./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/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_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/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_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/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 d629f4eefc4b49512b7b1b628f28a13dcdca90b36cb521919e0cc9ad875c2764 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:42:22,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:42:22,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:42:22,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:42:22,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:42:22,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:42:22,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:42:22,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:42:22,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:42:22,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:42:22,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:42:22,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:42:22,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:42:22,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:42:22,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:42:22,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:42:22,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:42:22,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:42:22,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:42:22,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:42:22,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:42:22,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:42:22,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:42:22,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:42:22,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:42:22,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:42:22,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:42:22,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:42:22,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:42:22,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:42:22,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:42:22,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:42:22,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:42:22,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:42:22,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:42:22,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:42:22,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:42:22,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:42:22,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:42:22,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:42:22,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:42:22,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:42:22,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:42:22,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:42:22,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:42:22,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:42:22,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:42:22,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:42:22,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:42:22,649 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:42:22,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:42:22,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:42:22,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:42:22,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:42:22,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:42:22,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:42:22,658 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:42:22,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:42:22,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:42:22,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:42:22,659 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:42:22,659 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:42:22,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:42:22,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:42:22,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:42:22,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:42:22,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:42:22,661 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:42:22,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:42:22,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:42:22,661 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_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d629f4eefc4b49512b7b1b628f28a13dcdca90b36cb521919e0cc9ad875c2764 [2021-11-23 00:42:22,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:42:23,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:42:23,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:42:23,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:42:23,007 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:42:23,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound5.c [2021-11-23 00:42:23,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/data/4d28543d4/a1fa51a253b34c0fab48a469e438dff0/FLAG49b90fe9b [2021-11-23 00:42:23,663 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:42:23,664 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound5.c [2021-11-23 00:42:23,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/data/4d28543d4/a1fa51a253b34c0fab48a469e438dff0/FLAG49b90fe9b [2021-11-23 00:42:24,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/data/4d28543d4/a1fa51a253b34c0fab48a469e438dff0 [2021-11-23 00:42:24,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:42:24,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:42:24,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:42:24,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:42:24,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:42:24,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbbf123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24, skipping insertion in model container [2021-11-23 00:42:24,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:42:24,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:42:24,240 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_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound5.c[458,471] [2021-11-23 00:42:24,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:42:24,264 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:42:24,276 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_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound5.c[458,471] [2021-11-23 00:42:24,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:42:24,295 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:42:24,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24 WrapperNode [2021-11-23 00:42:24,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:42:24,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:42:24,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:42:24,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:42:24,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,330 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2021-11-23 00:42:24,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:42:24,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:42:24,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:42:24,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:42:24,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:42:24,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:42:24,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:42:24,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:42:24,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:42:24,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:42:24,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:42:24,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:42:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:42:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:42:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:42:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:42:24,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:42:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:42:24,525 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:42:24,527 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:42:24,656 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:42:24,669 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:42:24,669 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:42:24,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:42:24 BoogieIcfgContainer [2021-11-23 00:42:24,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:42:24,673 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:42:24,673 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:42:24,683 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:42:24,684 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:42:24" (1/1) ... [2021-11-23 00:42:24,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:42:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:24,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2021-11-23 00:42:24,751 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2021-11-23 00:42:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:42:24,756 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:24,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:24,874 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 00:42:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2021-11-23 00:42:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-11-23 00:42:24,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:42:24,893 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:24,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:24,950 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 00:42:25,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2021-11-23 00:42:25,021 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-11-23 00:42:25,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:42:25,022 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:25,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:25,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:42:25,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:25,225 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 00:42:25,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:25,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2021-11-23 00:42:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2021-11-23 00:42:25,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:42:25,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:25,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:25,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:42:25,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:26,061 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 00:42:26,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2021-11-23 00:42:26,154 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2021-11-23 00:42:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:42:26,155 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:26,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:26,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:42:26,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:26,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:27,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 32 states and 62 transitions. [2021-11-23 00:42:27,013 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 62 transitions. [2021-11-23 00:42:27,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:42:27,015 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:27,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:27,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:42:27,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 36 states and 73 transitions. [2021-11-23 00:42:27,776 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 73 transitions. [2021-11-23 00:42:27,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:42:27,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:27,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:27,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:42:27,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:28,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:28,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 38 states and 74 transitions. [2021-11-23 00:42:28,245 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 74 transitions. [2021-11-23 00:42:28,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 00:42:28,246 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:28,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:28,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:42:28,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 00:42:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 42 states and 89 transitions. [2021-11-23 00:42:29,273 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2021-11-23 00:42:29,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:42:29,274 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:29,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:29,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:42:29,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:42:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 51 states and 122 transitions. [2021-11-23 00:42:31,332 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 122 transitions. [2021-11-23 00:42:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:42:31,335 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:31,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:31,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:42:31,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:42:31,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:31,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 53 states and 124 transitions. [2021-11-23 00:42:31,973 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 124 transitions. [2021-11-23 00:42:31,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:42:31,976 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:31,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:32,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 00:42:32,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:32,197 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:42:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 57 states and 137 transitions. [2021-11-23 00:42:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 137 transitions. [2021-11-23 00:42:33,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:42:33,271 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:33,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:33,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:42:33,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:33,488 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:34,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 61 states and 155 transitions. [2021-11-23 00:42:34,305 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 155 transitions. [2021-11-23 00:42:34,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:42:34,307 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:34,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:34,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 00:42:34,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:42:35,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:35,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 63 states and 157 transitions. [2021-11-23 00:42:35,065 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 157 transitions. [2021-11-23 00:42:35,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:42:35,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:35,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:35,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 00:42:35,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:42:35,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:35,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 65 states and 159 transitions. [2021-11-23 00:42:35,899 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 159 transitions. [2021-11-23 00:42:35,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:42:35,900 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:35,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:35,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:42:35,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:36,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 69 states and 185 transitions. [2021-11-23 00:42:36,869 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 185 transitions. [2021-11-23 00:42:36,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 00:42:36,870 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:36,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:36,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:42:36,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:36,984 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 00:42:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:38,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 72 states and 195 transitions. [2021-11-23 00:42:38,010 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 195 transitions. [2021-11-23 00:42:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 00:42:38,012 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:38,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:38,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 00:42:38,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:38,469 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:42:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 81 states and 238 transitions. [2021-11-23 00:42:41,661 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 238 transitions. [2021-11-23 00:42:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 00:42:41,663 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:41,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:41,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 00:42:41,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:42:43,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 85 states and 241 transitions. [2021-11-23 00:42:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 241 transitions. [2021-11-23 00:42:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 00:42:43,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:43,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:43,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 00:42:43,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:42:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:43,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 87 states and 243 transitions. [2021-11-23 00:42:43,953 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 243 transitions. [2021-11-23 00:42:43,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:42:43,955 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:43,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:43,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 00:42:43,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:42:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:45,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 91 states and 260 transitions. [2021-11-23 00:42:45,949 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 260 transitions. [2021-11-23 00:42:45,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:42:45,954 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:45,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:45,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:42:45,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:46,251 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:47,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:47,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 95 states and 285 transitions. [2021-11-23 00:42:47,480 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 285 transitions. [2021-11-23 00:42:47,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:42:47,481 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:47,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:47,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 00:42:47,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:47,870 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:42:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 97 states and 287 transitions. [2021-11-23 00:42:48,683 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 287 transitions. [2021-11-23 00:42:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:42:48,685 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:48,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:48,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 00:42:48,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:42:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 99 states and 289 transitions. [2021-11-23 00:42:49,958 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 289 transitions. [2021-11-23 00:42:49,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:42:49,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:49,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:49,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:42:49,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:51,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 103 states and 324 transitions. [2021-11-23 00:42:51,369 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 324 transitions. [2021-11-23 00:42:51,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:42:51,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:51,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:51,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 00:42:51,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:51,522 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:42:52,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:52,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 105 states and 326 transitions. [2021-11-23 00:42:52,604 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 326 transitions. [2021-11-23 00:42:52,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:42:52,606 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:52,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:52,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:42:52,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:53,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:53,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 105 states and 325 transitions. [2021-11-23 00:42:53,110 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 325 transitions. [2021-11-23 00:42:53,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 00:42:53,111 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:53,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:53,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:42:53,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:53,240 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 00:42:53,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:53,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 106 states and 331 transitions. [2021-11-23 00:42:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 331 transitions. [2021-11-23 00:42:53,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 00:42:53,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:53,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:53,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:42:53,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:54,301 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:42:58,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 115 states and 386 transitions. [2021-11-23 00:42:58,313 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 386 transitions. [2021-11-23 00:42:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 00:42:58,315 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:58,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:58,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:42:58,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:58,493 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:42:59,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 117 states and 388 transitions. [2021-11-23 00:42:59,415 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 388 transitions. [2021-11-23 00:42:59,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 00:42:59,417 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:59,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:59,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:42:59,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:42:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:43:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 119 states and 390 transitions. [2021-11-23 00:43:00,542 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 390 transitions. [2021-11-23 00:43:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 00:43:00,544 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:00,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:00,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:43:00,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:43:01,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:01,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 121 states and 392 transitions. [2021-11-23 00:43:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 392 transitions. [2021-11-23 00:43:01,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 00:43:01,706 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:01,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:01,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:43:01,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:01,894 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:43:02,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:02,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 123 states and 393 transitions. [2021-11-23 00:43:02,868 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 393 transitions. [2021-11-23 00:43:02,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 00:43:02,869 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:02,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:02,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:43:02,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:43:03,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:03,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 125 states and 394 transitions. [2021-11-23 00:43:03,982 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 394 transitions. [2021-11-23 00:43:03,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:43:03,984 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:03,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:04,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 00:43:04,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:04,377 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:43:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:06,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 129 states and 415 transitions. [2021-11-23 00:43:06,638 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 415 transitions. [2021-11-23 00:43:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:43:06,639 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:06,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:06,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:43:06,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:43:08,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:08,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 133 states and 431 transitions. [2021-11-23 00:43:08,877 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 431 transitions. [2021-11-23 00:43:08,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:43:08,879 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:08,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:08,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 00:43:08,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:43:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 135 states and 433 transitions. [2021-11-23 00:43:10,201 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 433 transitions. [2021-11-23 00:43:10,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:43:10,202 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:10,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:10,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 00:43:10,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:43:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 137 states and 435 transitions. [2021-11-23 00:43:11,776 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 435 transitions. [2021-11-23 00:43:11,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:43:11,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:11,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:13,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 00:43:13,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 12 proven. 44 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:43:15,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:15,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 139 states and 437 transitions. [2021-11-23 00:43:15,867 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 437 transitions. [2021-11-23 00:43:15,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:43:15,868 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:15,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:15,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 00:43:15,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:16,286 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:43:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 141 states and 439 transitions. [2021-11-23 00:43:17,797 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 439 transitions. [2021-11-23 00:43:17,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:43:17,798 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:17,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:17,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:43:17,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:17,901 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:43:19,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:19,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 145 states and 483 transitions. [2021-11-23 00:43:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 483 transitions. [2021-11-23 00:43:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:43:19,617 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:19,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:19,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:43:19,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:19,717 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:43:20,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:20,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 145 states and 482 transitions. [2021-11-23 00:43:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 482 transitions. [2021-11-23 00:43:20,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:43:20,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:20,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:20,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:43:20,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:43:21,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:21,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 145 states and 481 transitions. [2021-11-23 00:43:21,053 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 481 transitions. [2021-11-23 00:43:21,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 00:43:21,054 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:21,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:21,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:43:21,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-23 00:43:23,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:23,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 148 states and 493 transitions. [2021-11-23 00:43:23,098 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 493 transitions. [2021-11-23 00:43:23,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:43:23,099 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:23,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:23,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:43:23,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:23,867 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:43:29,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:29,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 157 states and 558 transitions. [2021-11-23 00:43:29,499 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 558 transitions. [2021-11-23 00:43:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:43:29,501 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:29,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:29,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:43:29,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:29,696 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:43:32,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:32,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 161 states and 561 transitions. [2021-11-23 00:43:32,305 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 561 transitions. [2021-11-23 00:43:32,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:43:32,306 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:32,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:32,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:43:32,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:32,508 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:43:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:33,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 163 states and 563 transitions. [2021-11-23 00:43:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 563 transitions. [2021-11-23 00:43:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:43:33,729 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:33,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:33,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:43:33,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:43:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 165 states and 565 transitions. [2021-11-23 00:43:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 565 transitions. [2021-11-23 00:43:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:43:35,196 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:35,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:35,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:43:35,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:43:36,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:36,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 167 states and 567 transitions. [2021-11-23 00:43:36,722 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 567 transitions. [2021-11-23 00:43:36,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:43:36,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:36,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:36,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:43:36,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:43:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:38,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 169 states and 568 transitions. [2021-11-23 00:43:38,400 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 568 transitions. [2021-11-23 00:43:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:43:38,400 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:38,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:43:38,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:43:38,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:43:38,598 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:43:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:43:40,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 171 states and 569 transitions. [2021-11-23 00:43:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 569 transitions. [2021-11-23 00:43:40,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 00:43:40,022 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:43:40,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:43:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:43:40,055 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:43:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:43:40,110 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 51 iterations. [2021-11-23 00:43:40,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:43:40 ImpRootNode [2021-11-23 00:43:40,199 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:43:40,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:43:40,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:43:40,200 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:43:40,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:42:24" (3/4) ... [2021-11-23 00:43:40,204 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:43:40,291 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:43:40,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:43:40,292 INFO L158 Benchmark]: Toolchain (without parser) took 76263.49ms. Allocated memory was 90.2MB in the beginning and 524.3MB in the end (delta: 434.1MB). Free memory was 53.4MB in the beginning and 293.8MB in the end (delta: -240.4MB). Peak memory consumption was 193.6MB. Max. memory is 16.1GB. [2021-11-23 00:43:40,293 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:43:40,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.71ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 53.2MB in the beginning and 94.5MB in the end (delta: -41.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:43:40,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.09ms. Allocated memory is still 119.5MB. Free memory was 94.5MB in the beginning and 92.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:43:40,295 INFO L158 Benchmark]: Boogie Preprocessor took 20.98ms. Allocated memory is still 119.5MB. Free memory was 92.9MB in the beginning and 91.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:43:40,296 INFO L158 Benchmark]: RCFGBuilder took 318.95ms. Allocated memory is still 119.5MB. Free memory was 91.8MB in the beginning and 82.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:43:40,297 INFO L158 Benchmark]: CodeCheck took 75526.09ms. Allocated memory was 119.5MB in the beginning and 524.3MB in the end (delta: 404.8MB). Free memory was 82.3MB in the beginning and 297.0MB in the end (delta: -214.7MB). Peak memory consumption was 191.8MB. Max. memory is 16.1GB. [2021-11-23 00:43:40,297 INFO L158 Benchmark]: Witness Printer took 92.26ms. Allocated memory is still 524.3MB. Free memory was 297.0MB in the beginning and 293.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 00:43:40,301 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, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.4s, OverallIterations: 51, 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, 5279 SdHoareTripleChecker+Valid, 163.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1561 mSDsluCounter, 3188 SdHoareTripleChecker+Invalid, 149.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1278 mSDsCounter, 17859 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47246 IncrementalHoareTripleChecker+Invalid, 65105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17859 mSolverCounterUnsat, 1910 mSDtfsCounter, 47246 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22953 GetRequests, 21648 SyntacticMatches, 707 SemanticMatches, 598 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174538 ImplicationChecksByTransitivity, 59.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 1594 NumberOfCodeBlocks, 1594 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 1497 ConstructedInterpolants, 0 QuantifiedInterpolants, 6900 SizeOfPredicates, 92 NumberOfNonLiveVariables, 5348 ConjunctsInSsa, 772 ConjunctsInUnsatCore, 50 InterpolantComputations, 4 PerfectInterpolantSequences, 1058/2190 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 - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L23] y = 0 [L24] x = 0 [L25] c = 0 VAL [c=0, counter=0, k=6, x=0, y=0] [L27] EXPR counter++ VAL [c=0, counter=1, counter++=0, k=6, x=0, y=0] [L27] COND TRUE counter++<5 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [\old(cond)=1, counter=1] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [c=0, counter=1, k=6, x=0, y=0] [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x VAL [c=1, counter=1, k=6, x=1, y=1] [L27] EXPR counter++ VAL [c=1, counter=2, counter++=1, k=6, x=1, y=1] [L27] COND TRUE counter++<5 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [\old(cond)=1, counter=2] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [c=1, counter=2, k=6, x=1, y=1] [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x VAL [c=2, counter=2, k=6, x=9, y=2] [L27] EXPR counter++ VAL [c=2, counter=3, counter++=2, k=6, x=9, y=2] [L27] COND TRUE counter++<5 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [\old(cond)=1, counter=3] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [c=2, counter=3, k=6, x=9, y=2] [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x VAL [c=3, counter=3, k=6, x=36, y=3] [L27] EXPR counter++ VAL [c=3, counter=4, counter++=3, k=6, x=36, y=3] [L27] COND TRUE counter++<5 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [\old(cond)=1, counter=4] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [c=3, counter=4, k=6, x=36, y=3] [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x VAL [c=4, counter=4, k=6, x=100, y=4] [L27] EXPR counter++ VAL [c=4, counter=5, counter++=4, k=6, x=100, y=4] [L27] COND TRUE counter++<5 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [\old(cond)=1, counter=5] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [c=4, counter=5, k=6, x=100, y=4] [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x VAL [c=5, counter=5, k=6, x=225, y=5] [L27] EXPR counter++ VAL [c=5, counter=6, counter++=5, k=6, x=225, y=5] [L27] COND FALSE !(counter++<5) [L37] CALL __VERIFIER_assert(k*y - (y*y) == 0) VAL [\old(cond)=0, counter=6] [L10] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=6] [L12] reach_error() VAL [\old(cond)=0, cond=0, counter=6] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.71ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 53.2MB in the beginning and 94.5MB in the end (delta: -41.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.09ms. Allocated memory is still 119.5MB. Free memory was 94.5MB in the beginning and 92.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.98ms. Allocated memory is still 119.5MB. Free memory was 92.9MB in the beginning and 91.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.95ms. Allocated memory is still 119.5MB. Free memory was 91.8MB in the beginning and 82.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 75526.09ms. Allocated memory was 119.5MB in the beginning and 524.3MB in the end (delta: 404.8MB). Free memory was 82.3MB in the beginning and 297.0MB in the end (delta: -214.7MB). Peak memory consumption was 191.8MB. Max. memory is 16.1GB. * Witness Printer took 92.26ms. Allocated memory is still 524.3MB. Free memory was 297.0MB in the beginning and 293.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:43:40,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db2abb7-3b7d-428a-9f70-cb1e726a58e7/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE