./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.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_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/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_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/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_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/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 68bb6d7d6818d105c8d36601291f0fbd6a765091c35c37006c1280fceb3f620a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:18:13,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:18:13,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:18:13,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:18:13,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:18:13,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:18:13,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:18:13,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:18:13,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:18:13,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:18:13,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:18:13,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:18:13,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:18:13,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:18:13,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:18:13,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:18:13,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:18:13,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:18:13,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:18:13,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:18:13,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:18:13,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:18:13,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:18:13,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:18:13,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:18:13,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:18:13,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:18:13,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:18:13,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:18:13,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:18:13,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:18:13,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:18:13,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:18:13,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:18:13,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:18:13,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:18:13,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:18:13,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:18:13,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:18:13,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:18:13,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:18:13,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:18:13,174 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:18:13,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:18:13,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:18:13,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:18:13,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:18:13,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:18:13,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:18:13,177 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:18:13,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:18:13,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:18:13,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:18:13,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:18:13,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:18:13,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:18:13,186 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:18:13,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:18:13,186 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:18:13,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:18:13,187 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:18:13,187 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:18:13,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:18:13,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:18:13,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:18:13,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:18:13,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:18:13,189 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:18:13,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:18:13,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:18:13,189 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_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68bb6d7d6818d105c8d36601291f0fbd6a765091c35c37006c1280fceb3f620a [2021-11-23 01:18:13,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:18:13,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:18:13,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:18:13,495 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:18:13,496 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:18:13,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c [2021-11-23 01:18:13,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/data/d6102c4be/633cfd65b79f4bc09dba497b46a5435b/FLAGc5ed4218f [2021-11-23 01:18:14,034 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:18:14,035 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c [2021-11-23 01:18:14,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/data/d6102c4be/633cfd65b79f4bc09dba497b46a5435b/FLAGc5ed4218f [2021-11-23 01:18:14,402 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/data/d6102c4be/633cfd65b79f4bc09dba497b46a5435b [2021-11-23 01:18:14,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:18:14,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:18:14,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:18:14,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:18:14,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:18:14,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4f5d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14, skipping insertion in model container [2021-11-23 01:18:14,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:18:14,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:18:14,609 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_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c[597,610] [2021-11-23 01:18:14,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:18:14,654 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:18:14,671 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_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c[597,610] [2021-11-23 01:18:14,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:18:14,715 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:18:14,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14 WrapperNode [2021-11-23 01:18:14,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:18:14,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:18:14,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:18:14,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:18:14,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,762 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-11-23 01:18:14,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:18:14,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:18:14,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:18:14,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:18:14,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:18:14,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:18:14,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:18:14,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:18:14,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:14" (1/1) ... [2021-11-23 01:18:14,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:18:14,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:18:14,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:18:14,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36a3fbfb-cb47-43ff-bf74-110b5a5d6b62/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:18:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:18:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:18:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:18:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:18:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:18:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:18:14,966 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:18:14,967 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:18:15,146 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:18:15,183 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:18:15,184 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:18:15,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:18:15 BoogieIcfgContainer [2021-11-23 01:18:15,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:18:15,187 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:18:15,187 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:18:15,198 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:18:15,198 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:18:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-23 01:18:15,302 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-23 01:18:15,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:18:15,305 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:15,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:15,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:18:15,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:15,590 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 01:18:15,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-11-23 01:18:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-23 01:18:15,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:18:15,697 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:15,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:15,777 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 01:18:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:16,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 01:18:16,021 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 01:18:16,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:18:16,022 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:16,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:16,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:18:16,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:16,264 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 01:18:16,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:16,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2021-11-23 01:18:16,521 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2021-11-23 01:18:16,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:18:16,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:16,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:16,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 01:18:16,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:16,825 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:18:17,135 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 01:18:17,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:17,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2021-11-23 01:18:17,992 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2021-11-23 01:18:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:18:17,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:17,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:18,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:18:18,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:18,178 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 01:18:19,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:19,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 37 states and 74 transitions. [2021-11-23 01:18:19,641 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2021-11-23 01:18:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:18:19,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:19,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:19,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:18:19,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:18:24,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 43 states and 98 transitions. [2021-11-23 01:18:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 98 transitions. [2021-11-23 01:18:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:18:24,518 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:24,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:24,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:18:24,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:25,005 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 01:18:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:26,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 44 states and 101 transitions. [2021-11-23 01:18:26,201 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 101 transitions. [2021-11-23 01:18:26,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:18:26,203 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:26,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:26,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:18:26,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:26,807 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:18:28,371 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 01:18:32,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:18:32,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:32,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 47 states and 114 transitions. [2021-11-23 01:18:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 114 transitions. [2021-11-23 01:18:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:18:32,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:32,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:32,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:18:32,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:32,957 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 01:18:36,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 51 states and 128 transitions. [2021-11-23 01:18:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 128 transitions. [2021-11-23 01:18:36,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:18:36,902 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:36,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:36,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:18:36,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:36,981 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 01:18:38,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:38,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 56 states and 153 transitions. [2021-11-23 01:18:38,813 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 153 transitions. [2021-11-23 01:18:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:18:38,820 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:38,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:38,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:18:38,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:40,159 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 01:18:44,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 60 states and 180 transitions. [2021-11-23 01:18:44,288 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 180 transitions. [2021-11-23 01:18:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:18:44,290 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:44,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:44,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:18:44,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:45,027 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 01:18:46,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:46,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 60 states and 171 transitions. [2021-11-23 01:18:46,667 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 171 transitions. [2021-11-23 01:18:46,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:18:46,669 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:46,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:46,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 01:18:46,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:48,058 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:18:49,369 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 01:18:56,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:18:56,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:56,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 63 states and 191 transitions. [2021-11-23 01:18:56,599 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 191 transitions. [2021-11-23 01:18:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:18:56,601 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:56,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:56,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:18:56,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:57,110 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 01:19:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:05,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 71 states and 238 transitions. [2021-11-23 01:19:05,542 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 238 transitions. [2021-11-23 01:19:05,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:19:05,544 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:05,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:05,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:19:05,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:19:05,631 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 01:19:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:06,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 72 states and 239 transitions. [2021-11-23 01:19:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 239 transitions. [2021-11-23 01:19:06,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:19:06,635 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:06,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:06,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 01:19:06,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:19:09,310 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 01:19:17,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:17,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 76 states and 273 transitions. [2021-11-23 01:19:17,932 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 273 transitions. [2021-11-23 01:19:17,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:19:17,936 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:17,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:18,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 01:19:18,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:19:19,789 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 01:19:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:22,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 76 states and 257 transitions. [2021-11-23 01:19:22,685 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 257 transitions. [2021-11-23 01:19:22,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:19:22,687 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:22,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:22,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:19:22,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:19:25,672 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:19:28,504 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 01:19:37,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:19:45,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 79 states and 286 transitions. [2021-11-23 01:19:45,942 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 286 transitions. [2021-11-23 01:19:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:19:45,943 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:45,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:45,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:19:45,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:19:46,857 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 01:19:59,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:59,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 83 states and 300 transitions. [2021-11-23 01:19:59,587 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 300 transitions. [2021-11-23 01:19:59,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:19:59,589 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:59,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:59,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:19:59,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:19:59,682 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 01:20:05,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:05,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 88 states and 343 transitions. [2021-11-23 01:20:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 343 transitions. [2021-11-23 01:20:05,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:20:05,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:05,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:05,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:20:05,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:13,127 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 01:20:32,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:32,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 92 states and 384 transitions. [2021-11-23 01:20:32,678 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 384 transitions. [2021-11-23 01:20:32,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:20:32,680 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:32,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:32,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:20:32,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:37,993 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 01:20:45,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 92 states and 359 transitions. [2021-11-23 01:20:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 359 transitions. [2021-11-23 01:20:45,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 01:20:45,217 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:45,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:45,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 01:20:45,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:57,491 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:21:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:23:04,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:23:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:23:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 113 states and 487 transitions. [2021-11-23 01:23:31,028 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 487 transitions. [2021-11-23 01:23:31,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 01:23:31,029 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:23:31,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:23:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:23:31,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:23:31,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:23:47,812 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:23:59,252 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:27:01,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:27:04,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:04,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 133 states and 589 transitions. [2021-11-23 01:27:04,147 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 589 transitions. [2021-11-23 01:27:04,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:27:04,149 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:04,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:04,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:27:04,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:27:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:27:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 137 states and 604 transitions. [2021-11-23 01:27:55,284 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 604 transitions. [2021-11-23 01:27:55,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:27:55,286 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:55,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:55,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:27:55,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:27:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:28:43,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:28:43,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 141 states and 617 transitions. [2021-11-23 01:28:43,318 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 617 transitions. [2021-11-23 01:28:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:28:43,319 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:28:43,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:28:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:28:43,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:28:43,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:28:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:29:24,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:29:24,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 146 states and 674 transitions. [2021-11-23 01:29:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 674 transitions. [2021-11-23 01:29:24,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 01:29:24,364 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:29:24,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:29:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:29:24,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:29:24,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:29:51,026 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:31:11,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:31:11,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 149 states and 687 transitions. [2021-11-23 01:31:11,239 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 687 transitions. [2021-11-23 01:31:11,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 01:31:11,241 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:31:11,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:31:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:31:11,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 01:31:11,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:31:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:31:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:31:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 150 states and 693 transitions. [2021-11-23 01:31:52,010 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 693 transitions. [2021-11-23 01:31:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 01:31:52,013 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:31:52,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:31:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:31:52,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 01:31:52,132 INFO L286 TraceCheckSpWp]: Computing forward predicates...