./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bb6ea6333d2c4e133ad252fe2bcbc17b832f383e2bb5defb402851de157204c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:53,985 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:54,053 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:56:54,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:54,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:54,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:54,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:54,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:54,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:54,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:54,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:54,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:54,090 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:54,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:54,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:54,092 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:54,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:54,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:54,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:54,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:54,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:54,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:54,097 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:54,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:54,098 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:54,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:54,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:54,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:54,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:54,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:54,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:54,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:56:54,104 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:54,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:56:54,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:54,105 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:56:54,105 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:54,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:54,106 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:54,106 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bb6ea6333d2c4e133ad252fe2bcbc17b832f383e2bb5defb402851de157204c [2023-11-19 07:56:54,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:54,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:54,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:54,498 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:54,499 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:54,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c [2023-11-19 07:56:57,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:57,988 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:57,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c [2023-11-19 07:56:58,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/data/80e76ebe1/79a203a67f7f4b1887d409f4b8275315/FLAG08c306140 [2023-11-19 07:56:58,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/data/80e76ebe1/79a203a67f7f4b1887d409f4b8275315 [2023-11-19 07:56:58,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:58,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:58,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:58,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:58,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:58,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43209878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58, skipping insertion in model container [2023-11-19 07:56:58,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:58,272 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_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c[597,610] [2023-11-19 07:56:58,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:58,304 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:58,321 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_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c[597,610] [2023-11-19 07:56:58,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:58,347 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:58,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58 WrapperNode [2023-11-19 07:56:58,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:58,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:58,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:58,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:58,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,397 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2023-11-19 07:56:58,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:58,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:58,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:58,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:58,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,415 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,425 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:58,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:58,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:58,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:58,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (1/1) ... [2023-11-19 07:56:58,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:58,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:58,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:58,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:58,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:58,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:58,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:56:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:56:58,582 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:58,584 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:58,816 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:58,828 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:58,828 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:56:58,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:58 BoogieIcfgContainer [2023-11-19 07:56:58,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:58,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:58,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:58,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:58,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:58" (1/3) ... [2023-11-19 07:56:58,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd76ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:58, skipping insertion in model container [2023-11-19 07:56:58,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:58" (2/3) ... [2023-11-19 07:56:58,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd76ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:58, skipping insertion in model container [2023-11-19 07:56:58,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:58" (3/3) ... [2023-11-19 07:56:58,846 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound50.c [2023-11-19 07:56:58,868 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:58,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:56:58,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:58,946 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4685649d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:58,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:56:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:56:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:56:58,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:58,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:58,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:58,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:58,974 INFO L85 PathProgramCache]: Analyzing trace with hash 180444447, now seen corresponding path program 1 times [2023-11-19 07:56:58,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:58,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155607180] [2023-11-19 07:56:58,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:58,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:59,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:59,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541196955] [2023-11-19 07:56:59,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:59,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:59,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:59,138 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:59,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:56:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:59,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:56:59,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:59,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:59,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:59,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155607180] [2023-11-19 07:56:59,515 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:59,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541196955] [2023-11-19 07:56:59,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541196955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:59,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:59,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:56:59,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344243378] [2023-11-19 07:56:59,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:59,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:59,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:59,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:59,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:59,559 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:59,710 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2023-11-19 07:56:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:59,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:56:59,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:59,721 INFO L225 Difference]: With dead ends: 52 [2023-11-19 07:56:59,722 INFO L226 Difference]: Without dead ends: 25 [2023-11-19 07:56:59,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:56:59,729 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:59,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 62 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:59,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-19 07:56:59,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-11-19 07:56:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:56:59,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2023-11-19 07:56:59,775 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 8 [2023-11-19 07:56:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:59,776 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2023-11-19 07:56:59,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-19 07:56:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:56:59,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:59,778 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:59,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:59,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:57:00,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:00,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:00,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2080570626, now seen corresponding path program 1 times [2023-11-19 07:57:00,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:00,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69657624] [2023-11-19 07:57:00,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:00,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:00,030 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:00,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513501404] [2023-11-19 07:57:00,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:00,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:00,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:00,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:00,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:57:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 07:57:00,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:00,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:00,477 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:57:00,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:00,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69657624] [2023-11-19 07:57:00,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:00,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513501404] [2023-11-19 07:57:00,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513501404] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:00,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:00,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2023-11-19 07:57:00,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810903062] [2023-11-19 07:57:00,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:00,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:57:00,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:00,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:57:00,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:57:00,483 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:57:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:00,772 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2023-11-19 07:57:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:57:00,773 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-19 07:57:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:00,774 INFO L225 Difference]: With dead ends: 41 [2023-11-19 07:57:00,774 INFO L226 Difference]: Without dead ends: 34 [2023-11-19 07:57:00,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:57:00,776 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:00,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 78 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:57:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-19 07:57:00,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2023-11-19 07:57:00,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:00,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-11-19 07:57:00,789 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 18 [2023-11-19 07:57:00,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:00,790 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-11-19 07:57:00,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:57:00,790 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-11-19 07:57:00,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 07:57:00,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:00,792 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:00,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:01,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:01,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:01,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash 680664555, now seen corresponding path program 1 times [2023-11-19 07:57:01,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:01,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814820721] [2023-11-19 07:57:01,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:01,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:01,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:01,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693979688] [2023-11-19 07:57:01,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:01,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:01,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:01,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:01,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:57:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:01,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:01,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:01,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:01,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:01,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:01,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814820721] [2023-11-19 07:57:01,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:01,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693979688] [2023-11-19 07:57:01,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693979688] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:01,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:01,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-19 07:57:01,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18304477] [2023-11-19 07:57:01,210 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:01,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:57:01,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:57:01,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:01,214 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:57:01,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:01,315 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2023-11-19 07:57:01,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:01,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2023-11-19 07:57:01,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:01,319 INFO L225 Difference]: With dead ends: 73 [2023-11-19 07:57:01,320 INFO L226 Difference]: Without dead ends: 67 [2023-11-19 07:57:01,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:57:01,324 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 34 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:01,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 97 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:01,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-19 07:57:01,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2023-11-19 07:57:01,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:57:01,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2023-11-19 07:57:01,370 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 19 [2023-11-19 07:57:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:01,373 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2023-11-19 07:57:01,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:57:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2023-11-19 07:57:01,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:57:01,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:01,376 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:01,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:01,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:01,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:01,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:01,598 INFO L85 PathProgramCache]: Analyzing trace with hash 713886481, now seen corresponding path program 1 times [2023-11-19 07:57:01,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:01,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364369239] [2023-11-19 07:57:01,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:01,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:01,611 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:01,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183204853] [2023-11-19 07:57:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:01,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:01,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:01,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:01,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:57:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:01,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 07:57:01,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:02,118 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:57:02,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:57:02,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:02,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364369239] [2023-11-19 07:57:02,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:02,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183204853] [2023-11-19 07:57:02,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183204853] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:02,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:02,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 22 [2023-11-19 07:57:02,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321941940] [2023-11-19 07:57:02,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:02,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-19 07:57:02,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:02,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-19 07:57:02,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:57:02,838 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 22 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 19 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:57:05,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:05,638 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2023-11-19 07:57:05,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:57:05,639 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 19 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 25 [2023-11-19 07:57:05,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:05,641 INFO L225 Difference]: With dead ends: 80 [2023-11-19 07:57:05,641 INFO L226 Difference]: Without dead ends: 72 [2023-11-19 07:57:05,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=205, Invalid=917, Unknown=0, NotChecked=0, Total=1122 [2023-11-19 07:57:05,643 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 29 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:05,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 142 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 07:57:05,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-19 07:57:05,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2023-11-19 07:57:05,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 56 states have internal predecessors, (65), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:57:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2023-11-19 07:57:05,678 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 25 [2023-11-19 07:57:05,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:05,678 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2023-11-19 07:57:05,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 19 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:57:05,679 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2023-11-19 07:57:05,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 07:57:05,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:05,681 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:05,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:05,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:05,899 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:05,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:05,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2021783820, now seen corresponding path program 1 times [2023-11-19 07:57:05,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:05,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431176] [2023-11-19 07:57:05,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:05,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:05,929 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:05,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [270917021] [2023-11-19 07:57:05,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:05,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:05,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:05,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:05,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:57:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:05,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 07:57:06,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:57:06,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:06,383 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:57:06,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:06,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431176] [2023-11-19 07:57:06,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:06,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270917021] [2023-11-19 07:57:06,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270917021] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:06,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:06,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2023-11-19 07:57:06,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755437304] [2023-11-19 07:57:06,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:06,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:57:06,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:06,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:57:06,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:57:06,397 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand has 15 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 14 states have internal predecessors, (26), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:06,599 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2023-11-19 07:57:06,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:06,600 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 14 states have internal predecessors, (26), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2023-11-19 07:57:06,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:06,605 INFO L225 Difference]: With dead ends: 87 [2023-11-19 07:57:06,605 INFO L226 Difference]: Without dead ends: 81 [2023-11-19 07:57:06,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:57:06,607 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 27 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:06,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 92 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-19 07:57:06,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2023-11-19 07:57:06,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 65 states have internal predecessors, (76), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:57:06,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2023-11-19 07:57:06,654 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 35 [2023-11-19 07:57:06,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:06,655 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2023-11-19 07:57:06,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 14 states have internal predecessors, (26), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:06,656 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2023-11-19 07:57:06,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:57:06,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:06,666 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:06,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:06,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:06,887 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:06,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:06,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1410392757, now seen corresponding path program 1 times [2023-11-19 07:57:06,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:06,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687735645] [2023-11-19 07:57:06,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:06,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:06,901 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:06,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754757244] [2023-11-19 07:57:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:06,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:06,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:06,902 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:06,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:57:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:06,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-19 07:57:06,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:07,870 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 17 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:57:07,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:10,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:10,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687735645] [2023-11-19 07:57:10,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:10,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754757244] [2023-11-19 07:57:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754757244] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:10,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:57:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-19 07:57:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965157977] [2023-11-19 07:57:10,363 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:57:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:10,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:57:10,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=339, Unknown=1, NotChecked=0, Total=420 [2023-11-19 07:57:10,365 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:57:10,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:10,862 INFO L93 Difference]: Finished difference Result 115 states and 138 transitions. [2023-11-19 07:57:10,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:57:10,863 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2023-11-19 07:57:10,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:10,865 INFO L225 Difference]: With dead ends: 115 [2023-11-19 07:57:10,865 INFO L226 Difference]: Without dead ends: 91 [2023-11-19 07:57:10,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=100, Invalid=451, Unknown=1, NotChecked=0, Total=552 [2023-11-19 07:57:10,867 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:10,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 132 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-19 07:57:10,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2023-11-19 07:57:10,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 70 states have (on average 1.1571428571428573) internal successors, (81), 70 states have internal predecessors, (81), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:57:10,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2023-11-19 07:57:10,895 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 45 [2023-11-19 07:57:10,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:10,895 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2023-11-19 07:57:10,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:57:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2023-11-19 07:57:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:57:10,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:10,897 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:10,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:11,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:57:11,119 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:11,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:11,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1900020427, now seen corresponding path program 2 times [2023-11-19 07:57:11,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:11,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543220108] [2023-11-19 07:57:11,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:11,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:11,131 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:11,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122058342] [2023-11-19 07:57:11,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:57:11,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:11,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:11,133 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:11,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:57:11,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:57:11,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:11,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:11,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:11,267 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 32 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 07:57:11,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:57:11,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:11,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543220108] [2023-11-19 07:57:11,340 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:11,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122058342] [2023-11-19 07:57:11,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122058342] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:11,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:11,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-11-19 07:57:11,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683468698] [2023-11-19 07:57:11,341 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:11,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:11,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:11,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:11,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:11,347 INFO L87 Difference]: Start difference. First operand 85 states and 100 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-19 07:57:11,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:11,448 INFO L93 Difference]: Finished difference Result 120 states and 144 transitions. [2023-11-19 07:57:11,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:11,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 45 [2023-11-19 07:57:11,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:11,452 INFO L225 Difference]: With dead ends: 120 [2023-11-19 07:57:11,452 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 07:57:11,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:11,455 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:11,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 72 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:11,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 07:57:11,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2023-11-19 07:57:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 77 states have (on average 1.155844155844156) internal successors, (89), 77 states have internal predecessors, (89), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:57:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2023-11-19 07:57:11,506 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 45 [2023-11-19 07:57:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:11,507 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2023-11-19 07:57:11,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-19 07:57:11,507 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2023-11-19 07:57:11,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:57:11,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:11,510 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:11,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:11,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:57:11,732 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:11,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:11,733 INFO L85 PathProgramCache]: Analyzing trace with hash 2040569037, now seen corresponding path program 3 times [2023-11-19 07:57:11,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:11,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634715309] [2023-11-19 07:57:11,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:11,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:11,754 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:11,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384224283] [2023-11-19 07:57:11,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:57:11,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:11,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:11,759 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:11,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:57:11,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 07:57:11,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:11,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 07:57:11,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-19 07:57:12,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-19 07:57:12,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:12,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634715309] [2023-11-19 07:57:12,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:12,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384224283] [2023-11-19 07:57:12,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384224283] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:12,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:12,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2023-11-19 07:57:12,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689276821] [2023-11-19 07:57:12,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:12,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 07:57:12,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:12,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 07:57:12,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:57:12,469 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 20 states, 16 states have (on average 2.125) internal successors, (34), 17 states have internal predecessors, (34), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:13,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:13,061 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2023-11-19 07:57:13,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:57:13,074 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 2.125) internal successors, (34), 17 states have internal predecessors, (34), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2023-11-19 07:57:13,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:13,075 INFO L225 Difference]: With dead ends: 101 [2023-11-19 07:57:13,075 INFO L226 Difference]: Without dead ends: 95 [2023-11-19 07:57:13,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2023-11-19 07:57:13,077 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 25 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:13,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 114 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:57:13,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-19 07:57:13,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 80. [2023-11-19 07:57:13,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 65 states have internal predecessors, (72), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:57:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2023-11-19 07:57:13,106 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 45 [2023-11-19 07:57:13,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:13,107 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2023-11-19 07:57:13,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 2.125) internal successors, (34), 17 states have internal predecessors, (34), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2023-11-19 07:57:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:57:13,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:13,108 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:13,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:13,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:57:13,315 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:13,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:13,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1582515168, now seen corresponding path program 1 times [2023-11-19 07:57:13,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:13,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900868967] [2023-11-19 07:57:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:13,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:13,334 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:13,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50231124] [2023-11-19 07:57:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:13,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:13,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:13,336 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:13,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:57:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:57:13,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:13,503 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:13,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 44 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:57:13,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:13,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900868967] [2023-11-19 07:57:13,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:13,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50231124] [2023-11-19 07:57:13,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50231124] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:13,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:13,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-19 07:57:13,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269155053] [2023-11-19 07:57:13,646 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:13,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:57:13,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:13,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:57:13,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:57:13,649 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:57:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:13,844 INFO L93 Difference]: Finished difference Result 146 states and 168 transitions. [2023-11-19 07:57:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 07:57:13,845 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 49 [2023-11-19 07:57:13,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:13,847 INFO L225 Difference]: With dead ends: 146 [2023-11-19 07:57:13,847 INFO L226 Difference]: Without dead ends: 140 [2023-11-19 07:57:13,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:57:13,848 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 49 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:13,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 141 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:13,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-19 07:57:13,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-11-19 07:57:13,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 113 states have (on average 1.1150442477876106) internal successors, (126), 113 states have internal predecessors, (126), 16 states have call successors, (16), 11 states have call predecessors, (16), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:57:13,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 157 transitions. [2023-11-19 07:57:13,890 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 157 transitions. Word has length 49 [2023-11-19 07:57:13,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:13,891 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 157 transitions. [2023-11-19 07:57:13,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:57:13,891 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 157 transitions. [2023-11-19 07:57:13,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:57:13,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:13,893 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:13,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:14,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:14,108 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:14,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:14,109 INFO L85 PathProgramCache]: Analyzing trace with hash 297311502, now seen corresponding path program 2 times [2023-11-19 07:57:14,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:14,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933756580] [2023-11-19 07:57:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:14,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:14,123 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:14,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030067244] [2023-11-19 07:57:14,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:57:14,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:14,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:14,125 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:14,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:57:14,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:57:14,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:14,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 07:57:14,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 20 proven. 470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:14,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 20 proven. 290 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:57:14,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:14,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933756580] [2023-11-19 07:57:14,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:14,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030067244] [2023-11-19 07:57:14,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030067244] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:14,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:14,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2023-11-19 07:57:14,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285414934] [2023-11-19 07:57:14,843 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:14,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-19 07:57:14,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:14,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-19 07:57:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=369, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:57:14,846 INFO L87 Difference]: Start difference. First operand 140 states and 157 transitions. Second operand has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 21 states have call successors, (21), 12 states have call predecessors, (21), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:57:15,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:15,422 INFO L93 Difference]: Finished difference Result 266 states and 306 transitions. [2023-11-19 07:57:15,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-19 07:57:15,423 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 21 states have call successors, (21), 12 states have call predecessors, (21), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 109 [2023-11-19 07:57:15,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:15,427 INFO L225 Difference]: With dead ends: 266 [2023-11-19 07:57:15,427 INFO L226 Difference]: Without dead ends: 260 [2023-11-19 07:57:15,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=796, Invalid=1366, Unknown=0, NotChecked=0, Total=2162 [2023-11-19 07:57:15,430 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 154 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:15,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 206 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-19 07:57:15,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2023-11-19 07:57:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 209 states have (on average 1.1196172248803828) internal successors, (234), 209 states have internal predecessors, (234), 28 states have call successors, (28), 23 states have call predecessors, (28), 22 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-19 07:57:15,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 289 transitions. [2023-11-19 07:57:15,506 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 289 transitions. Word has length 109 [2023-11-19 07:57:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:15,508 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 289 transitions. [2023-11-19 07:57:15,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.576923076923077) internal successors, (145), 26 states have internal predecessors, (145), 21 states have call successors, (21), 12 states have call predecessors, (21), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:57:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 289 transitions. [2023-11-19 07:57:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-19 07:57:15,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:15,516 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:15,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:15,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:15,735 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:15,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:15,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1294150550, now seen corresponding path program 3 times [2023-11-19 07:57:15,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:15,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441021551] [2023-11-19 07:57:15,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:15,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:15,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:15,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752317107] [2023-11-19 07:57:15,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:57:15,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:15,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:15,772 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:15,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:57:15,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 07:57:15,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:15,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 07:57:15,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:16,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 234 proven. 1 refuted. 0 times theorem prover too weak. 2163 trivial. 0 not checked. [2023-11-19 07:57:16,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:16,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 106 proven. 129 refuted. 0 times theorem prover too weak. 2163 trivial. 0 not checked. [2023-11-19 07:57:16,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:16,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441021551] [2023-11-19 07:57:16,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:16,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752317107] [2023-11-19 07:57:16,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752317107] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:16,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:16,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 17 [2023-11-19 07:57:16,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693624419] [2023-11-19 07:57:16,591 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:16,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-19 07:57:16,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:16,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-19 07:57:16,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:57:16,593 INFO L87 Difference]: Start difference. First operand 260 states and 289 transitions. Second operand has 17 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 16 states have internal predecessors, (32), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:16,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:16,864 INFO L93 Difference]: Finished difference Result 467 states and 513 transitions. [2023-11-19 07:57:16,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:16,865 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 16 states have internal predecessors, (32), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 229 [2023-11-19 07:57:16,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:16,869 INFO L225 Difference]: With dead ends: 467 [2023-11-19 07:57:16,869 INFO L226 Difference]: Without dead ends: 461 [2023-11-19 07:57:16,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 438 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:16,871 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:16,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 86 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:16,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-19 07:57:17,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 458. [2023-11-19 07:57:17,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 367 states have (on average 1.119891008174387) internal successors, (411), 367 states have internal predecessors, (411), 47 states have call successors, (47), 44 states have call predecessors, (47), 43 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-19 07:57:17,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 504 transitions. [2023-11-19 07:57:17,016 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 504 transitions. Word has length 229 [2023-11-19 07:57:17,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:17,017 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 504 transitions. [2023-11-19 07:57:17,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 16 states have internal predecessors, (32), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:17,017 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 504 transitions. [2023-11-19 07:57:17,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-19 07:57:17,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:17,021 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 21, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:17,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:17,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:17,241 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:17,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:17,242 INFO L85 PathProgramCache]: Analyzing trace with hash -614092180, now seen corresponding path program 1 times [2023-11-19 07:57:17,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:17,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345212052] [2023-11-19 07:57:17,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:17,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:17,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:17,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512429977] [2023-11-19 07:57:17,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:17,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:17,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:17,269 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:17,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:57:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:17,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-19 07:57:17,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 44 proven. 2354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:18,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 44 proven. 1430 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-19 07:57:19,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:19,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345212052] [2023-11-19 07:57:19,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:19,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512429977] [2023-11-19 07:57:19,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512429977] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:19,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:19,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26] total 50 [2023-11-19 07:57:19,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16799975] [2023-11-19 07:57:19,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:19,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-19 07:57:19,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:19,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-19 07:57:19,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1133, Invalid=1317, Unknown=0, NotChecked=0, Total=2450 [2023-11-19 07:57:19,227 INFO L87 Difference]: Start difference. First operand 458 states and 504 transitions. Second operand has 50 states, 50 states have (on average 6.02) internal successors, (301), 50 states have internal predecessors, (301), 45 states have call successors, (45), 24 states have call predecessors, (45), 23 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-19 07:57:21,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:21,121 INFO L93 Difference]: Finished difference Result 947 states and 1064 transitions. [2023-11-19 07:57:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-11-19 07:57:21,125 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 6.02) internal successors, (301), 50 states have internal predecessors, (301), 45 states have call successors, (45), 24 states have call predecessors, (45), 23 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 229 [2023-11-19 07:57:21,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:21,136 INFO L225 Difference]: With dead ends: 947 [2023-11-19 07:57:21,136 INFO L226 Difference]: Without dead ends: 941 [2023-11-19 07:57:21,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3316, Invalid=5614, Unknown=0, NotChecked=0, Total=8930 [2023-11-19 07:57:21,148 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 379 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:21,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 383 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:57:21,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2023-11-19 07:57:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 938. [2023-11-19 07:57:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 751 states have (on average 1.122503328894807) internal successors, (843), 751 states have internal predecessors, (843), 95 states have call successors, (95), 92 states have call predecessors, (95), 91 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-19 07:57:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1032 transitions. [2023-11-19 07:57:21,443 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1032 transitions. Word has length 229 [2023-11-19 07:57:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:21,444 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1032 transitions. [2023-11-19 07:57:21,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 6.02) internal successors, (301), 50 states have internal predecessors, (301), 45 states have call successors, (45), 24 states have call predecessors, (45), 23 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-19 07:57:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1032 transitions. [2023-11-19 07:57:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-11-19 07:57:21,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:21,457 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 45, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:21,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:21,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:21,678 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:21,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:21,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1651100380, now seen corresponding path program 2 times [2023-11-19 07:57:21,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:21,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272069684] [2023-11-19 07:57:21,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:21,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:21,730 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:21,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318794581] [2023-11-19 07:57:21,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:57:21,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:21,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:21,734 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:21,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:57:21,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:57:21,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:21,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-19 07:57:22,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:23,782 INFO L134 CoverageAnalysis]: Checked inductivity of 10534 backedges. 92 proven. 10442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:23,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:25,633 INFO L134 CoverageAnalysis]: Checked inductivity of 10534 backedges. 92 proven. 6302 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2023-11-19 07:57:25,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:25,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272069684] [2023-11-19 07:57:25,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:25,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318794581] [2023-11-19 07:57:25,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318794581] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:25,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:25,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 50] total 54 [2023-11-19 07:57:25,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633412228] [2023-11-19 07:57:25,635 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:25,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-11-19 07:57:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:25,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-11-19 07:57:25,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=1531, Unknown=0, NotChecked=0, Total=2862 [2023-11-19 07:57:25,641 INFO L87 Difference]: Start difference. First operand 938 states and 1032 transitions. Second operand has 54 states, 54 states have (on average 7.388888888888889) internal successors, (399), 54 states have internal predecessors, (399), 50 states have call successors, (93), 48 states have call predecessors, (93), 47 states have return successors, (92), 49 states have call predecessors, (92), 49 states have call successors, (92) [2023-11-19 07:57:27,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:27,698 INFO L93 Difference]: Finished difference Result 1027 states and 1132 transitions. [2023-11-19 07:57:27,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-11-19 07:57:27,699 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 7.388888888888889) internal successors, (399), 54 states have internal predecessors, (399), 50 states have call successors, (93), 48 states have call predecessors, (93), 47 states have return successors, (92), 49 states have call predecessors, (92), 49 states have call successors, (92) Word has length 469 [2023-11-19 07:57:27,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:27,706 INFO L225 Difference]: With dead ends: 1027 [2023-11-19 07:57:27,706 INFO L226 Difference]: Without dead ends: 1021 [2023-11-19 07:57:27,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 985 GetRequests, 840 SyntacticMatches, 44 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2350 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=3926, Invalid=6580, Unknown=0, NotChecked=0, Total=10506 [2023-11-19 07:57:27,712 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 188 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:27,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 402 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:27,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2023-11-19 07:57:27,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1018. [2023-11-19 07:57:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 815 states have (on average 1.1226993865030674) internal successors, (915), 815 states have internal predecessors, (915), 103 states have call successors, (103), 100 states have call predecessors, (103), 99 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-11-19 07:57:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1120 transitions. [2023-11-19 07:57:27,948 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1120 transitions. Word has length 469 [2023-11-19 07:57:27,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:27,950 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1120 transitions. [2023-11-19 07:57:27,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 7.388888888888889) internal successors, (399), 54 states have internal predecessors, (399), 50 states have call successors, (93), 48 states have call predecessors, (93), 47 states have return successors, (92), 49 states have call predecessors, (92), 49 states have call successors, (92) [2023-11-19 07:57:27,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1120 transitions. [2023-11-19 07:57:27,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2023-11-19 07:57:27,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:27,966 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 50, 50, 50, 50, 50, 50, 50, 49, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:27,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:28,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:28,180 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:28,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:28,181 INFO L85 PathProgramCache]: Analyzing trace with hash -234739816, now seen corresponding path program 3 times [2023-11-19 07:57:28,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:28,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471918638] [2023-11-19 07:57:28,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:28,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:28,212 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:28,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [536402088] [2023-11-19 07:57:28,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:57:28,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:28,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:28,214 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:28,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:57:30,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2023-11-19 07:57:30,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-19 07:57:30,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:57:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:30,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:57:30,522 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:57:30,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:57:30,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:30,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:30,742 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 3, 1, 1, 1, 1, 1] [2023-11-19 07:57:30,747 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:57:30,827 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,829 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,831 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,833 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,834 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,836 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,838 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,840 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,841 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,842 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,850 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,852 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,853 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,854 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,855 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,856 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,857 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,858 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,859 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,860 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,861 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,862 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,862 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,863 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,864 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,865 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,866 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,866 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,867 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,869 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,869 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,870 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,871 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,872 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,872 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,873 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,874 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,874 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,875 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,876 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,877 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,877 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,878 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,879 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,879 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,880 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,881 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,882 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,882 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,907 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:57:30 BoogieIcfgContainer [2023-11-19 07:57:30,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:57:30,968 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:57:30,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:57:30,969 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:57:30,969 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:58" (3/4) ... [2023-11-19 07:57:30,970 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:57:30,998 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:30,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,000 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,002 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,004 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,005 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,005 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,010 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,011 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,011 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,012 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,012 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,013 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,013 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,014 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,014 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,015 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,015 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,016 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,016 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,017 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,017 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,017 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,019 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,019 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,027 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,029 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,030 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,030 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,031 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,031 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,031 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,032 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-19 07:57:31,181 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:57:31,182 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:57:31,182 INFO L158 Benchmark]: Toolchain (without parser) took 33152.15ms. Allocated memory was 157.3MB in the beginning and 262.1MB in the end (delta: 104.9MB). Free memory was 111.9MB in the beginning and 201.2MB in the end (delta: -89.3MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-19 07:57:31,183 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 157.3MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:31,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.45ms. Allocated memory is still 157.3MB. Free memory was 111.6MB in the beginning and 101.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:57:31,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.19ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 99.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:31,185 INFO L158 Benchmark]: Boogie Preprocessor took 28.87ms. Allocated memory is still 157.3MB. Free memory was 99.3MB in the beginning and 98.3MB in the end (delta: 947.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:31,185 INFO L158 Benchmark]: RCFGBuilder took 406.35ms. Allocated memory is still 157.3MB. Free memory was 98.0MB in the beginning and 87.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:57:31,186 INFO L158 Benchmark]: TraceAbstraction took 32129.65ms. Allocated memory was 157.3MB in the beginning and 262.1MB in the end (delta: 104.9MB). Free memory was 86.9MB in the beginning and 220.1MB in the end (delta: -133.2MB). Peak memory consumption was 121.0MB. Max. memory is 16.1GB. [2023-11-19 07:57:31,186 INFO L158 Benchmark]: Witness Printer took 213.62ms. Allocated memory is still 262.1MB. Free memory was 220.1MB in the beginning and 201.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:57:31,189 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 157.3MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.45ms. Allocated memory is still 157.3MB. Free memory was 111.6MB in the beginning and 101.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.19ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 99.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.87ms. Allocated memory is still 157.3MB. Free memory was 99.3MB in the beginning and 98.3MB in the end (delta: 947.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 406.35ms. Allocated memory is still 157.3MB. Free memory was 98.0MB in the beginning and 87.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 32129.65ms. Allocated memory was 157.3MB in the beginning and 262.1MB in the end (delta: 104.9MB). Free memory was 86.9MB in the beginning and 220.1MB in the end (delta: -133.2MB). Peak memory consumption was 121.0MB. Max. memory is 16.1GB. * Witness Printer took 213.62ms. Allocated memory is still 262.1MB. Free memory was 220.1MB in the beginning and 201.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 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~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int counter = 0; VAL [counter=0] [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [X=99, Y=1, counter=0, v=-97, x=0, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=1, v=-97, x=0, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=1, v=-97, x=0, x=0, x=0, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=1] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=1, v=-97, x=0, x=0, x=0, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=1, v=-97, x=0, x=0, x=0, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=1, v=-95, x=0, x=0, x=0, y=0] [L45] x++ VAL [X=99, Y=1, counter=1, v=-95, x=0, x=0, x=1, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=2, v=-95, x=0, x=0, x=1, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=2, v=-95, x=0, x=1, x=1, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=2] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=2, v=-95, x=0, x=1, x=1, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=2, v=-95, x=0, x=1, x=1, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=2, v=-93, x=0, x=1, x=1, y=0] [L45] x++ VAL [X=99, Y=1, counter=2, v=-93, x=0, x=1, x=2, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=3, v=-93, x=0, x=1, x=2, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=3, v=-93, x=0, x=2, x=2, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=3] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=3, v=-93, x=0, x=2, x=2, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=3, v=-93, x=0, x=2, x=2, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=3, v=-91, x=0, x=2, x=2, y=0] [L45] x++ VAL [X=99, Y=1, counter=3, v=-91, x=0, x=2, x=3, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=4, v=-91, x=0, x=2, x=3, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=4, v=-91, x=0, x=3, x=3, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=4] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=4, v=-91, x=0, x=3, x=3, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=4, v=-91, x=0, x=3, x=3, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=4, v=-89, x=0, x=3, x=3, y=0] [L45] x++ VAL [X=99, Y=1, counter=4, v=-89, x=0, x=3, x=4, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=5, v=-89, x=0, x=3, x=4, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=5, v=-89, x=0, x=4, x=4, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=5] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=5, v=-89, x=0, x=4, x=4, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=5, v=-89, x=0, x=4, x=4, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=5, v=-87, x=0, x=4, x=4, y=0] [L45] x++ VAL [X=99, Y=1, counter=5, v=-87, x=0, x=4, x=5, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=6, v=-87, x=0, x=4, x=5, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=6, v=-87, x=0, x=5, x=5, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=6] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=6] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=6, v=-87, x=0, x=5, x=5, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=6, v=-87, x=0, x=5, x=5, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=6, v=-85, x=0, x=5, x=5, y=0] [L45] x++ VAL [X=99, Y=1, counter=6, v=-85, x=0, x=5, x=6, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=7, v=-85, x=0, x=5, x=6, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=7, v=-85, x=0, x=6, x=6, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=7] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=7] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=7, v=-85, x=0, x=6, x=6, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=7, v=-85, x=0, x=6, x=6, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=7, v=-83, x=0, x=6, x=6, y=0] [L45] x++ VAL [X=99, Y=1, counter=7, v=-83, x=0, x=6, x=7, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=8, v=-83, x=0, x=6, x=7, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=8, v=-83, x=0, x=7, x=7, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=8] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=8] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=8, v=-83, x=0, x=7, x=7, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=8, v=-83, x=0, x=7, x=7, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=8, v=-81, x=0, x=7, x=7, y=0] [L45] x++ VAL [X=99, Y=1, counter=8, v=-81, x=0, x=7, x=8, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=9, v=-81, x=0, x=7, x=8, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=9, v=-81, x=0, x=8, x=8, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=9] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=9] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=9, v=-81, x=0, x=8, x=8, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=9, v=-81, x=0, x=8, x=8, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=9, v=-79, x=0, x=8, x=8, y=0] [L45] x++ VAL [X=99, Y=1, counter=9, v=-79, x=0, x=8, x=9, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=10, v=-79, x=0, x=8, x=9, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=10, v=-79, x=0, x=9, x=9, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=10] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=10] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=10, v=-79, x=0, x=9, x=9, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=10, v=-79, x=0, x=9, x=9, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=10, v=-77, x=0, x=9, x=9, y=0] [L45] x++ VAL [X=99, Y=1, counter=10, v=-77, x=0, x=10, x=9, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=11, v=-77, x=0, x=10, x=9, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=11, v=-77, x=0, x=10, x=10, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=11] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=11] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=11, v=-77, x=0, x=10, x=10, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=11, v=-77, x=0, x=10, x=10, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=11, v=-75, x=0, x=10, x=10, y=0] [L45] x++ VAL [X=99, Y=1, counter=11, v=-75, x=0, x=10, x=11, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=12, v=-75, x=0, x=10, x=11, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=12, v=-75, x=0, x=11, x=11, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=12] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=12] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=12, v=-75, x=0, x=11, x=11, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=12, v=-75, x=0, x=11, x=11, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=12, v=-73, x=0, x=11, x=11, y=0] [L45] x++ VAL [X=99, Y=1, counter=12, v=-73, x=0, x=11, x=12, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=13, v=-73, x=0, x=11, x=12, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=13, v=-73, x=0, x=12, x=12, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=13] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=13] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=13, v=-73, x=0, x=12, x=12, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=13, v=-73, x=0, x=12, x=12, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=13, v=-71, x=0, x=12, x=12, y=0] [L45] x++ VAL [X=99, Y=1, counter=13, v=-71, x=0, x=12, x=13, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=14, v=-71, x=0, x=12, x=13, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=14, v=-71, x=0, x=13, x=13, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=14] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=14] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=14, v=-71, x=0, x=13, x=13, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=14, v=-71, x=0, x=13, x=13, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=14, v=-69, x=0, x=13, x=13, y=0] [L45] x++ VAL [X=99, Y=1, counter=14, v=-69, x=0, x=13, x=14, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=15, v=-69, x=0, x=13, x=14, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=15, v=-69, x=0, x=14, x=14, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=15] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=15] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=15, v=-69, x=0, x=14, x=14, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=15, v=-69, x=0, x=14, x=14, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=15, v=-67, x=0, x=14, x=14, y=0] [L45] x++ VAL [X=99, Y=1, counter=15, v=-67, x=0, x=14, x=15, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=16, v=-67, x=0, x=14, x=15, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=16, v=-67, x=0, x=15, x=15, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=16] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=16] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=16, v=-67, x=0, x=15, x=15, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=16, v=-67, x=0, x=15, x=15, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=16, v=-65, x=0, x=15, x=15, y=0] [L45] x++ VAL [X=99, Y=1, counter=16, v=-65, x=0, x=15, x=16, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=17, v=-65, x=0, x=15, x=16, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=17, v=-65, x=0, x=16, x=16, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=17] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=17] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=17, v=-65, x=0, x=16, x=16, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=17, v=-65, x=0, x=16, x=16, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=17, v=-63, x=0, x=16, x=16, y=0] [L45] x++ VAL [X=99, Y=1, counter=17, v=-63, x=0, x=16, x=17, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=18, v=-63, x=0, x=16, x=17, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=18, v=-63, x=0, x=17, x=17, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=18] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=18] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=18, v=-63, x=0, x=17, x=17, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=18, v=-63, x=0, x=17, x=17, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=18, v=-61, x=0, x=17, x=17, y=0] [L45] x++ VAL [X=99, Y=1, counter=18, v=-61, x=0, x=17, x=18, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=19, v=-61, x=0, x=17, x=18, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=19, v=-61, x=0, x=18, x=18, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=19] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=19] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=19, v=-61, x=0, x=18, x=18, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=19, v=-61, x=0, x=18, x=18, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=19, v=-59, x=0, x=18, x=18, y=0] [L45] x++ VAL [X=99, Y=1, counter=19, v=-59, x=0, x=18, x=19, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=20, v=-59, x=0, x=18, x=19, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=20, v=-59, x=0, x=19, x=19, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=20] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=20] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=20, v=-59, x=0, x=19, x=19, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=20, v=-59, x=0, x=19, x=19, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=20, v=-57, x=0, x=19, x=19, y=0] [L45] x++ VAL [X=99, Y=1, counter=20, v=-57, x=0, x=19, x=20, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=21, v=-57, x=0, x=19, x=20, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=21, v=-57, x=0, x=20, x=20, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=21] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=21] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=21, v=-57, x=0, x=20, x=20, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=21, v=-57, x=0, x=20, x=20, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=21, v=-55, x=0, x=20, x=20, y=0] [L45] x++ VAL [X=99, Y=1, counter=21, v=-55, x=0, x=20, x=21, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=22, v=-55, x=0, x=20, x=21, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=22, v=-55, x=0, x=21, x=21, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=22] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=22] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=22, v=-55, x=0, x=21, x=21, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=22, v=-55, x=0, x=21, x=21, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=22, v=-53, x=0, x=21, x=21, y=0] [L45] x++ VAL [X=99, Y=1, counter=22, v=-53, x=0, x=21, x=22, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=23, v=-53, x=0, x=21, x=22, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=23, v=-53, x=0, x=22, x=22, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=23] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=23] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=23, v=-53, x=0, x=22, x=22, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=23, v=-53, x=0, x=22, x=22, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=23, v=-51, x=0, x=22, x=22, y=0] [L45] x++ VAL [X=99, Y=1, counter=23, v=-51, x=0, x=22, x=23, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=24, v=-51, x=0, x=22, x=23, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=24, v=-51, x=0, x=23, x=23, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=24] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=24] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=24, v=-51, x=0, x=23, x=23, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=24, v=-51, x=0, x=23, x=23, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=24, v=-49, x=0, x=23, x=23, y=0] [L45] x++ VAL [X=99, Y=1, counter=24, v=-49, x=0, x=23, x=24, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=25, v=-49, x=0, x=23, x=24, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=25, v=-49, x=0, x=24, x=24, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=25] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=25] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=25, v=-49, x=0, x=24, x=24, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=25, v=-49, x=0, x=24, x=24, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=25, v=-47, x=0, x=24, x=24, y=0] [L45] x++ VAL [X=99, Y=1, counter=25, v=-47, x=0, x=24, x=25, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=26, v=-47, x=0, x=24, x=25, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=26, v=-47, x=0, x=25, x=25, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=26] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=26] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=26, v=-47, x=0, x=25, x=25, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=26, v=-47, x=0, x=25, x=25, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=26, v=-45, x=0, x=25, x=25, y=0] [L45] x++ VAL [X=99, Y=1, counter=26, v=-45, x=0, x=25, x=26, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=27, v=-45, x=0, x=25, x=26, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=27, v=-45, x=0, x=26, x=26, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=27] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=27] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=27, v=-45, x=0, x=26, x=26, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=27, v=-45, x=0, x=26, x=26, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=27, v=-43, x=0, x=26, x=26, y=0] [L45] x++ VAL [X=99, Y=1, counter=27, v=-43, x=0, x=26, x=27, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=28, v=-43, x=0, x=26, x=27, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=28, v=-43, x=0, x=27, x=27, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=28] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=28] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=28, v=-43, x=0, x=27, x=27, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=28, v=-43, x=0, x=27, x=27, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=28, v=-41, x=0, x=27, x=27, y=0] [L45] x++ VAL [X=99, Y=1, counter=28, v=-41, x=0, x=27, x=28, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=29, v=-41, x=0, x=27, x=28, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=29, v=-41, x=0, x=28, x=28, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=29] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=29] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=29, v=-41, x=0, x=28, x=28, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=29, v=-41, x=0, x=28, x=28, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=29, v=-39, x=0, x=28, x=28, y=0] [L45] x++ VAL [X=99, Y=1, counter=29, v=-39, x=0, x=28, x=29, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=30, v=-39, x=0, x=28, x=29, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=30, v=-39, x=0, x=29, x=29, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=30] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=30] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=30, v=-39, x=0, x=29, x=29, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=30, v=-39, x=0, x=29, x=29, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=30, v=-37, x=0, x=29, x=29, y=0] [L45] x++ VAL [X=99, Y=1, counter=30, v=-37, x=0, x=29, x=30, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=31, v=-37, x=0, x=29, x=30, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=31, v=-37, x=0, x=30, x=30, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=31] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=31] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=31, v=-37, x=0, x=30, x=30, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=31, v=-37, x=0, x=30, x=30, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=31, v=-35, x=0, x=30, x=30, y=0] [L45] x++ VAL [X=99, Y=1, counter=31, v=-35, x=0, x=30, x=31, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=32, v=-35, x=0, x=30, x=31, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=32, v=-35, x=0, x=31, x=31, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=32] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=32] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=32, v=-35, x=0, x=31, x=31, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=32, v=-35, x=0, x=31, x=31, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=32, v=-33, x=0, x=31, x=31, y=0] [L45] x++ VAL [X=99, Y=1, counter=32, v=-33, x=0, x=31, x=32, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=33, v=-33, x=0, x=31, x=32, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=33, v=-33, x=0, x=32, x=32, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=33] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=33] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=33, v=-33, x=0, x=32, x=32, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=33, v=-33, x=0, x=32, x=32, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=33, v=-31, x=0, x=32, x=32, y=0] [L45] x++ VAL [X=99, Y=1, counter=33, v=-31, x=0, x=32, x=33, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=34, v=-31, x=0, x=32, x=33, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=34, v=-31, x=0, x=33, x=33, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=34] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=34] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=34, v=-31, x=0, x=33, x=33, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=34, v=-31, x=0, x=33, x=33, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=34, v=-29, x=0, x=33, x=33, y=0] [L45] x++ VAL [X=99, Y=1, counter=34, v=-29, x=0, x=33, x=34, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=35, v=-29, x=0, x=33, x=34, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=35, v=-29, x=0, x=34, x=34, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=35] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=35] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=35, v=-29, x=0, x=34, x=34, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=35, v=-29, x=0, x=34, x=34, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=35, v=-27, x=0, x=34, x=34, y=0] [L45] x++ VAL [X=99, Y=1, counter=35, v=-27, x=0, x=34, x=35, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=36, v=-27, x=0, x=34, x=35, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=36, v=-27, x=0, x=35, x=35, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=36] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=36] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=36, v=-27, x=0, x=35, x=35, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=36, v=-27, x=0, x=35, x=35, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=36, v=-25, x=0, x=35, x=35, y=0] [L45] x++ VAL [X=99, Y=1, counter=36, v=-25, x=0, x=35, x=36, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=37, v=-25, x=0, x=35, x=36, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=37, v=-25, x=0, x=36, x=36, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=37] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=37] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=37, v=-25, x=0, x=36, x=36, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=37, v=-25, x=0, x=36, x=36, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=37, v=-23, x=0, x=36, x=36, y=0] [L45] x++ VAL [X=99, Y=1, counter=37, v=-23, x=0, x=36, x=37, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=38, v=-23, x=0, x=36, x=37, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=38, v=-23, x=0, x=37, x=37, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=38] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=38] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=38, v=-23, x=0, x=37, x=37, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=38, v=-23, x=0, x=37, x=37, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=38, v=-21, x=0, x=37, x=37, y=0] [L45] x++ VAL [X=99, Y=1, counter=38, v=-21, x=0, x=37, x=38, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=39, v=-21, x=0, x=37, x=38, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=39, v=-21, x=0, x=38, x=38, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=39] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=39] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=39, v=-21, x=0, x=38, x=38, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=39, v=-21, x=0, x=38, x=38, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=39, v=-19, x=0, x=38, x=38, y=0] [L45] x++ VAL [X=99, Y=1, counter=39, v=-19, x=0, x=38, x=39, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=40, v=-19, x=0, x=38, x=39, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=40, v=-19, x=0, x=39, x=39, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=40] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=40] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=40, v=-19, x=0, x=39, x=39, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=40, v=-19, x=0, x=39, x=39, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=40, v=-17, x=0, x=39, x=39, y=0] [L45] x++ VAL [X=99, Y=1, counter=40, v=-17, x=0, x=39, x=40, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=41, v=-17, x=0, x=39, x=40, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=41, v=-17, x=0, x=40, x=40, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=41] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=41] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=41, v=-17, x=0, x=40, x=40, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=41, v=-17, x=0, x=40, x=40, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=41, v=-15, x=0, x=40, x=40, y=0] [L45] x++ VAL [X=99, Y=1, counter=41, v=-15, x=0, x=40, x=41, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=42, v=-15, x=0, x=40, x=41, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=42, v=-15, x=0, x=41, x=41, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=42] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=42] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=42, v=-15, x=0, x=41, x=41, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=42, v=-15, x=0, x=41, x=41, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=42, v=-13, x=0, x=41, x=41, y=0] [L45] x++ VAL [X=99, Y=1, counter=42, v=-13, x=0, x=41, x=42, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=43, v=-13, x=0, x=41, x=42, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=43, v=-13, x=0, x=42, x=42, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=43] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=43] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=43, v=-13, x=0, x=42, x=42, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=43, v=-13, x=0, x=42, x=42, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=43, v=-11, x=0, x=42, x=42, y=0] [L45] x++ VAL [X=99, Y=1, counter=43, v=-11, x=0, x=42, x=43, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=44, v=-11, x=0, x=42, x=43, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=44, v=-11, x=0, x=43, x=43, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=44] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=44] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=44, v=-11, x=0, x=43, x=43, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=44, v=-11, x=0, x=43, x=43, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=44, v=-9, x=0, x=43, x=43, y=0] [L45] x++ VAL [X=99, Y=1, counter=44, v=-9, x=0, x=43, x=44, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=45, v=-9, x=0, x=43, x=44, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=45, v=-9, x=0, x=44, x=44, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=45] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=45] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=45, v=-9, x=0, x=44, x=44, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=45, v=-9, x=0, x=44, x=44, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=45, v=-7, x=0, x=44, x=44, y=0] [L45] x++ VAL [X=99, Y=1, counter=45, v=-7, x=0, x=44, x=45, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=46, v=-7, x=0, x=44, x=45, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=46, v=-7, x=0, x=45, x=45, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=46] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=46] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=46, v=-7, x=0, x=45, x=45, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=46, v=-7, x=0, x=45, x=45, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=46, v=-5, x=0, x=45, x=45, y=0] [L45] x++ VAL [X=99, Y=1, counter=46, v=-5, x=0, x=45, x=46, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=47, v=-5, x=0, x=45, x=46, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=47, v=-5, x=0, x=46, x=46, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=47] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=47] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=47, v=-5, x=0, x=46, x=46, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=47, v=-5, x=0, x=46, x=46, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=47, v=-3, x=0, x=46, x=46, y=0] [L45] x++ VAL [X=99, Y=1, counter=47, v=-3, x=0, x=46, x=47, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=48, v=-3, x=0, x=46, x=47, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=48, v=-3, x=0, x=47, x=47, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=48] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=48] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=48, v=-3, x=0, x=47, x=47, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=48, v=-3, x=0, x=47, x=47, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=48, v=-1, x=0, x=47, x=47, y=0] [L45] x++ VAL [X=99, Y=1, counter=48, v=-1, x=0, x=47, x=48, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=49, v=-1, x=0, x=47, x=48, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=49, v=-1, x=0, x=48, x=48, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=49] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=49] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=49, v=-1, x=0, x=48, x=48, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=49, v=-1, x=0, x=48, x=48, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=99, Y=1, counter=49, v=1, x=0, x=48, x=48, y=0] [L45] x++ VAL [X=99, Y=1, counter=49, v=1, x=0, x=48, x=49, y=0] [L31] EXPR counter++ VAL [X=99, Y=1, counter=50, v=1, x=0, x=48, x=49, y=0] [L31] COND TRUE counter++<50 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=99, Y=1, counter=50, v=1, x=0, x=49, x=49, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=50] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=50] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=99, Y=1, counter=50, v=1, x=0, x=49, x=49, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=99, Y=1, counter=50, v=1, x=0, x=49, x=49, y=0] [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ VAL [X=99, Y=1, counter=50, v=-195, x=0, x=49, x=49, y=1] [L45] x++ VAL [X=99, Y=1, counter=50, v=-195, x=0, x=49, x=50, y=1] [L31] EXPR counter++ VAL [X=99, Y=1, counter=51, v=-195, x=0, x=49, x=50, y=1] [L31] COND FALSE !(counter++<50) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [X=99, Y=1, counter=51, v=-195, x=50, x=50, x=50, y=1] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [\old(cond)=0, counter=51] [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=51] [L16] reach_error() VAL [\old(cond)=0, cond=0, counter=51] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.8s, OverallIterations: 14, TraceHistogramMax: 51, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 953 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 949 mSDsluCounter, 2007 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1823 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1753 IncrementalHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 184 mSDtfsCounter, 1753 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2757 GetRequests, 2293 SyntacticMatches, 53 SemanticMatches, 411 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4588 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1018occurred in iteration=13, InterpolantAutomatonStates: 371, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 52 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 1834 NumberOfCodeBlocks, 1604 NumberOfCodeBlocksAsserted, 69 NumberOfCheckSat, 2573 ConstructedInterpolants, 2 QuantifiedInterpolants, 8205 SizeOfPredicates, 127 NumberOfNonLiveVariables, 3025 ConjunctsInSsa, 349 ConjunctsInUnsatCore, 24 InterpolantComputations, 1 PerfectInterpolantSequences, 10591/32208 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:57:31,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbaebcb4-6960-4dff-bc96-c8653d26c5cb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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