./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.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_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/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_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/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_67497dba-145d-4fdd-951f-0375a9971870/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 eb7e704db84b45f8c7f1cb386fc610e1107f57c6e67c0a3b2af510d7426cfd4f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:37:25,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:37:25,481 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:37:25,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:37:25,493 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:37:25,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:37:25,537 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:37:25,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:37:25,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:37:25,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:37:25,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:37:25,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:37:25,548 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:37:25,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:37:25,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:37:25,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:37:25,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:37:25,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:37:25,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:37:25,553 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:37:25,554 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:37:25,555 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:37:25,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:37:25,556 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:37:25,557 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:37:25,557 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:37:25,558 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:37:25,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:37:25,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:37:25,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:37:25,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:37:25,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:37:25,562 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:37:25,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:37:25,563 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:37:25,563 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_67497dba-145d-4fdd-951f-0375a9971870/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb7e704db84b45f8c7f1cb386fc610e1107f57c6e67c0a3b2af510d7426cfd4f [2023-11-21 18:37:25,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:37:25,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:37:25,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:37:25,947 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:37:25,947 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:37:25,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c [2023-11-21 18:37:29,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:37:29,551 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:37:29,552 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c [2023-11-21 18:37:29,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/data/b9c9e3e55/2187308fee3c40998d95892f273c6e3a/FLAG1f03fa98d [2023-11-21 18:37:29,581 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/data/b9c9e3e55/2187308fee3c40998d95892f273c6e3a [2023-11-21 18:37:29,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:37:29,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:37:29,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:37:29,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:37:29,594 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:37:29,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9d53a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29, skipping insertion in model container [2023-11-21 18:37:29,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,623 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:37:29,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:37:29,828 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:37:29,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:37:29,876 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:37:29,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29 WrapperNode [2023-11-21 18:37:29,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:37:29,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:37:29,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:37:29,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:37:29,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,925 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-11-21 18:37:29,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:37:29,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:37:29,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:37:29,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:37:29,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:37:29,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:37:29,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:37:29,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:37:29,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:29" (1/1) ... [2023-11-21 18:37:29,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:37:30,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:37:30,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:37:30,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:37:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:37:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:37:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:37:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:37:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:37:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:37:30,139 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:37:30,142 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:37:30,430 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:37:30,531 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:37:30,531 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:37:30,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:30 BoogieIcfgContainer [2023-11-21 18:37:30,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:37:30,546 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:37:30,546 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:37:30,559 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:37:30,559 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:30" (1/1) ... [2023-11-21 18:37:30,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:37:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:30,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2023-11-21 18:37:30,664 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2023-11-21 18:37:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:37:30,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:30,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:31,035 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 18:37:31,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:31,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-11-21 18:37:31,101 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-11-21 18:37:31,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:37:31,101 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:31,177 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 18:37:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 44 transitions. [2023-11-21 18:37:31,205 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2023-11-21 18:37:31,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:37:31,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:31,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:31,283 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 18:37:31,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:31,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2023-11-21 18:37:31,310 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-11-21 18:37:31,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:37:31,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:31,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:31,549 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 18:37:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2023-11-21 18:37:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2023-11-21 18:37:31,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:37:31,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:31,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2023-11-21 18:37:31,971 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2023-11-21 18:37:31,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:37:31,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:31,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:32,171 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 18:37:32,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2023-11-21 18:37:32,549 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2023-11-21 18:37:32,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:37:32,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:32,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:32,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 44 states and 64 transitions. [2023-11-21 18:37:32,878 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2023-11-21 18:37:32,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:37:32,884 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:32,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:32,942 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 18:37:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 45 states and 67 transitions. [2023-11-21 18:37:32,980 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2023-11-21 18:37:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:37:32,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:32,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:33,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:33,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 47 states and 68 transitions. [2023-11-21 18:37:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2023-11-21 18:37:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:37:33,323 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:33,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:33,462 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 18:37:33,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:33,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 51 states and 76 transitions. [2023-11-21 18:37:33,822 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2023-11-21 18:37:33,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:37:33,823 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:33,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:34,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 54 states and 79 transitions. [2023-11-21 18:37:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2023-11-21 18:37:34,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 18:37:34,009 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:34,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:34,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:34,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 55 states and 83 transitions. [2023-11-21 18:37:34,118 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 83 transitions. [2023-11-21 18:37:34,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 18:37:34,119 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:34,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:34,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:34,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 55 states and 80 transitions. [2023-11-21 18:37:34,459 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2023-11-21 18:37:34,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:37:34,460 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:34,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:34,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 59 states and 88 transitions. [2023-11-21 18:37:34,996 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 88 transitions. [2023-11-21 18:37:34,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:37:34,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:34,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:35,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:35,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 62 states and 91 transitions. [2023-11-21 18:37:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2023-11-21 18:37:35,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:37:35,281 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:35,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 63 states and 96 transitions. [2023-11-21 18:37:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 96 transitions. [2023-11-21 18:37:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:37:35,416 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:35,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:35,704 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:35,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:35,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 63 states and 92 transitions. [2023-11-21 18:37:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2023-11-21 18:37:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 18:37:35,914 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:35,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:36,115 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:36,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 67 states and 100 transitions. [2023-11-21 18:37:36,654 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-21 18:37:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 18:37:36,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:36,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:36,788 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:36,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2023-11-21 18:37:36,958 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2023-11-21 18:37:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:37:36,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:36,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:37,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:37:37,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-21 18:37:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 83 states and 132 transitions. [2023-11-21 18:37:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 132 transitions. [2023-11-21 18:37:38,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:37:38,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:38,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:38,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:37:38,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-21 18:37:38,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:38,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 93 states and 154 transitions. [2023-11-21 18:37:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 154 transitions. [2023-11-21 18:37:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:37:38,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:38,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:38,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 94 states and 154 transitions. [2023-11-21 18:37:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 154 transitions. [2023-11-21 18:37:38,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:37:38,769 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:38,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:39,118 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 88 states and 139 transitions. [2023-11-21 18:37:39,313 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 139 transitions. [2023-11-21 18:37:39,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:37:39,314 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:39,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:40,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:40,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 91 states and 144 transitions. [2023-11-21 18:37:40,048 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 144 transitions. [2023-11-21 18:37:40,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:37:40,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:40,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:40,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:40,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 90 states and 143 transitions. [2023-11-21 18:37:40,391 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2023-11-21 18:37:40,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-21 18:37:40,392 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:40,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:40,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 18:37:40,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-21 18:37:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 100 states and 165 transitions. [2023-11-21 18:37:40,756 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 165 transitions. [2023-11-21 18:37:40,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:37:40,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:40,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-21 18:37:41,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:41,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 88 states and 137 transitions. [2023-11-21 18:37:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 137 transitions. [2023-11-21 18:37:41,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 18:37:41,277 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:41,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:42,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 91 states and 141 transitions. [2023-11-21 18:37:42,208 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 141 transitions. [2023-11-21 18:37:42,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 18:37:42,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:42,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:42,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 18:37:42,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:42,369 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-21 18:37:42,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:42,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 101 states and 163 transitions. [2023-11-21 18:37:42,580 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 163 transitions. [2023-11-21 18:37:42,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-21 18:37:42,581 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:42,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:42,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 18:37:42,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-21 18:37:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:44,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 114 states and 190 transitions. [2023-11-21 18:37:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 190 transitions. [2023-11-21 18:37:44,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-21 18:37:44,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:44,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:44,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 18:37:44,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:45,341 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 118 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-21 18:37:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:45,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 103 states and 171 transitions. [2023-11-21 18:37:45,655 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 171 transitions. [2023-11-21 18:37:45,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:37:45,656 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2023-11-21 18:37:45,669 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-21 18:37:45,893 INFO L560 CodeCheckObserver]: Invariant with dag size 24 [2023-11-21 18:37:45,904 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:37:45,904 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:37:45,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:37:45 ImpRootNode [2023-11-21 18:37:45,909 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:37:45,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:37:45,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:37:45,910 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:37:45,911 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:30" (3/4) ... [2023-11-21 18:37:45,915 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:37:45,919 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-21 18:37:45,927 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-21 18:37:45,933 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 18:37:45,933 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 18:37:45,934 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:37:46,087 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:37:46,088 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:37:46,088 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:37:46,089 INFO L158 Benchmark]: Toolchain (without parser) took 16503.18ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 108.0MB in the beginning and 120.4MB in the end (delta: -12.5MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2023-11-21 18:37:46,090 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:37:46,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.02ms. Allocated memory is still 155.2MB. Free memory was 107.6MB in the beginning and 96.2MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:37:46,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.22ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:37:46,091 INFO L158 Benchmark]: Boogie Preprocessor took 33.76ms. Allocated memory is still 155.2MB. Free memory was 94.1MB in the beginning and 93.3MB in the end (delta: 833.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:37:46,091 INFO L158 Benchmark]: RCFGBuilder took 583.24ms. Allocated memory is still 155.2MB. Free memory was 92.9MB in the beginning and 74.9MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:37:46,092 INFO L158 Benchmark]: CodeCheck took 15363.91ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 74.9MB in the beginning and 125.6MB in the end (delta: -50.7MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-11-21 18:37:46,092 INFO L158 Benchmark]: Witness Printer took 178.19ms. Allocated memory is still 237.0MB. Free memory was 125.6MB in the beginning and 120.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:37:46,095 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 2 procedures, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 15.1s, OverallIterations: 32, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2860 SdHoareTripleChecker+Valid, 15.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2386 mSDsluCounter, 2270 SdHoareTripleChecker+Invalid, 13.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1422 mSDsCounter, 2614 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8337 IncrementalHoareTripleChecker+Invalid, 10951 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2614 mSolverCounterUnsat, 848 mSDtfsCounter, 8337 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6003 GetRequests, 5415 SyntacticMatches, 408 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21005 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 673 ConstructedInterpolants, 0 QuantifiedInterpolants, 2051 SizeOfPredicates, 45 NumberOfNonLiveVariables, 780 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 31 InterpolantComputations, 7 PerfectInterpolantSequences, 469/970 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((counter <= 1) && (1 <= counter)) || ((counter <= 3) && (2 < counter))) || ((counter <= 5) && (4 < counter))) || (counter == 0)) || ((1 < counter) && (counter <= 2))) || ((counter <= 4) && (3 < counter))) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.02ms. Allocated memory is still 155.2MB. Free memory was 107.6MB in the beginning and 96.2MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.22ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 94.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.76ms. Allocated memory is still 155.2MB. Free memory was 94.1MB in the beginning and 93.3MB in the end (delta: 833.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 583.24ms. Allocated memory is still 155.2MB. Free memory was 92.9MB in the beginning and 74.9MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 15363.91ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 74.9MB in the beginning and 125.6MB in the end (delta: -50.7MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Witness Printer took 178.19ms. Allocated memory is still 237.0MB. Free memory was 125.6MB in the beginning and 120.4MB 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 18:37:46,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67497dba-145d-4fdd-951f-0375a9971870/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE