./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi --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 7c6261a52ba91bad3864c182e4633afd262bc5fe07cf18f92cb66db83623b9ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:06:07,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:06:07,889 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:06:07,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:06:07,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:06:07,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:06:07,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:06:07,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:06:07,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:06:07,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:06:07,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:06:07,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:06:07,921 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:06:07,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:06:07,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:06:07,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:06:07,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:06:07,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:06:07,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:06:07,925 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:06:07,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:06:07,926 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:06:07,926 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:06:07,927 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:06:07,927 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:06:07,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:06:07,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:06:07,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:06:07,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:06:07,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:06:07,930 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:06:07,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:06:07,931 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:06:07,931 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_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c6261a52ba91bad3864c182e4633afd262bc5fe07cf18f92cb66db83623b9ae [2023-11-24 23:06:08,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:06:08,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:06:08,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:06:08,199 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:06:08,200 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:06:08,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c [2023-11-24 23:06:11,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:06:11,620 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:06:11,620 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c [2023-11-24 23:06:11,633 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/data/cdd9ca42b/6f2bdc558c7a41899bde532bc8654d57/FLAG81ac50e33 [2023-11-24 23:06:11,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/data/cdd9ca42b/6f2bdc558c7a41899bde532bc8654d57 [2023-11-24 23:06:11,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:06:11,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:06:11,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:06:11,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:06:11,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:06:11,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:11,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5936cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11, skipping insertion in model container [2023-11-24 23:06:11,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:11,687 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:06:11,852 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_988e8f58-b517-4c44-a397-35fc6547dfe2/sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c[1136,1149] [2023-11-24 23:06:11,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:06:11,888 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:06:11,901 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_988e8f58-b517-4c44-a397-35fc6547dfe2/sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c[1136,1149] [2023-11-24 23:06:11,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:06:11,930 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:06:11,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11 WrapperNode [2023-11-24 23:06:11,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:06:11,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:06:11,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:06:11,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:06:11,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:11,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:11,995 INFO L138 Inliner]: procedures = 17, calls = 84, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2023-11-24 23:06:11,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:06:11,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:06:11,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:06:11,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:06:12,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:12,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:12,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:12,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:12,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:12,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:12,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:12,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:12,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:06:12,045 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:06:12,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:06:12,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:06:12,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:06:11" (1/1) ... [2023-11-24 23:06:12,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:06:12,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:06:12,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:06:12,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988e8f58-b517-4c44-a397-35fc6547dfe2/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:06:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:06:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:06:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:06:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_41_to_52_0 [2023-11-24 23:06:12,138 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_41_to_52_0 [2023-11-24 23:06:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_32_to_55_0 [2023-11-24 23:06:12,138 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_32_to_55_0 [2023-11-24 23:06:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:06:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:06:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:06:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:06:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:06:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:06:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:06:12,235 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:06:12,237 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:06:12,551 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:06:12,642 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:06:12,642 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:06:12,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:06:12 BoogieIcfgContainer [2023-11-24 23:06:12,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:06:12,648 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:06:12,648 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:06:12,659 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:06:12,660 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:06:12" (1/1) ... [2023-11-24 23:06:12,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:06:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:06:12,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 50 transitions. [2023-11-24 23:06:12,739 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2023-11-24 23:06:12,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:06:12,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:06:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:06:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:06:13,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 72 conjunts are in the unsatisfiable core [2023-11-24 23:06:13,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:06:13,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:13,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:13,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:13,435 INFO L349 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2023-11-24 23:06:13,436 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 263 treesize of output 69 [2023-11-24 23:06:13,504 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-24 23:06:13,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 69 [2023-11-24 23:06:13,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:13,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:13,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:13,564 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 23:06:13,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 60 [2023-11-24 23:06:13,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2023-11-24 23:06:13,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2023-11-24 23:06:14,094 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-11-24 23:06:14,095 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 36 treesize of output 24 [2023-11-24 23:06:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:06:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:06:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 43 states and 63 transitions. [2023-11-24 23:06:14,510 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 63 transitions. [2023-11-24 23:06:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:06:14,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:06:14,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:06:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:06:14,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 93 conjunts are in the unsatisfiable core [2023-11-24 23:06:14,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:06:14,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 44 [2023-11-24 23:06:14,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:06:14,869 INFO L349 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2023-11-24 23:06:14,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 82 treesize of output 72 [2023-11-24 23:06:14,910 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 23:06:14,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 38 [2023-11-24 23:06:46,121 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-24 23:06:46,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 23 [2023-11-24 23:06:46,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.