./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_dijkstra.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_dijkstra.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a9aad6636e75eb788a44e63e1649ee5df89ecae877c31a886978a8e3fdd2e8f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:44:59,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:44:59,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:45:00,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:45:00,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:45:00,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:45:00,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:45:00,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:45:00,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:45:00,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:45:00,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:45:00,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:45:00,059 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:45:00,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:45:00,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:45:00,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:45:00,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:45:00,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:45:00,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:45:00,063 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:45:00,063 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:45:00,064 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:45:00,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:45:00,065 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:45:00,066 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:45:00,066 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:45:00,067 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:45:00,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:45:00,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:45:00,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:45:00,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:45:00,070 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:45:00,070 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:45:00,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:45:00,071 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:45:00,071 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_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a9aad6636e75eb788a44e63e1649ee5df89ecae877c31a886978a8e3fdd2e8f [2023-11-21 18:45:00,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:45:00,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:45:00,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:45:00,462 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:45:00,462 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:45:00,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/recursified_nla-digbench/recursified_dijkstra.c [2023-11-21 18:45:03,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:45:03,800 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:45:03,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/sv-benchmarks/c/recursified_nla-digbench/recursified_dijkstra.c [2023-11-21 18:45:03,811 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/data/650d6fc46/5659846eb45d48e8845de56e8e4f40a2/FLAG927817e07 [2023-11-21 18:45:03,826 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/data/650d6fc46/5659846eb45d48e8845de56e8e4f40a2 [2023-11-21 18:45:03,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:45:03,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:45:03,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:45:03,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:45:03,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:45:03,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:45:03" (1/1) ... [2023-11-21 18:45:03,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26efc3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:03, skipping insertion in model container [2023-11-21 18:45:03,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:45:03" (1/1) ... [2023-11-21 18:45:03,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:45:04,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:45:04,088 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:45:04,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:45:04,155 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:45:04,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04 WrapperNode [2023-11-21 18:45:04,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:45:04,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:45:04,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:45:04,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:45:04,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,216 INFO L138 Inliner]: procedures = 17, calls = 172, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 185 [2023-11-21 18:45:04,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:45:04,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:45:04,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:45:04,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:45:04,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:45:04,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:45:04,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:45:04,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:45:04,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:45:04" (1/1) ... [2023-11-21 18:45:04,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:45:04,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:45:04,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:45:04,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7ac1193-8fde-48b4-9f00-e7c1492db491/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:45:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:45:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_28_to_32_0 [2023-11-21 18:45:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_28_to_32_0 [2023-11-21 18:45:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:45:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:45:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:45:04,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:45:04,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:45:04,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:45:04,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:45:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:45:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_36_to_52_0 [2023-11-21 18:45:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_36_to_52_0 [2023-11-21 18:45:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:45:04,576 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:45:04,579 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:45:06,305 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:45:06,345 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:45:06,345 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:45:06,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:45:06 BoogieIcfgContainer [2023-11-21 18:45:06,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:45:06,348 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:45:06,348 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:45:06,359 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:45:06,359 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:45:06" (1/1) ... [2023-11-21 18:45:06,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:45:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:06,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 554 states and 568 transitions. [2023-11-21 18:45:06,445 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 568 transitions. [2023-11-21 18:45:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:45:06,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:06,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:07,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 558 states and 574 transitions. [2023-11-21 18:45:07,705 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 574 transitions. [2023-11-21 18:45:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:45:07,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:07,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:08,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:08,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:08,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 561 states and 579 transitions. [2023-11-21 18:45:08,428 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 579 transitions. [2023-11-21 18:45:08,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:45:08,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:08,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 568 states and 596 transitions. [2023-11-21 18:45:10,244 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 596 transitions. [2023-11-21 18:45:10,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:45:10,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:10,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:10,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:11,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:11,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 569 states and 597 transitions. [2023-11-21 18:45:11,359 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 597 transitions. [2023-11-21 18:45:11,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:45:11,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:11,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:11,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:12,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:12,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 575 states and 610 transitions. [2023-11-21 18:45:12,887 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 610 transitions. [2023-11-21 18:45:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:45:12,888 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:12,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:15,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 581 states and 623 transitions. [2023-11-21 18:45:15,719 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 623 transitions. [2023-11-21 18:45:15,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:45:15,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:15,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:18,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:18,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 587 states and 638 transitions. [2023-11-21 18:45:18,361 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 638 transitions. [2023-11-21 18:45:18,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:45:18,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:18,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:18,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:19,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:19,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 589 states and 642 transitions. [2023-11-21 18:45:19,106 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 642 transitions. [2023-11-21 18:45:19,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 18:45:19,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:19,945 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:22,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 596 states and 657 transitions. [2023-11-21 18:45:22,517 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 657 transitions. [2023-11-21 18:45:22,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:45:22,519 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:22,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:22,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-21 18:45:22,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:45:22,838 INFO L349 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2023-11-21 18:45:22,839 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2023-11-21 18:45:22,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:22,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:22,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:22,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 86 [2023-11-21 18:45:22,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:22,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:22,913 INFO L349 Elim1Store]: treesize reduction 54, result has 21.7 percent of original size [2023-11-21 18:45:22,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 39 [2023-11-21 18:45:23,051 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:45:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 603 states and 685 transitions. [2023-11-21 18:45:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 685 transitions. [2023-11-21 18:45:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:45:25,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:25,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:26,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:45:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:30,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 609 states and 726 transitions. [2023-11-21 18:45:30,208 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 726 transitions. [2023-11-21 18:45:30,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:45:30,215 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:30,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:45:36,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 615 states and 744 transitions. [2023-11-21 18:45:36,214 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 744 transitions. [2023-11-21 18:45:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:45:36,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:36,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:45:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:45:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 615 states and 743 transitions. [2023-11-21 18:45:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 743 transitions. [2023-11-21 18:45:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:45:37,626 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:45:37,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:45:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:45:37,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-21 18:45:37,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:45:37,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:37,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:37,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:38,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:38,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:38,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:45:38,298 INFO L224 Elim1Store]: Index analysis took 188 ms