./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-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_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/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_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/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_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/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 49ad15a378f82eb46c5309a80aca8c6c5eb2b292a6d759bef0e14aac07d4d52c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:11:57,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:11:57,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:11:57,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:11:57,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:11:57,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:11:57,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:11:57,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:11:57,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:11:57,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:11:57,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:11:57,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:11:57,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:11:57,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:11:57,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:11:57,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:11:57,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:11:57,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:11:57,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:11:57,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:11:57,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:11:57,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:11:57,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:11:57,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:11:57,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:11:57,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:11:57,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:11:57,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:11:57,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:11:57,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:11:57,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:11:57,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:11:57,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:11:57,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:11:57,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:11:57,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:11:57,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:11:57,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:11:57,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:11:57,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:11:57,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:11:57,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:11:57,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:11:57,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:11:57,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:11:57,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:11:57,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:11:57,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:11:57,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:11:57,257 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:11:57,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:11:57,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:11:57,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:11:57,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:11:57,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:11:57,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:11:57,259 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:11:57,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:11:57,259 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:11:57,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:11:57,260 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:11:57,260 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:11:57,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:11:57,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:11:57,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:11:57,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:11:57,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:11:57,262 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:11:57,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:11:57,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:11:57,263 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_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49ad15a378f82eb46c5309a80aca8c6c5eb2b292a6d759bef0e14aac07d4d52c [2021-11-23 01:11:57,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:11:57,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:11:57,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:11:57,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:11:57,702 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:11:57,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c [2021-11-23 01:11:57,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/data/86f55a8de/831885edda7a485ba7f1240449d99524/FLAG43ff2c28c [2021-11-23 01:11:58,358 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:11:58,360 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c [2021-11-23 01:11:58,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/data/86f55a8de/831885edda7a485ba7f1240449d99524/FLAG43ff2c28c [2021-11-23 01:11:58,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/data/86f55a8de/831885edda7a485ba7f1240449d99524 [2021-11-23 01:11:58,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:11:58,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:11:58,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:11:58,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:11:58,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:11:58,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:58" (1/1) ... [2021-11-23 01:11:58,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258894a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:58, skipping insertion in model container [2021-11-23 01:11:58,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:58" (1/1) ... [2021-11-23 01:11:58,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:11:58,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:11:59,087 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_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c[537,550] [2021-11-23 01:11:59,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:11:59,124 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:11:59,143 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_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound20.c[537,550] [2021-11-23 01:11:59,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:11:59,183 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:11:59,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59 WrapperNode [2021-11-23 01:11:59,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:11:59,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:11:59,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:11:59,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:11:59,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,236 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-23 01:11:59,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:11:59,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:11:59,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:11:59,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:11:59,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:11:59,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:11:59,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:11:59,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:11:59,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:11:59,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:11:59,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:11:59,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcafb79-c6f1-4a00-8bee-dcdc9c6f146f/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:11:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:11:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:11:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:11:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:11:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:11:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:11:59,461 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:11:59,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:11:59,635 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:11:59,691 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:11:59,692 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:11:59,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:59 BoogieIcfgContainer [2021-11-23 01:11:59,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:11:59,696 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:11:59,696 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:11:59,708 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:11:59,708 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:59" (1/1) ... [2021-11-23 01:11:59,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:11:59,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2021-11-23 01:11:59,806 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-11-23 01:11:59,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:11:59,811 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:59,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:00,006 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 01:12:00,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:00,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-23 01:12:00,070 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-23 01:12:00,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:12:00,071 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:00,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:00,138 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 01:12:00,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:00,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2021-11-23 01:12:00,178 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-11-23 01:12:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:12:00,178 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:00,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:00,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:12:00,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:00,507 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 01:12:00,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:00,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2021-11-23 01:12:00,822 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-11-23 01:12:00,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:12:00,824 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:00,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:00,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:12:00,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:00,963 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 01:12:01,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:01,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 39 transitions. [2021-11-23 01:12:01,457 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2021-11-23 01:12:01,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:12:01,458 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:01,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:01,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:12:01,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:01,637 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 01:12:02,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:02,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 33 states and 60 transitions. [2021-11-23 01:12:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 60 transitions. [2021-11-23 01:12:02,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:12:02,599 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:02,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:02,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:12:02,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:03,754 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 01:12:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:05,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 37 states and 74 transitions. [2021-11-23 01:12:05,825 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2021-11-23 01:12:05,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:12:05,826 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:05,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:05,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 01:12:05,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:09,264 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 01:12:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 39 states and 77 transitions. [2021-11-23 01:12:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 77 transitions. [2021-11-23 01:12:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:12:10,151 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:10,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:10,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 01:12:10,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:10,852 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 01:12:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 41 states and 85 transitions. [2021-11-23 01:12:11,509 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 85 transitions. [2021-11-23 01:12:11,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:12:11,511 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:11,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:11,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:12:11,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:18,493 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 01:12:23,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:12:23,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:23,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 45 states and 99 transitions. [2021-11-23 01:12:23,248 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 99 transitions. [2021-11-23 01:12:23,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:12:23,250 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:23,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:23,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 01:12:23,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:30,043 WARN L227 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 13 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:12:34,511 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 01:12:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:36,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 47 states and 102 transitions. [2021-11-23 01:12:36,621 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 102 transitions. [2021-11-23 01:12:36,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:12:36,622 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:36,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:36,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:12:36,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:36,984 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 01:12:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:40,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 55 states and 136 transitions. [2021-11-23 01:12:40,094 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 136 transitions. [2021-11-23 01:12:40,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:12:40,097 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:40,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:40,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:12:40,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:49,680 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 01:12:52,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:52,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 58 states and 140 transitions. [2021-11-23 01:12:52,313 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 140 transitions. [2021-11-23 01:12:52,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:12:52,315 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:52,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:52,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:12:52,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:52,398 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 01:12:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 58 states and 139 transitions. [2021-11-23 01:12:53,066 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 139 transitions. [2021-11-23 01:12:53,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:12:53,068 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:53,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:53,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:12:53,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:12:54,986 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 01:12:57,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:57,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 60 states and 150 transitions. [2021-11-23 01:12:57,317 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 150 transitions. [2021-11-23 01:12:57,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:12:57,319 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:57,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:57,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-23 01:12:57,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:13:36,016 WARN L227 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 18 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:13:36,364 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:13:39,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:13:40,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:13:58,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:13:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 66 states and 173 transitions. [2021-11-23 01:13:58,809 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 173 transitions. [2021-11-23 01:13:58,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:13:58,811 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:58,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:59,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-23 01:13:59,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:14:13,985 WARN L227 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 14 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:14:30,004 WARN L227 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 17 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:14:30,116 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 01:14:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:43,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 69 states and 177 transitions. [2021-11-23 01:14:43,621 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 177 transitions. [2021-11-23 01:14:43,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:14:43,623 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:43,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:44,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-23 01:14:44,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:15:22,729 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:15:37,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:15:39,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:15:41,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:15:53,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:16:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:14,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 85 states and 221 transitions. [2021-11-23 01:16:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 221 transitions. [2021-11-23 01:16:14,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:16:14,224 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:14,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:14,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:16:14,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:16:15,899 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:34,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:16:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 93 states and 269 transitions. [2021-11-23 01:16:37,005 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 269 transitions. [2021-11-23 01:16:37,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:16:37,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:37,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:37,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-23 01:16:37,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:16:54,181 WARN L227 SmtUtils]: Spent 7.68s on a formula simplification. DAG size of input: 15 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:17:09,184 WARN L227 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 18 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:17:14,104 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 01:17:20,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:17:22,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:17:25,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:17:51,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:17:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 98 states and 278 transitions. [2021-11-23 01:17:51,084 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 278 transitions. [2021-11-23 01:17:51,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:17:51,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:17:51,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:17:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:17:51,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-23 01:17:51,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:13,008 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 01:18:39,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 100 states and 280 transitions. [2021-11-23 01:18:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 280 transitions. [2021-11-23 01:18:39,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:18:39,151 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:39,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:39,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:18:39,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:39,237 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 01:18:45,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:45,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 100 states and 279 transitions. [2021-11-23 01:18:45,049 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 279 transitions. [2021-11-23 01:18:45,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:18:45,051 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:45,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:45,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:18:45,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:45,147 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 01:18:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 101 states and 282 transitions. [2021-11-23 01:18:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 282 transitions. [2021-11-23 01:18:55,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:18:55,767 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:55,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:55,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:18:55,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:18:55,857 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 01:19:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:02,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 101 states and 280 transitions. [2021-11-23 01:19:02,034 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 280 transitions. [2021-11-23 01:19:02,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:19:02,035 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:02,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:02,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 01:19:02,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:19:17,254 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:19:17,303 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 01:19:38,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:38,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 103 states and 294 transitions. [2021-11-23 01:19:38,562 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 294 transitions. [2021-11-23 01:19:38,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:19:38,563 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:38,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:39,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-23 01:19:39,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:16,797 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 20 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:20:27,083 WARN L227 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 19 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:20:51,847 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:52,056 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:52,680 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:53,188 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:54,867 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:55,162 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:55,357 INFO L883 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:55,837 INFO L883 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:56,752 INFO L883 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:58,098 INFO L883 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:20:59,782 INFO L883 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:21:01,888 INFO L883 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:21:05,040 INFO L883 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:21:08,639 INFO L883 QuantifierPusher]: Run 90 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:21:13,185 INFO L883 QuantifierPusher]: Run 100 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:21:18,476 INFO L883 QuantifierPusher]: Run 110 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:21:25,316 INFO L883 QuantifierPusher]: Run 120 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:21:33,004 INFO L883 QuantifierPusher]: Run 130 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:21:41,808 INFO L883 QuantifierPusher]: Run 140 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:21:52,670 INFO L883 QuantifierPusher]: Run 150 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:22:05,105 INFO L883 QuantifierPusher]: Run 160 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:22:19,972 INFO L883 QuantifierPusher]: Run 170 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:22:35,278 INFO L883 QuantifierPusher]: Run 180 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:22:55,010 INFO L883 QuantifierPusher]: Run 190 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:23:17,233 INFO L883 QuantifierPusher]: Run 200 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:23:40,329 INFO L883 QuantifierPusher]: Run 210 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:24:06,859 INFO L883 QuantifierPusher]: Run 220 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:24:34,719 INFO L883 QuantifierPusher]: Run 230 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:25:05,881 INFO L883 QuantifierPusher]: Run 240 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-23 01:25:39,935 INFO L883 QuantifierPusher]: Run 250 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug.