./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL --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 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:33:53,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:33:53,947 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 02:33:53,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:33:53,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:33:53,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:33:53,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:33:53,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:33:53,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:33:53,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:33:53,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:33:53,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:33:53,982 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:33:53,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:33:53,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:33:53,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:33:53,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:33:53,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:33:53,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:33:53,986 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:33:53,986 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:33:53,987 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:33:53,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:33:53,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:33:53,989 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:33:53,989 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:33:53,990 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:33:53,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:33:53,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:33:53,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:33:53,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:33:53,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:33:53,996 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:33:53,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:33:53,997 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:33:53,997 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_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2023-11-19 02:33:54,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:33:54,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:33:54,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:33:54,302 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:33:54,302 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:33:54,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2023-11-19 02:33:57,392 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:33:57,699 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:33:57,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2023-11-19 02:33:57,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/data/dd5f41c4d/901743a96b9d4d0d903397ab7b0f09c8/FLAGba9448b96 [2023-11-19 02:33:57,749 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/data/dd5f41c4d/901743a96b9d4d0d903397ab7b0f09c8 [2023-11-19 02:33:57,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:33:57,758 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:33:57,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:33:57,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:33:57,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:33:57,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:57" (1/1) ... [2023-11-19 02:33:57,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef38ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:57, skipping insertion in model container [2023-11-19 02:33:57,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:57" (1/1) ... [2023-11-19 02:33:57,847 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:33:58,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:33:58,319 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:33:58,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:33:58,461 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:33:58,468 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:33:58,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58 WrapperNode [2023-11-19 02:33:58,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:33:58,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:33:58,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:33:58,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:33:58,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,551 INFO L138 Inliner]: procedures = 164, calls = 73, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 52 [2023-11-19 02:33:58,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:33:58,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:33:58,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:33:58,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:33:58,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:33:58,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:33:58,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:33:58,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:33:58,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:58" (1/1) ... [2023-11-19 02:33:58,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:33:58,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:33:58,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:33:58,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:33:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 02:33:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 02:33:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:33:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 02:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 02:33:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:33:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 02:33:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:33:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:33:58,802 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:33:58,804 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:33:58,955 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:33:59,016 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:33:59,017 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 02:33:59,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:33:59 BoogieIcfgContainer [2023-11-19 02:33:59,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:33:59,025 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:33:59,025 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:33:59,034 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:33:59,034 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:33:59" (1/1) ... [2023-11-19 02:33:59,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:33:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:33:59,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2023-11-19 02:33:59,093 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-19 02:33:59,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:33:59,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:33:59,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:33:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:33:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:33:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:33:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 30 states and 38 transitions. [2023-11-19 02:33:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2023-11-19 02:33:59,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:33:59,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:33:59,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:33:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:33:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:33:59,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:33:59,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 31 states and 39 transitions. [2023-11-19 02:33:59,728 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2023-11-19 02:33:59,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 02:33:59,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:33:59,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:33:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:33:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:33:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:33:59,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2023-11-19 02:33:59,914 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2023-11-19 02:33:59,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 02:33:59,915 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:33:59,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:33:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:34:00,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2023-11-19 02:34:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-11-19 02:34:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 02:34:00,073 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:00,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:00,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:34:00,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 34 states and 43 transitions. [2023-11-19 02:34:00,165 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2023-11-19 02:34:00,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 02:34:00,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:00,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:00,282 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:34:00,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:00,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 39 states and 52 transitions. [2023-11-19 02:34:00,394 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2023-11-19 02:34:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 02:34:00,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:00,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:00,475 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:34:00,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 40 states and 53 transitions. [2023-11-19 02:34:00,491 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2023-11-19 02:34:00,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 02:34:00,492 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:00,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:34:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 46 states and 62 transitions. [2023-11-19 02:34:00,788 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2023-11-19 02:34:00,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 02:34:00,789 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:00,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:34:00,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 48 states and 64 transitions. [2023-11-19 02:34:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2023-11-19 02:34:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 02:34:00,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:00,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:01,012 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 02:34:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 47 states and 63 transitions. [2023-11-19 02:34:01,043 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2023-11-19 02:34:01,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 02:34:01,045 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:01,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:01,208 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:34:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 66 transitions. [2023-11-19 02:34:01,418 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2023-11-19 02:34:01,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 02:34:01,421 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:01,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:01,601 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 02:34:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 42 states and 53 transitions. [2023-11-19 02:34:01,646 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-11-19 02:34:01,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 02:34:01,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 02:34:02,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 48 states and 62 transitions. [2023-11-19 02:34:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2023-11-19 02:34:02,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 02:34:02,113 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:02,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 02:34:02,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:02,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 50 states and 65 transitions. [2023-11-19 02:34:02,296 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2023-11-19 02:34:02,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 02:34:02,297 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:02,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 02:34:02,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:02,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 55 states and 70 transitions. [2023-11-19 02:34:02,797 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2023-11-19 02:34:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 02:34:02,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:02,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:03,060 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 02:34:03,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:03,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 61 states and 79 transitions. [2023-11-19 02:34:03,300 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2023-11-19 02:34:03,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 02:34:03,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:03,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 02:34:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:03,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 66 states and 84 transitions. [2023-11-19 02:34:03,935 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2023-11-19 02:34:03,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 02:34:03,936 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:03,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:04,224 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 02:34:04,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:04,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 72 states and 93 transitions. [2023-11-19 02:34:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2023-11-19 02:34:04,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 02:34:04,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:04,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 02:34:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:05,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 77 states and 98 transitions. [2023-11-19 02:34:05,260 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2023-11-19 02:34:05,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 02:34:05,260 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:05,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:05,612 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-19 02:34:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 83 states and 107 transitions. [2023-11-19 02:34:05,985 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2023-11-19 02:34:05,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 02:34:05,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:05,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-19 02:34:06,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:06,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 88 states and 112 transitions. [2023-11-19 02:34:06,863 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 112 transitions. [2023-11-19 02:34:06,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 02:34:06,864 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:06,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-19 02:34:07,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:07,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 94 states and 121 transitions. [2023-11-19 02:34:07,682 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2023-11-19 02:34:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 02:34:07,682 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:07,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-19 02:34:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 99 states and 126 transitions. [2023-11-19 02:34:08,694 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2023-11-19 02:34:08,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 02:34:08,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:08,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-19 02:34:09,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:09,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 105 states and 135 transitions. [2023-11-19 02:34:09,634 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 135 transitions. [2023-11-19 02:34:09,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 02:34:09,635 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:09,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:10,114 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-19 02:34:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 110 states and 140 transitions. [2023-11-19 02:34:10,742 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2023-11-19 02:34:10,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 02:34:10,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:10,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 02:34:11,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 116 states and 149 transitions. [2023-11-19 02:34:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 149 transitions. [2023-11-19 02:34:11,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 02:34:11,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:11,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 02:34:13,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:13,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 121 states and 154 transitions. [2023-11-19 02:34:13,063 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 154 transitions. [2023-11-19 02:34:13,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 02:34:13,064 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:13,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-19 02:34:14,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 127 states and 163 transitions. [2023-11-19 02:34:14,212 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2023-11-19 02:34:14,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 02:34:14,213 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:14,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-19 02:34:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 132 states and 168 transitions. [2023-11-19 02:34:15,590 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2023-11-19 02:34:15,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 02:34:15,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:34:15,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:34:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:34:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 275 proven. 55 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-19 02:34:28,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:34:28,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 117 states and 148 transitions. [2023-11-19 02:34:28,482 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 148 transitions. [2023-11-19 02:34:28,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:34:28,483 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2023-11-19 02:34:28,492 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-19 02:34:28,815 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:34:28,820 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:34:28,820 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:34:28,820 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:34:28,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:34:28 ImpRootNode [2023-11-19 02:34:28,821 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:34:28,821 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:34:28,821 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:34:28,822 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:34:28,822 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:33:59" (3/4) ... [2023-11-19 02:34:28,824 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:34:28,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-19 02:34:28,835 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 02:34:28,836 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 02:34:28,836 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 02:34:28,958 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:34:28,961 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:34:28,961 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:34:28,967 INFO L158 Benchmark]: Toolchain (without parser) took 31207.88ms. Allocated memory was 132.1MB in the beginning and 471.9MB in the end (delta: 339.7MB). Free memory was 85.6MB in the beginning and 346.9MB in the end (delta: -261.3MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. [2023-11-19 02:34:28,968 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:34:28,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 726.05ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 85.3MB in the beginning and 142.2MB in the end (delta: -56.9MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2023-11-19 02:34:28,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.75ms. Allocated memory is still 172.0MB. Free memory was 142.2MB in the beginning and 142.9MB in the end (delta: -694.2kB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2023-11-19 02:34:28,970 INFO L158 Benchmark]: Boogie Preprocessor took 28.16ms. Allocated memory is still 172.0MB. Free memory was 142.9MB in the beginning and 141.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:34:28,970 INFO L158 Benchmark]: RCFGBuilder took 443.24ms. Allocated memory is still 172.0MB. Free memory was 141.6MB in the beginning and 127.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 02:34:28,973 INFO L158 Benchmark]: CodeCheck took 29795.86ms. Allocated memory was 172.0MB in the beginning and 471.9MB in the end (delta: 299.9MB). Free memory was 127.6MB in the beginning and 351.1MB in the end (delta: -223.5MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2023-11-19 02:34:28,974 INFO L158 Benchmark]: Witness Printer took 143.86ms. Allocated memory is still 471.9MB. Free memory was 351.1MB in the beginning and 346.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:34:28,976 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 29.4s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2744 SdHoareTripleChecker+Valid, 10.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1981 mSDsluCounter, 2490 SdHoareTripleChecker+Invalid, 8.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1644 mSDsCounter, 2279 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6920 IncrementalHoareTripleChecker+Invalid, 9199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2279 mSolverCounterUnsat, 846 mSDtfsCounter, 6920 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8998 GetRequests, 8178 SyntacticMatches, 512 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41632 ImplicationChecksByTransitivity, 20.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 1310 NumberOfCodeBlocks, 1310 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 1280 ConstructedInterpolants, 0 QuantifiedInterpolants, 3124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 7 PerfectInterpolantSequences, 1364/3333 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: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: 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: 767]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 774]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 726.05ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 85.3MB in the beginning and 142.2MB in the end (delta: -56.9MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.75ms. Allocated memory is still 172.0MB. Free memory was 142.2MB in the beginning and 142.9MB in the end (delta: -694.2kB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.16ms. Allocated memory is still 172.0MB. Free memory was 142.9MB in the beginning and 141.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 443.24ms. Allocated memory is still 172.0MB. Free memory was 141.6MB in the beginning and 127.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 29795.86ms. Allocated memory was 172.0MB in the beginning and 471.9MB in the end (delta: 299.9MB). Free memory was 127.6MB in the beginning and 351.1MB in the end (delta: -223.5MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. * Witness Printer took 143.86ms. Allocated memory is still 471.9MB. Free memory was 351.1MB in the beginning and 346.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:34:29,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050aae94-e411-43b4-a332-26a0011b8905/bin/ukojak-verify-G8NBE6pJGL/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