56 states and 93 transitions. [2021-11-23 01:07:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 93 transitions. [2021-11-23 01:07:43,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 01:07:43,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:07:43,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:07:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:07:43,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:07:43,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:07:44,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 46 proven. 42 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-23 01:07:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:07:46,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 49 states and 83 transitions. [2021-11-23 01:07:46,189 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 83 transitions. [2021-11-23 01:07:46,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:07:46,190 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 35 iterations. [2021-11-23 01:07:46,198 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:07:47,666 INFO L560 CodeCheckObserver]: Invariant with dag size 57 [2021-11-23 01:07:47,677 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:07:47,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:07:47 ImpRootNode [2021-11-23 01:07:47,678 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:07:47,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:07:47,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:07:47,679 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:07:47,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:03" (3/4) ... [2021-11-23 01:07:47,681 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:07:47,686 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 01:07:47,690 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-23 01:07:47,690 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:07:47,691 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:07:47,691 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:07:47,737 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:07:47,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:07:47,738 INFO L158 Benchmark]: Toolchain (without parser) took 45001.15ms. Allocated memory was 88.1MB in the beginning and 337.6MB in the end (delta: 249.6MB). Free memory was 54.4MB in the beginning and 133.5MB in the end (delta: -79.2MB). Peak memory consumption was 169.9MB. Max. memory is 16.1GB. [2021-11-23 01:07:47,739 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:07:47,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.65ms. Allocated memory is still 88.1MB. Free memory was 54.1MB in the beginning and 64.1MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:07:47,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.58ms. Allocated memory is still 88.1MB. Free memory was 64.1MB in the beginning and 62.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:07:47,741 INFO L158 Benchmark]: Boogie Preprocessor took 44.81ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 61.6MB in the end (delta: 747.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:07:47,742 INFO L158 Benchmark]: RCFGBuilder took 341.94ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 50.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:07:47,742 INFO L158 Benchmark]: CodeCheck took 44194.94ms. Allocated memory was 88.1MB in the beginning and 337.6MB in the end (delta: 249.6MB). Free memory was 50.7MB in the beginning and 136.7MB in the end (delta: -86.0MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. [2021-11-23 01:07:47,743 INFO L158 Benchmark]: Witness Printer took 58.94ms. Allocated memory is still 337.6MB. Free memory was 136.7MB in the beginning and 133.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:07:47,747 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.7s, OverallIterations: 35, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5716 SdHoareTripleChecker+Valid, 42.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 884 mSDsluCounter, 2241 SdHoareTripleChecker+Invalid, 37.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1138 mSDsCounter, 7092 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17912 IncrementalHoareTripleChecker+Invalid, 25004 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7092 mSolverCounterUnsat, 1103 mSDtfsCounter, 17912 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19341 GetRequests, 18472 SyntacticMatches, 507 SemanticMatches, 362 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82590 ImplicationChecksByTransitivity, 28.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 2423 NumberOfCodeBlocks, 2423 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 2389 ConstructedInterpolants, 0 QuantifiedInterpolants, 10798 SizeOfPredicates, 53 NumberOfNonLiveVariables, 5977 ConjunctsInSsa, 556 ConjunctsInUnsatCore, 34 InterpolantComputations, 7 PerfectInterpolantSequences, 13104/13618 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: 17]: 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: 33]: Loop Invariant Derived loop invariant: ((((!(z < 7 + 6 * n && 6 + 6 * n <= z) || (!(x == 1) && y < 8)) || ((!((37 <= y && y < 38) && 3 == n) && !((n == 1 && y < 8) && 7 <= y)) && !((2 == n && 19 <= y) && y < 20))) || ((19 <= y && y < 20) && !(8 <= x && x < 9))) || (3 == n && !(x < 28 && 27 <= x))) || n <= a + 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.65ms. Allocated memory is still 88.1MB. Free memory was 54.1MB in the beginning and 64.1MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.58ms. Allocated memory is still 88.1MB. Free memory was 64.1MB in the beginning and 62.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.81ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 61.6MB in the end (delta: 747.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 341.94ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 50.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 44194.94ms. Allocated memory was 88.1MB in the beginning and 337.6MB in the end (delta: 249.6MB). Free memory was 50.7MB in the beginning and 136.7MB in the end (delta: -86.0MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. * Witness Printer took 58.94ms. Allocated memory is still 337.6MB. Free memory was 136.7MB in the beginning and 133.5MB 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! [2021-11-23 01:07:47,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a73ca3d-6e7e-4138-ae49-35f4b47f9d57/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE