./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound50.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_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/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_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/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_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/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 ca2134f8a32f49a0943527ee47fd89b4eb01286294fd09a8197c7c707de74c1d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:08:02,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:08:02,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:08:02,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:08:02,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:08:02,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:08:02,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:08:02,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:08:02,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:08:02,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:08:02,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:08:02,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:08:02,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:08:02,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:08:02,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:08:02,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:08:02,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:08:02,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:08:02,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:08:02,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:08:02,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:08:02,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:08:02,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:08:02,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:08:02,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:08:02,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:08:02,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:08:02,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:08:02,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:08:02,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:08:02,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:08:02,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:08:02,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:08:02,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:08:02,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:08:02,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:08:02,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:08:02,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:08:02,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:08:02,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:08:02,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:08:02,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:08:02,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:08:02,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:08:02,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:08:02,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:08:02,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:08:02,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:08:02,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:08:02,237 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:08:02,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:08:02,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:08:02,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:08:02,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:08:02,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:08:02,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:08:02,245 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:08:02,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:08:02,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:08:02,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:08:02,246 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:08:02,246 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:08:02,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:08:02,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:08:02,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:08:02,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:08:02,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:08:02,248 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:08:02,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:08:02,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:08:02,248 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_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca2134f8a32f49a0943527ee47fd89b4eb01286294fd09a8197c7c707de74c1d [2021-11-23 01:08:02,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:08:02,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:08:02,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:08:02,521 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:08:02,541 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:08:02,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound50.c [2021-11-23 01:08:02,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/data/501b88092/895276f28ce54f14945f83c7dd5ac904/FLAGba4194804 [2021-11-23 01:08:03,023 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:08:03,023 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound50.c [2021-11-23 01:08:03,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/data/501b88092/895276f28ce54f14945f83c7dd5ac904/FLAGba4194804 [2021-11-23 01:08:03,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/data/501b88092/895276f28ce54f14945f83c7dd5ac904 [2021-11-23 01:08:03,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:08:03,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:08:03,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:08:03,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:08:03,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:08:03,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@146ab2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03, skipping insertion in model container [2021-11-23 01:08:03,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:08:03,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:08:03,618 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_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound50.c[535,548] [2021-11-23 01:08:03,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:08:03,645 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:08:03,658 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_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound50.c[535,548] [2021-11-23 01:08:03,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:08:03,691 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:08:03,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03 WrapperNode [2021-11-23 01:08:03,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:08:03,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:08:03,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:08:03,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:08:03,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,729 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2021-11-23 01:08:03,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:08:03,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:08:03,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:08:03,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:08:03,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:08:03,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:08:03,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:08:03,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:08:03,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:03" (1/1) ... [2021-11-23 01:08:03,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:08:03,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:08:03,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:08:03,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c744ce3-e5ec-40a8-900b-a9ae3ab5981a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:08:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:08:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:08:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:08:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:08:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:08:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:08:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:08:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:08:03,893 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:08:03,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:08:04,032 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:08:04,053 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:08:04,053 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 01:08:04,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:04 BoogieIcfgContainer [2021-11-23 01:08:04,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:08:04,057 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:08:04,057 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:08:04,067 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:08:04,067 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:04" (1/1) ... [2021-11-23 01:08:04,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:08:04,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:04,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2021-11-23 01:08:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2021-11-23 01:08:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:08:04,139 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:04,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:04,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 01:08:04,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:04,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:08:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2021-11-23 01:08:04,467 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-11-23 01:08:04,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:08:04,469 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:04,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:04,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 01:08:04,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:04,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:08:04,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2021-11-23 01:08:04,729 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2021-11-23 01:08:04,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:08:04,730 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:04,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:04,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:08:04,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:08:07,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:08:08,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:08,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 34 states and 54 transitions. [2021-11-23 01:08:08,008 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2021-11-23 01:08:08,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:08:08,009 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:08,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:08,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 01:08:08,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:09,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:08:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 38 states and 63 transitions. [2021-11-23 01:08:11,423 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2021-11-23 01:08:11,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:08:11,425 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:11,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:11,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:08:11,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:08:11,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:11,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 41 states and 66 transitions. [2021-11-23 01:08:11,692 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 66 transitions. [2021-11-23 01:08:11,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:08:11,693 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:11,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:11,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:08:11,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:08:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:26,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 49 states and 86 transitions. [2021-11-23 01:08:26,929 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 86 transitions. [2021-11-23 01:08:26,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:08:26,931 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:26,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:26,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:08:26,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:27,126 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 01:08:27,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:27,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 53 states and 92 transitions. [2021-11-23 01:08:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 92 transitions. [2021-11-23 01:08:27,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:08:27,173 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:27,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:27,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:08:27,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:08:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:34,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 57 states and 101 transitions. [2021-11-23 01:08:34,433 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 101 transitions. [2021-11-23 01:08:34,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 01:08:34,434 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:34,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:34,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:08:34,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:08:38,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 59 states and 105 transitions. [2021-11-23 01:08:38,915 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 105 transitions. [2021-11-23 01:08:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:08:38,917 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:38,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:38,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 01:08:38,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:08:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-23 01:08:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 67 states and 125 transitions. [2021-11-23 01:08:52,580 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 125 transitions. [2021-11-23 01:08:52,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 01:08:52,583 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:52,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:52,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 01:08:52,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:09:00,174 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-23 01:09:22,865 WARN L227 SmtUtils]: Spent 20.47s on a formula simplification. DAG size of input: 32 DAG size of output: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:09:33,412 WARN L227 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:09:53,795 WARN L227 SmtUtils]: Spent 20.30s on a formula simplification. DAG size of input: 32 DAG size of output: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:10:14,411 WARN L227 SmtUtils]: Spent 20.26s on a formula simplification. DAG size of input: 34 DAG size of output: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:10:26,774 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:10:37,413 WARN L227 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:10:57,853 WARN L227 SmtUtils]: Spent 20.30s on a formula simplification. DAG size of input: 34 DAG size of output: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:11:18,115 WARN L227 SmtUtils]: Spent 20.20s on a formula simplification. DAG size of input: 36 DAG size of output: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:11:28,577 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:11:39,079 WARN L227 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:12:00,943 WARN L227 SmtUtils]: Spent 20.67s on a formula simplification. DAG size of input: 32 DAG size of output: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:12:21,371 WARN L227 SmtUtils]: Spent 20.34s on a formula simplification. DAG size of input: 34 DAG size of output: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:12:33,365 WARN L227 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:12:43,832 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:13:04,366 WARN L227 SmtUtils]: Spent 20.21s on a formula simplification. DAG size of input: 33 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:13:25,097 WARN L227 SmtUtils]: Spent 20.18s on a formula simplification. DAG size of input: 35 DAG size of output: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:13:35,657 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:13:46,085 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:14:06,595 WARN L227 SmtUtils]: Spent 20.40s on a formula simplification. DAG size of input: 33 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:14:27,062 WARN L227 SmtUtils]: Spent 20.40s on a formula simplification. DAG size of input: 35 DAG size of output: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:14:38,360 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:14:48,842 WARN L227 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:15:09,541 WARN L227 SmtUtils]: Spent 20.14s on a formula simplification. DAG size of input: 31 DAG size of output: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:15:30,083 WARN L227 SmtUtils]: Spent 20.44s on a formula simplification. DAG size of input: 33 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:15:42,752 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:15:53,268 WARN L227 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:15:58,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:16:02,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 76 states and 151 transitions. [2021-11-23 01:16:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 151 transitions. [2021-11-23 01:16:02,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:16:02,097 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:02,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:02,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:16:02,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:16:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:16:12,846 WARN L227 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:16:23,047 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:16:34,423 WARN L227 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:16:46,650 WARN L227 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:16:56,800 WARN L227 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:17:07,183 WARN L227 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:17:19,915 WARN L227 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:17:33,446 WARN L227 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:17:47,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:17:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 80 states and 163 transitions. [2021-11-23 01:17:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 163 transitions. [2021-11-23 01:17:47,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:17:47,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:17:47,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:17:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:17:47,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:17:47,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:17:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:17:51,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:17:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 86 states and 181 transitions. [2021-11-23 01:17:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 181 transitions. [2021-11-23 01:17:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 01:17:51,967 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:17:51,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:17:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:17:51,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 01:17:51,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:17:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:17:59,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:17:59,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 88 states and 188 transitions. [2021-11-23 01:17:59,589 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 188 transitions. [2021-11-23 01:17:59,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:17:59,591 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:17:59,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:17:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:17:59,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:17:59,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:17:59,722 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:18:22,302 WARN L227 SmtUtils]: Spent 20.43s on a formula simplification. DAG size of input: 32 DAG size of output: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:18:34,857 WARN L227 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:18:56,894 WARN L227 SmtUtils]: Spent 20.31s on a formula simplification. DAG size of input: 32 DAG size of output: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:19:08,407 WARN L227 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:19:30,741 WARN L227 SmtUtils]: Spent 20.40s on a formula simplification. DAG size of input: 30 DAG size of output: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:19:42,013 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:19:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:42,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 92 states and 193 transitions. [2021-11-23 01:19:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 193 transitions. [2021-11-23 01:19:42,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:19:42,064 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:42,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:42,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:19:42,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:19:42,754 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:19:53,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 104 states and 238 transitions. [2021-11-23 01:19:53,985 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 238 transitions. [2021-11-23 01:19:53,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:19:53,987 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:53,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:54,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:19:54,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:19:54,115 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:20:01,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 106 states and 239 transitions. [2021-11-23 01:20:01,696 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 239 transitions. [2021-11-23 01:20:01,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:20:01,698 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:01,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:01,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 01:20:01,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:20:14,824 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:20:38,750 WARN L227 SmtUtils]: Spent 20.31s on a formula simplification. DAG size of input: 32 DAG size of output: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:20:59,592 WARN L227 SmtUtils]: Spent 20.34s on a formula simplification. DAG size of input: 34 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:21:11,587 WARN L227 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:21:23,091 WARN L227 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:21:24,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:21:45,206 WARN L227 SmtUtils]: Spent 20.37s on a formula simplification. DAG size of input: 34 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:22:06,690 WARN L227 SmtUtils]: Spent 20.47s on a formula simplification. DAG size of input: 36 DAG size of output: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:22:18,117 WARN L227 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:22:29,269 WARN L227 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:22:31,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 108 states and 243 transitions. [2021-11-23 01:22:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 243 transitions. [2021-11-23 01:22:31,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:22:31,803 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:31,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:31,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:22:31,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:31,983 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:22:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:22:34,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 108 states and 242 transitions. [2021-11-23 01:22:34,492 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2021-11-23 01:22:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:22:34,494 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:22:34,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:22:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:22:34,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:22:34,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:22:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.