./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ab6b58208d0c243ef581620bcab9aae54e201e00d3505f3320b182de5e7ff75 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:12:48,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:12:48,759 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:12:48,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:12:48,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:12:48,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:12:48,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:12:48,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:12:48,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:12:48,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:12:48,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:12:48,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:12:48,815 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:12:48,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:12:48,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:12:48,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:12:48,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:12:48,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:12:48,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:12:48,820 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:12:48,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:12:48,821 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:12:48,821 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:12:48,822 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:12:48,822 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:12:48,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:12:48,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:12:48,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:12:48,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:12:48,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:12:48,826 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:12:48,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:12:48,826 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:12:48,827 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_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ab6b58208d0c243ef581620bcab9aae54e201e00d3505f3320b182de5e7ff75 [2023-11-24 22:12:49,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:12:49,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:12:49,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:12:49,199 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:12:49,199 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:12:49,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c [2023-11-24 22:12:52,217 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:12:52,424 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:12:52,425 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c [2023-11-24 22:12:52,433 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/data/4bf813035/1d6bc530d5774ad4ab398e29a278b103/FLAGc03166660 [2023-11-24 22:12:52,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/data/4bf813035/1d6bc530d5774ad4ab398e29a278b103 [2023-11-24 22:12:52,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:12:52,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:12:52,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:12:52,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:12:52,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:12:52,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:12:52" (1/1) ... [2023-11-24 22:12:52,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a2aabb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:52, skipping insertion in model container [2023-11-24 22:12:52,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:12:52" (1/1) ... [2023-11-24 22:12:52,852 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:12:53,033 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c[526,539] [2023-11-24 22:12:53,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:12:53,063 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:12:53,075 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound2.c[526,539] [2023-11-24 22:12:53,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:12:53,098 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:12:53,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53 WrapperNode [2023-11-24 22:12:53,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:12:53,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:12:53,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:12:53,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:12:53,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,136 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2023-11-24 22:12:53,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:12:53,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:12:53,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:12:53,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:12:53,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:12:53,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:12:53,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:12:53,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:12:53,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:12:53,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:12:53,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:12:53,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:12:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:12:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:12:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:12:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:12:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:12:53,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:12:53,302 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:12:53,304 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:12:53,485 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:12:53,526 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:12:53,526 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:12:53,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:12:53 BoogieIcfgContainer [2023-11-24 22:12:53,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:12:53,529 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:12:53,529 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:12:53,540 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:12:53,540 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:12:53" (1/1) ... [2023-11-24 22:12:53,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:12:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2023-11-24 22:12:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2023-11-24 22:12:53,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:12:53,604 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:53,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:53,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:12:53,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:12:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:12:53,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:53,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2023-11-24 22:12:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2023-11-24 22:12:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:12:53,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:53,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:12:54,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2023-11-24 22:12:54,281 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2023-11-24 22:12:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:12:54,289 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:54,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:54,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:12:54,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:12:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:12:54,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2023-11-24 22:12:54,629 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2023-11-24 22:12:54,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:12:54,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:54,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:12:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2023-11-24 22:12:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2023-11-24 22:12:55,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 22:12:55,169 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:55,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:55,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 22:12:55,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:12:55,489 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:12:56,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:56,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2023-11-24 22:12:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2023-11-24 22:12:56,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 22:12:56,398 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:56,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:56,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:12:56,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:12:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:12:56,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:56,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 71 transitions. [2023-11-24 22:12:56,762 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2023-11-24 22:12:56,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 22:12:56,768 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:56,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:56,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:12:56,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:12:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:12:58,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 52 states and 105 transitions. [2023-11-24 22:12:58,216 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2023-11-24 22:12:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-24 22:12:58,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:58,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:58,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:12:58,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:12:58,357 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:12:58,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:58,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 54 states and 107 transitions. [2023-11-24 22:12:58,817 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 107 transitions. [2023-11-24 22:12:58,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 22:12:58,819 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:58,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:58,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:12:58,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:12:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-24 22:12:59,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 59 states and 121 transitions. [2023-11-24 22:12:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 121 transitions. [2023-11-24 22:12:59,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 22:12:59,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:59,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:59,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 22:12:59,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:12:59,964 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-24 22:13:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:00,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 61 states and 122 transitions. [2023-11-24 22:13:00,387 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 122 transitions. [2023-11-24 22:13:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 22:13:00,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:00,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:00,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-24 22:13:00,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-24 22:13:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:02,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 67 states and 142 transitions. [2023-11-24 22:13:02,395 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 142 transitions. [2023-11-24 22:13:02,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 22:13:02,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:02,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:02,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-24 22:13:02,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-24 22:13:03,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:03,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 69 states and 143 transitions. [2023-11-24 22:13:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 143 transitions. [2023-11-24 22:13:03,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-24 22:13:03,179 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:03,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:03,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:13:03,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:03,315 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-24 22:13:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:03,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 72 states and 156 transitions. [2023-11-24 22:13:03,534 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 156 transitions. [2023-11-24 22:13:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-24 22:13:03,536 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:03,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:03,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:13:03,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:03,669 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-24 22:13:04,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:04,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 77 states and 170 transitions. [2023-11-24 22:13:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 170 transitions. [2023-11-24 22:13:04,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 22:13:04,974 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:04,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:05,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:13:05,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-24 22:13:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 79 states and 177 transitions. [2023-11-24 22:13:05,686 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 177 transitions. [2023-11-24 22:13:05,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 22:13:05,688 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:05,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:05,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 22:13:05,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-24 22:13:09,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:09,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 93 states and 237 transitions. [2023-11-24 22:13:09,311 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 237 transitions. [2023-11-24 22:13:09,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 22:13:09,312 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:09,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:09,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:13:09,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-24 22:13:09,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:09,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 93 states and 236 transitions. [2023-11-24 22:13:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 236 transitions. [2023-11-24 22:13:09,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 22:13:09,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:09,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:09,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 22:13:09,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:10,046 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-24 22:13:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 61 states and 144 transitions. [2023-11-24 22:13:10,386 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 144 transitions. [2023-11-24 22:13:10,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-24 22:13:10,387 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:10,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:10,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:13:10,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:10,689 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-24 22:13:11,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:11,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 47 states and 86 transitions. [2023-11-24 22:13:11,283 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 86 transitions. [2023-11-24 22:13:11,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-24 22:13:11,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:11,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:11,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-24 22:13:11,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:13:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-24 22:13:11,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:11,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 44 states and 73 transitions. [2023-11-24 22:13:11,824 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2023-11-24 22:13:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 22:13:11,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:11,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:13:11,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:13:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:13:11,958 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2023-11-24 22:13:11,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-24 22:13:11,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-24 22:13:12,001 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-24 22:13:12,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:13:12 ImpRootNode [2023-11-24 22:13:12,008 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:13:12,009 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:13:12,009 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:13:12,009 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:13:12,010 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:12:53" (3/4) ... [2023-11-24 22:13:12,011 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 22:13:12,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-24 22:13:12,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated [2023-11-24 22:13:12,022 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-24 22:13:12,118 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:13:12,118 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:13:12,119 INFO L158 Benchmark]: Toolchain (without parser) took 19310.30ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 126.1MB in the beginning and 155.9MB in the end (delta: -29.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,120 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:13:12,120 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.72ms. Allocated memory is still 167.8MB. Free memory was 125.7MB in the beginning and 114.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.06ms. Allocated memory is still 167.8MB. Free memory was 114.7MB in the beginning and 113.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,121 INFO L158 Benchmark]: Boogie Preprocessor took 24.18ms. Allocated memory is still 167.8MB. Free memory was 113.1MB in the beginning and 112.1MB in the end (delta: 939.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:13:12,122 INFO L158 Benchmark]: RCFGBuilder took 366.27ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 99.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,122 INFO L158 Benchmark]: CodeCheck took 18478.98ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 99.3MB in the beginning and 159.1MB in the end (delta: -59.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:13:12,123 INFO L158 Benchmark]: Witness Printer took 109.48ms. Allocated memory is still 201.3MB. Free memory was 159.1MB in the beginning and 155.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,125 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.4s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1734 SdHoareTripleChecker+Valid, 13.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 811 mSDsluCounter, 2294 SdHoareTripleChecker+Invalid, 11.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 909 mSDsCounter, 2047 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6337 IncrementalHoareTripleChecker+Invalid, 8384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2047 mSolverCounterUnsat, 1385 mSDtfsCounter, 6337 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6177 GetRequests, 5754 SyntacticMatches, 167 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31007 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 641 NumberOfCodeBlocks, 641 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 573 ConstructedInterpolants, 0 QuantifiedInterpolants, 1632 SizeOfPredicates, 30 NumberOfNonLiveVariables, 2041 ConjunctsInSsa, 189 ConjunctsInUnsatCore, 20 InterpolantComputations, 11 PerfectInterpolantSequences, 740/817 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 - CounterExampleResult [Line: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] int A, B; [L25] int r, d, p, q; [L26] A = __VERIFIER_nondet_int() [L27] B = 1 [L29] r = A [L30] d = B [L31] p = 1 [L32] q = 0 VAL [A=1, B=1, counter=0, d=1, p=1, q=0, r=1] [L34] EXPR counter++ VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L34] COND TRUE counter++<2 [L35] CALL __VERIFIER_assert(q == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(q == 0) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L36] CALL __VERIFIER_assert(r == A) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(r == A) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L37] CALL __VERIFIER_assert(d == B * p) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L37] RET __VERIFIER_assert(d == B * p) VAL [A=1, B=1, counter=1, d=1, p=1, q=0, r=1] [L38] COND FALSE !(!(r >= d)) [L40] d = 2 * d [L41] p = 2 * p VAL [A=1, B=1, counter=1, d=2, p=2, q=0, r=1] [L34] EXPR counter++ VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L34] COND TRUE counter++<2 [L35] CALL __VERIFIER_assert(q == 0) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L35] RET __VERIFIER_assert(q == 0) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L36] CALL __VERIFIER_assert(r == A) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L36] RET __VERIFIER_assert(r == A) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L37] CALL __VERIFIER_assert(d == B * p) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L37] RET __VERIFIER_assert(d == B * p) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L38] COND TRUE !(r >= d) VAL [A=1, B=1, counter=2, d=2, p=2, q=0, r=1] [L44] EXPR counter++ VAL [A=1, B=1, counter=3, d=2, p=2, q=0, r=1] [L44] COND FALSE !(counter++<2) [L58] CALL __VERIFIER_assert(A == d*q + r) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L58] RET __VERIFIER_assert(A == d*q + r) VAL [A=1, B=1, counter=3, d=2, p=2, q=0, r=1] [L59] CALL __VERIFIER_assert(B == d) VAL [\old(cond)=0, counter=3] [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=3] [L17] reach_error() VAL [\old(cond)=0, cond=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.72ms. Allocated memory is still 167.8MB. Free memory was 125.7MB in the beginning and 114.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.06ms. Allocated memory is still 167.8MB. Free memory was 114.7MB in the beginning and 113.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.18ms. Allocated memory is still 167.8MB. Free memory was 113.1MB in the beginning and 112.1MB in the end (delta: 939.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 366.27ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 99.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 18478.98ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 99.3MB in the beginning and 159.1MB in the end (delta: -59.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 109.48ms. Allocated memory is still 201.3MB. Free memory was 159.1MB in the beginning and 155.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-24 22:13:12,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a78143a-523e-471c-981c-66e83796aa80/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE