./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --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 82b98e74657ce84706a43470df686c21fc227d1db1df507636ad5f146dee0144 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:47:36,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:47:36,632 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 01:47:36,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:47:36,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:47:36,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:47:36,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:47:36,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:47:36,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:47:36,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:47:36,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:47:36,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:47:36,662 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:47:36,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:47:36,663 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:47:36,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:47:36,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:47:36,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:47:36,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:47:36,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:47:36,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:47:36,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:47:36,667 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:47:36,667 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:47:36,668 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:47:36,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:47:36,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:47:36,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:47:36,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:47:36,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:47:36,670 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:47:36,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:47:36,671 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:47:36,671 INFO L153 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_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82b98e74657ce84706a43470df686c21fc227d1db1df507636ad5f146dee0144 [2023-12-03 01:47:36,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:47:36,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:47:36,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:47:36,915 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:47:36,916 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:47:36,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c [2023-12-03 01:47:39,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:47:39,824 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:47:39,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c [2023-12-03 01:47:39,832 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/data/b041db14d/61be6ba4516949c9922ec8a754e475d0/FLAGd3bdcfe93 [2023-12-03 01:47:39,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/data/b041db14d/61be6ba4516949c9922ec8a754e475d0 [2023-12-03 01:47:39,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:47:39,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:47:39,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:47:39,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:47:39,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:47:39,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:47:39" (1/1) ... [2023-12-03 01:47:39,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7203a2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:39, skipping insertion in model container [2023-12-03 01:47:39,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:47:39" (1/1) ... [2023-12-03 01:47:39,877 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:47:40,043 WARN L240 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_dd9aa58a-ee97-4d7d-b256-7a4c80280572/sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c[1101,1114] [2023-12-03 01:47:40,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:47:40,079 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:47:40,092 WARN L240 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_dd9aa58a-ee97-4d7d-b256-7a4c80280572/sv-benchmarks/c/recursified_nla-digbench/recursified_fermat1-ll.c[1101,1114] [2023-12-03 01:47:40,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:47:40,123 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:47:40,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40 WrapperNode [2023-12-03 01:47:40,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:47:40,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:47:40,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:47:40,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:47:40,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,162 INFO L138 Inliner]: procedures = 18, calls = 82, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2023-12-03 01:47:40,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:47:40,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:47:40,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:47:40,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:47:40,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:47:40,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:47:40,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:47:40,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:47:40,193 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:47:40,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:47:40,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:47:40,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd9aa58a-ee97-4d7d-b256-7a4c80280572/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:47:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:47:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_33_to_36_0 [2023-12-03 01:47:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_33_to_36_0 [2023-12-03 01:47:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 01:47:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 01:47:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:47:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:47:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 01:47:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_38_to_43_0 [2023-12-03 01:47:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_38_to_43_0 [2023-12-03 01:47:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_46_to_51_0 [2023-12-03 01:47:40,259 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_46_to_51_0 [2023-12-03 01:47:40,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:47:40,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:47:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 01:47:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 01:47:40,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 01:47:40,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:47:40,347 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:47:40,349 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:47:40,585 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:47:40,619 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:47:40,619 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-03 01:47:40,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:47:40 BoogieIcfgContainer [2023-12-03 01:47:40,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:47:40,623 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:47:40,623 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:47:40,631 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:47:40,631 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:47:40" (1/1) ... [2023-12-03 01:47:40,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:47:40,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:47:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 44 states and 57 transitions. [2023-12-03 01:47:40,689 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2023-12-03 01:47:40,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:47:40,693 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:47:40,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:47:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:47:40,902 WARN L260 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 90 conjunts are in the unsatisfiable core [2023-12-03 01:47:40,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:47:41,017 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-03 01:47:41,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2023-12-03 01:47:41,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-03 01:47:41,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:47:41,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:47:41,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 45 [2023-12-03 01:47:51,536 WARN L293 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:48:01,642 WARN L293 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 01:48:11,900 WARN L293 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:48:22,081 WARN L293 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 01:48:32,275 WARN L293 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:48:32,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 71 [2023-12-03 01:48:32,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:48:43,183 WARN L293 SmtUtils]: Spent 10.15s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:48:44,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 01:48:55,034 WARN L293 SmtUtils]: Spent 10.09s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:49:05,415 WARN L293 SmtUtils]: Spent 10.12s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:49:06,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:49:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 51 states and 71 transitions. [2023-12-03 01:49:06,761 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2023-12-03 01:49:06,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:49:06,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:49:06,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:49:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:49:06,865 WARN L260 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 88 conjunts are in the unsatisfiable core [2023-12-03 01:49:06,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:49:06,889 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-03 01:49:06,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2023-12-03 01:49:06,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-03 01:49:07,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:49:07,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:49:07,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 37 [2023-12-03 01:49:07,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 41 [2023-12-03 01:49:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:49:09,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 01:49:11,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 01:49:15,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 01:49:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:49:15,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 54 states and 77 transitions. [2023-12-03 01:49:15,797 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2023-12-03 01:49:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 01:49:15,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:49:15,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:49:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:49:15,916 WARN L260 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 122 conjunts are in the unsatisfiable core [2023-12-03 01:49:15,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:49:15,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-03 01:49:15,942 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-03 01:49:15,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2023-12-03 01:49:16,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:49:16,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:49:16,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 37 [2023-12-03 01:49:17,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 41 [2023-12-03 01:49:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:49:22,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:49:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 65 states and 109 transitions. [2023-12-03 01:49:22,622 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 109 transitions. [2023-12-03 01:49:22,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 01:49:22,623 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:49:22,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:49:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:49:22,732 WARN L260 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 122 conjunts are in the unsatisfiable core [2023-12-03 01:49:22,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:49:22,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-03 01:49:22,758 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-03 01:49:22,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2023-12-03 01:49:22,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:49:22,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:49:22,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 37 [2023-12-03 01:49:24,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 41 [2023-12-03 01:49:24,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:49:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:49:26,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 66 states and 110 transitions. [2023-12-03 01:49:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 110 transitions. [2023-12-03 01:49:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 01:49:26,362 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:49:26,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:49:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:49:26,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 71 conjunts are in the unsatisfiable core [2023-12-03 01:49:26,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:49:26,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-03 01:49:26,459 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-03 01:49:26,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2023-12-03 01:49:28,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:49:28,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:49:28,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 48 [2023-12-03 01:49:29,892 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-12-03 01:49:29,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 54 [2023-12-03 01:49:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:49:58,393 WARN L293 SmtUtils]: Spent 20.15s on a formula simplification. DAG size of input: 64 DAG size of output: 57 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:50:09,596 WARN L293 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:50:20,118 WARN L293 SmtUtils]: Spent 10.12s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:50:30,747 WARN L293 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:50:41,420 WARN L293 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:50:51,984 WARN L293 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:51:02,534 WARN L293 SmtUtils]: Spent 10.15s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:51:13,364 WARN L293 SmtUtils]: Spent 10.14s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:51:23,922 WARN L293 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:51:34,560 WARN L293 SmtUtils]: Spent 10.10s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:51:43,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:51:43,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 70 states and 125 transitions. [2023-12-03 01:51:43,462 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 125 transitions. [2023-12-03 01:51:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-03 01:51:43,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:51:43,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:51:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:51:43,626 WARN L260 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 170 conjunts are in the unsatisfiable core [2023-12-03 01:51:43,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:51:43,651 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-03 01:51:43,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2023-12-03 01:51:43,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-03 01:51:44,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:51:44,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:51:44,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 48 [2023-12-03 01:52:03,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:52:03,681 INFO L349 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2023-12-03 01:52:03,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 121 treesize of output 72 [2023-12-03 01:52:05,075 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-03 01:52:05,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 68 [2023-12-03 01:52:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:52:29,931 WARN L293 SmtUtils]: Spent 20.29s on a formula simplification. DAG size of input: 58 DAG size of output: 56 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:52:41,642 WARN L293 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:53:13,509 WARN L293 SmtUtils]: Spent 30.19s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:53:25,488 WARN L293 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:55:20,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-03 01:55:22,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-03 01:55:43,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-03 01:55:48,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-03 01:55:49,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-03 01:55:51,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-03 01:56:07,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-03 01:56:08,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-03 01:56:39,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-03 01:58:58,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 01:59:05,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 01:59:10,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-03 01:59:11,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:11,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 89 states and 192 transitions. [2023-12-03 01:59:11,749 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 192 transitions. [2023-12-03 01:59:11,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 01:59:11,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:11,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:11,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 142 conjunts are in the unsatisfiable core [2023-12-03 01:59:11,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:11,960 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-03 01:59:11,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2023-12-03 01:59:12,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:59:12,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 01:59:12,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 37 [2023-12-03 02:02:31,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 41 [2023-12-03 02:02:42,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.