./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound2.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_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/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_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/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_ff944b70-67ba-4297-b453-388fb41c9bf2/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 7950877d732f4800002d6a797590b13f630fa3c613f928d7858c74ba3c97d345 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:31:05,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:31:05,970 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:31:05,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:31:05,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:31:06,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:31:06,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:31:06,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:31:06,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:31:06,016 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:31:06,017 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:31:06,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:31:06,018 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:31:06,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:31:06,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:31:06,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:31:06,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:31:06,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:31:06,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:31:06,023 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:31:06,023 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:31:06,024 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:31:06,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:31:06,026 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:31:06,026 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:31:06,027 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:31:06,028 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:31:06,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:31:06,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:31:06,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:31:06,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:31:06,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:31:06,031 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:31:06,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:31:06,033 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:31:06,033 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_ff944b70-67ba-4297-b453-388fb41c9bf2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7950877d732f4800002d6a797590b13f630fa3c613f928d7858c74ba3c97d345 [2023-11-21 18:31:06,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:31:06,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:31:06,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:31:06,333 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:31:06,334 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:31:06,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound2.c [2023-11-21 18:31:09,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:31:09,645 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:31:09,646 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound2.c [2023-11-21 18:31:09,654 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/data/c48107ca6/98e1598dcf8247d792bc95d5e7852cd0/FLAG63dc20920 [2023-11-21 18:31:09,670 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/data/c48107ca6/98e1598dcf8247d792bc95d5e7852cd0 [2023-11-21 18:31:09,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:31:09,675 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:31:09,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:31:09,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:31:09,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:31:09,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:31:09" (1/1) ... [2023-11-21 18:31:09,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166cafb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:09, skipping insertion in model container [2023-11-21 18:31:09,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:31:09" (1/1) ... [2023-11-21 18:31:09,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:31:09,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:31:09,934 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:31:09,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:31:10,001 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:31:10,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10 WrapperNode [2023-11-21 18:31:10,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:31:10,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:31:10,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:31:10,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:31:10,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,056 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 90 [2023-11-21 18:31:10,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:31:10,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:31:10,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:31:10,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:31:10,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:31:10,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:31:10,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:31:10,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:31:10,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:31:10,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:31:10,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:31:10,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:31:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:31:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:31:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:31:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:31:10,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:31:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:31:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:31:10,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:31:10,251 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:31:10,254 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:31:10,467 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:31:10,510 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:31:10,510 INFO L308 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-21 18:31:10,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:10 BoogieIcfgContainer [2023-11-21 18:31:10,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:31:10,514 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:31:10,514 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:31:10,523 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:31:10,523 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:10" (1/1) ... [2023-11-21 18:31:10,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:31:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2023-11-21 18:31:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2023-11-21 18:31:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 18:31:10,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:10,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:11,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 40 states and 55 transitions. [2023-11-21 18:31:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-21 18:31:11,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 18:31:11,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:11,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:11,198 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:11,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:11,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 41 states and 56 transitions. [2023-11-21 18:31:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2023-11-21 18:31:11,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 18:31:11,234 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:11,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:11,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:31:11,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:11,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:11,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 48 states and 74 transitions. [2023-11-21 18:31:11,671 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 74 transitions. [2023-11-21 18:31:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:31:11,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:11,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:11,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:31:11,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:11,847 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:12,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:12,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 56 states and 93 transitions. [2023-11-21 18:31:12,124 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 93 transitions. [2023-11-21 18:31:12,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:31:12,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:12,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:12,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:31:12,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:12,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:12,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 57 states and 93 transitions. [2023-11-21 18:31:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 93 transitions. [2023-11-21 18:31:12,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:31:12,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:12,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:12,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:31:12,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:12,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 63 states and 104 transitions. [2023-11-21 18:31:12,917 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 104 transitions. [2023-11-21 18:31:12,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:31:12,927 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:12,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:12,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:31:12,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:13,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 65 states and 107 transitions. [2023-11-21 18:31:13,246 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 107 transitions. [2023-11-21 18:31:13,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 18:31:13,248 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:13,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:13,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:31:13,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:13,447 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:13,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:13,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 70 states and 121 transitions. [2023-11-21 18:31:13,922 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 121 transitions. [2023-11-21 18:31:13,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 18:31:13,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:13,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:13,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:31:13,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:14,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 73 states and 125 transitions. [2023-11-21 18:31:14,197 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 125 transitions. [2023-11-21 18:31:14,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-21 18:31:14,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:14,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:14,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:31:14,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:31:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:14,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 75 states and 127 transitions. [2023-11-21 18:31:14,621 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 127 transitions. [2023-11-21 18:31:14,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-21 18:31:14,622 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:14,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:14,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:31:14,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:14,774 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-21 18:31:14,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:14,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 75 states and 125 transitions. [2023-11-21 18:31:14,961 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 125 transitions. [2023-11-21 18:31:14,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-21 18:31:14,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:14,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:15,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 18:31:15,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:16,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:16,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 79 states and 132 transitions. [2023-11-21 18:31:16,159 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 132 transitions. [2023-11-21 18:31:16,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-21 18:31:16,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:16,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:16,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 18:31:16,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:16,340 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:16,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 83 states and 138 transitions. [2023-11-21 18:31:16,805 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 138 transitions. [2023-11-21 18:31:16,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 18:31:16,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:16,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:16,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:31:16,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 18:31:20,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:20,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 95 states and 169 transitions. [2023-11-21 18:31:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 169 transitions. [2023-11-21 18:31:20,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 18:31:20,332 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:20,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:20,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:31:20,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:22,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 103 states and 176 transitions. [2023-11-21 18:31:22,967 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 176 transitions. [2023-11-21 18:31:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 18:31:22,968 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:22,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:23,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 18:31:23,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:31:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:23,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 107 states and 183 transitions. [2023-11-21 18:31:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 183 transitions. [2023-11-21 18:31:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 18:31:23,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:23,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:23,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:31:23,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:31:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 108 states and 184 transitions. [2023-11-21 18:31:24,330 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 184 transitions. [2023-11-21 18:31:24,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 18:31:24,331 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:24,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:24,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:31:24,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-21 18:31:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 109 states and 185 transitions. [2023-11-21 18:31:24,859 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 185 transitions. [2023-11-21 18:31:24,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 18:31:24,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:24,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:24,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:31:24,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:24,978 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-21 18:31:25,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:25,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 109 states and 183 transitions. [2023-11-21 18:31:25,299 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 183 transitions. [2023-11-21 18:31:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-21 18:31:25,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:31:25,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:31:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:31:25,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:31:25,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:31:25,373 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:31:25,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:31:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 52 states and 71 transitions. [2023-11-21 18:31:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2023-11-21 18:31:25,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:31:25,674 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 21 iterations. [2023-11-21 18:31:25,683 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-21 18:31:25,887 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:31:25,891 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:31:25,891 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:31:25,891 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:31:25,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:31:25 ImpRootNode [2023-11-21 18:31:25,893 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:31:25,893 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:31:25,894 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:31:25,895 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:31:25,895 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:31:10" (3/4) ... [2023-11-21 18:31:25,900 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:31:25,904 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-21 18:31:25,904 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-21 18:31:25,911 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-21 18:31:25,911 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-21 18:31:25,912 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 18:31:25,912 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:31:25,912 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:31:26,040 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:31:26,041 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:31:26,041 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:31:26,042 INFO L158 Benchmark]: Toolchain (without parser) took 16366.70ms. Allocated memory was 159.4MB in the beginning and 245.4MB in the end (delta: 86.0MB). Free memory was 120.4MB in the beginning and 85.6MB in the end (delta: 34.8MB). Peak memory consumption was 122.4MB. Max. memory is 16.1GB. [2023-11-21 18:31:26,042 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 159.4MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:31:26,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.94ms. Allocated memory is still 159.4MB. Free memory was 120.0MB in the beginning and 108.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 18:31:26,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.92ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 107.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:31:26,043 INFO L158 Benchmark]: Boogie Preprocessor took 25.74ms. Allocated memory is still 159.4MB. Free memory was 107.4MB in the beginning and 106.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:31:26,044 INFO L158 Benchmark]: RCFGBuilder took 429.23ms. Allocated memory is still 159.4MB. Free memory was 106.3MB in the beginning and 91.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:31:26,044 INFO L158 Benchmark]: CodeCheck took 15379.39ms. Allocated memory was 159.4MB in the beginning and 245.4MB in the end (delta: 86.0MB). Free memory was 91.6MB in the beginning and 90.8MB in the end (delta: 843.1kB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2023-11-21 18:31:26,045 INFO L158 Benchmark]: Witness Printer took 147.63ms. Allocated memory is still 245.4MB. Free memory was 90.8MB in the beginning and 85.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:31:26,047 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 38 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 15.1s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2521 SdHoareTripleChecker+Valid, 10.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1359 mSDsluCounter, 2642 SdHoareTripleChecker+Invalid, 8.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1288 mSDsCounter, 1595 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5216 IncrementalHoareTripleChecker+Invalid, 6811 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1595 mSolverCounterUnsat, 1354 mSDtfsCounter, 5216 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5954 GetRequests, 5515 SyntacticMatches, 235 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19652 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 684 NumberOfCodeBlocks, 684 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 664 ConstructedInterpolants, 0 QuantifiedInterpolants, 1490 SizeOfPredicates, 55 NumberOfNonLiveVariables, 2184 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 20 InterpolantComputations, 15 PerfectInterpolantSequences, 331/352 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 159.4MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.94ms. Allocated memory is still 159.4MB. Free memory was 120.0MB in the beginning and 108.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.92ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 107.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.74ms. Allocated memory is still 159.4MB. Free memory was 107.4MB in the beginning and 106.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.23ms. Allocated memory is still 159.4MB. Free memory was 106.3MB in the beginning and 91.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 15379.39ms. Allocated memory was 159.4MB in the beginning and 245.4MB in the end (delta: 86.0MB). Free memory was 91.6MB in the beginning and 90.8MB in the end (delta: 843.1kB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. * Witness Printer took 147.63ms. Allocated memory is still 245.4MB. Free memory was 90.8MB in the beginning and 85.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:31:26,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff944b70-67ba-4297-b453-388fb41c9bf2/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE