./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/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_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/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_2f326b89-1d44-4997-932a-73ca200e42b5/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 a7db00fa220927f51e1e342e06102a5d28a1c61268049ef86f9068e213c9adb5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:50:52,985 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:50:53,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:50:53,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:50:53,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:50:53,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:50:53,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:50:53,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:50:53,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:50:53,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:50:53,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:50:53,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:50:53,171 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:50:53,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:50:53,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:50:53,190 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:50:53,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:50:53,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:50:53,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:50:53,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:50:53,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:50:53,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:50:53,193 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:50:53,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:50:53,194 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:50:53,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:50:53,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:50:53,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:50:53,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:53,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:50:53,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:50:53,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:50:53,197 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:50:53,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:50:53,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:50:53,198 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:50:53,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:50:53,199 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:50:53,199 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:50:53,199 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_2f326b89-1d44-4997-932a-73ca200e42b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7db00fa220927f51e1e342e06102a5d28a1c61268049ef86f9068e213c9adb5 [2023-11-19 07:50:53,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:53,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:53,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:53,504 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:53,505 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:53,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c [2023-11-19 07:50:56,708 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:50:57,001 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:50:57,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c [2023-11-19 07:50:57,011 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/data/40350712d/1c95f2c8a3a843ada9021c1c2a2f6bf7/FLAG2a86aaf3b [2023-11-19 07:50:57,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/data/40350712d/1c95f2c8a3a843ada9021c1c2a2f6bf7 [2023-11-19 07:50:57,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:50:57,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:50:57,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:57,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:50:57,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:50:57,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a704c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57, skipping insertion in model container [2023-11-19 07:50:57,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,076 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:57,238 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_2f326b89-1d44-4997-932a-73ca200e42b5/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c[458,471] [2023-11-19 07:50:57,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:57,267 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:50:57,280 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_2f326b89-1d44-4997-932a-73ca200e42b5/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound50.c[458,471] [2023-11-19 07:50:57,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:57,304 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:50:57,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57 WrapperNode [2023-11-19 07:50:57,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:57,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:57,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:50:57,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:50:57,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,341 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2023-11-19 07:50:57,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:57,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:50:57,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:50:57,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:50:57,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,362 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,363 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:50:57,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:50:57,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:50:57,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:50:57,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ... [2023-11-19 07:50:57,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:57,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:57,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:50:57,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:50:57,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:50:57,444 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:50:57,445 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:50:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:50:57,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:50:57,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:50:57,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:50:57,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:50:57,518 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:50:57,521 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:50:57,699 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:50:57,709 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:50:57,710 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:50:57,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:57 BoogieIcfgContainer [2023-11-19 07:50:57,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:50:57,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:50:57,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:50:57,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:50:57,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:57" (1/3) ... [2023-11-19 07:50:57,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622e8e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:57, skipping insertion in model container [2023-11-19 07:50:57,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (2/3) ... [2023-11-19 07:50:57,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622e8e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:57, skipping insertion in model container [2023-11-19 07:50:57,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:57" (3/3) ... [2023-11-19 07:50:57,728 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound50.c [2023-11-19 07:50:57,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:50:57,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:50:57,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:50:57,828 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;@724ef5b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:50:57,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:50:57,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:50:57,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:50:57,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:57,846 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:57,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:57,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:57,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1845349065, now seen corresponding path program 1 times [2023-11-19 07:50:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:57,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212547352] [2023-11-19 07:50:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:57,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:58,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:58,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212547352] [2023-11-19 07:50:58,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:50:58,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080587812] [2023-11-19 07:50:58,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:58,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:58,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:58,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:58,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:50:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:58,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:50:58,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:50:58,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:58,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080587812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:58,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:58,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:58,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605560888] [2023-11-19 07:50:58,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:58,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:50:58,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:58,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:50:58,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:50:58,223 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:50:58,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:58,249 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2023-11-19 07:50:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:50:58,251 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-19 07:50:58,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:58,260 INFO L225 Difference]: With dead ends: 45 [2023-11-19 07:50:58,261 INFO L226 Difference]: Without dead ends: 20 [2023-11-19 07:50:58,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:50:58,269 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:58,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:58,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-19 07:50:58,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-19 07:50:58,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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 07:50:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-11-19 07:50:58,316 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 18 [2023-11-19 07:50:58,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:58,317 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-11-19 07:50:58,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:50:58,318 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-19 07:50:58,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:50:58,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:58,320 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:58,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:58,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:58,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:58,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:58,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1506842435, now seen corresponding path program 1 times [2023-11-19 07:50:58,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:58,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704158895] [2023-11-19 07:50:58,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:58,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:58,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:50:58,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465246942] [2023-11-19 07:50:58,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:58,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:58,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:58,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:58,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:50:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:58,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:50:58,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:50:58,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:58,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:58,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704158895] [2023-11-19 07:50:58,813 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:50:58,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465246942] [2023-11-19 07:50:58,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465246942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:58,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:58,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:50:58,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149864529] [2023-11-19 07:50:58,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:58,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:50:58,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:58,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:50:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:50:58,817 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:50:58,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:58,881 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-19 07:50:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:50:58,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-19 07:50:58,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:58,883 INFO L225 Difference]: With dead ends: 31 [2023-11-19 07:50:58,883 INFO L226 Difference]: Without dead ends: 27 [2023-11-19 07:50:58,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:50:58,886 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:58,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 69 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:58,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-19 07:50:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-19 07:50:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:50:58,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-11-19 07:50:58,897 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2023-11-19 07:50:58,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:58,897 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-19 07:50:58,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:50:58,898 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-11-19 07:50:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:50:58,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:58,899 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:58,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:59,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:59,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:59,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:59,110 INFO L85 PathProgramCache]: Analyzing trace with hash 903983968, now seen corresponding path program 1 times [2023-11-19 07:50:59,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:59,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715959239] [2023-11-19 07:50:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:59,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:59,143 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:50:59,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970288193] [2023-11-19 07:50:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:59,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:59,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:59,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:59,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:50:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:59,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:50:59,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:50:59,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 07:50:59,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:59,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715959239] [2023-11-19 07:50:59,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:50:59,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970288193] [2023-11-19 07:50:59,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970288193] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:59,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:59,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2023-11-19 07:50:59,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687912315] [2023-11-19 07:50:59,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:59,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:50:59,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:59,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:50:59,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:59,443 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:50:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:59,492 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-11-19 07:50:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:50:59,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2023-11-19 07:50:59,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:59,494 INFO L225 Difference]: With dead ends: 33 [2023-11-19 07:50:59,494 INFO L226 Difference]: Without dead ends: 29 [2023-11-19 07:50:59,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:50:59,496 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:59,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:59,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-19 07:50:59,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-19 07:50:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 07:50:59,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-19 07:50:59,510 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 25 [2023-11-19 07:50:59,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:59,510 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-19 07:50:59,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:50:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-19 07:50:59,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 07:50:59,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:59,512 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:59,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:59,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-19 07:50:59,733 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:59,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:59,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1648043046, now seen corresponding path program 1 times [2023-11-19 07:50:59,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:59,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312001999] [2023-11-19 07:50:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:59,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:59,748 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:50:59,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1160801212] [2023-11-19 07:50:59,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:59,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:59,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:59,750 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:59,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:50:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:59,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:50:59,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:59,910 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:50:59,910 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:51:00,042 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:51:00,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:00,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312001999] [2023-11-19 07:51:00,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:51:00,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160801212] [2023-11-19 07:51:00,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160801212] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:51:00,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:51:00,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-11-19 07:51:00,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562734194] [2023-11-19 07:51:00,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:51:00,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:51:00,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:00,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:51:00,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:51:00,048 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 10 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-19 07:51:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:00,251 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2023-11-19 07:51:00,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:51:00,251 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 36 [2023-11-19 07:51:00,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:00,253 INFO L225 Difference]: With dead ends: 48 [2023-11-19 07:51:00,253 INFO L226 Difference]: Without dead ends: 38 [2023-11-19 07:51:00,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:51:00,254 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:00,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 158 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:51:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-19 07:51:00,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-19 07:51:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:51:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2023-11-19 07:51:00,282 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 36 [2023-11-19 07:51:00,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:00,282 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2023-11-19 07:51:00,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-19 07:51:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-19 07:51:00,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 07:51:00,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:51:00,287 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:51:00,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:51:00,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:51:00,500 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:51:00,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:00,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1013596503, now seen corresponding path program 2 times [2023-11-19 07:51:00,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:00,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145700265] [2023-11-19 07:51:00,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:00,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:00,526 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:51:00,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446770467] [2023-11-19 07:51:00,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:51:00,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:51:00,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:51:00,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:51:00,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:51:00,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:51:00,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:51:00,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-19 07:51:00,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:51:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 46 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-19 07:51:00,898 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:51:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 46 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-19 07:51:01,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:01,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145700265] [2023-11-19 07:51:01,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:51:01,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446770467] [2023-11-19 07:51:01,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446770467] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:51:01,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:51:01,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2023-11-19 07:51:01,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609284458] [2023-11-19 07:51:01,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:51:01,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-19 07:51:01,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:01,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-19 07:51:01,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:51:01,411 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 22 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 07:51:02,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:02,014 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2023-11-19 07:51:02,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:51:02,015 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 57 [2023-11-19 07:51:02,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:02,017 INFO L225 Difference]: With dead ends: 43 [2023-11-19 07:51:02,017 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:51:02,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=758, Unknown=0, NotChecked=0, Total=930 [2023-11-19 07:51:02,020 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 23 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:02,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 223 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:51:02,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:51:02,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:51:02,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:51:02,026 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2023-11-19 07:51:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:02,028 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:51:02,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 07:51:02,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:51:02,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:51:02,031 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:51:02,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:51:02,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:51:02,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:51:02,598 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:51:02,599 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (let ((.cse1 (* |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (+ |ULTIMATE.start_main_~y~0#1| .cse0) (+ |ULTIMATE.start_main_~c~0#1| .cse1)) (= (+ (* 2 |ULTIMATE.start_main_~c~0#1|) .cse1) (+ (* 2 |ULTIMATE.start_main_~y~0#1|) .cse0)) (or (= (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0) (< |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|)) (= (+ (* 30 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 10) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 15))))) [2023-11-19 07:51:02,599 INFO L899 garLoopResultBuilder]: For program point L29-1(lines 28 37) no Hoare annotation was computed. [2023-11-19 07:51:02,599 INFO L902 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: true [2023-11-19 07:51:02,599 INFO L902 garLoopResultBuilder]: At program point L21-1(line 21) the Hoare annotation is: true [2023-11-19 07:51:02,599 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:51:02,599 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 17 42) no Hoare annotation was computed. [2023-11-19 07:51:02,599 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-19 07:51:02,600 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:51:02,600 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:51:02,600 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 37) the Hoare annotation is: (let ((.cse1 (* |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (+ |ULTIMATE.start_main_~y~0#1| .cse0) (+ |ULTIMATE.start_main_~c~0#1| .cse1)) (= (+ (* 2 |ULTIMATE.start_main_~c~0#1|) .cse1) (+ (* 2 |ULTIMATE.start_main_~y~0#1|) .cse0)) (or (= (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0) (< |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|)) (= (+ (* 30 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 10) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 15))))) [2023-11-19 07:51:02,600 INFO L895 garLoopResultBuilder]: At program point L28-3(lines 28 37) the Hoare annotation is: (and (= (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= (+ (* 30 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 10) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 15)))) [2023-11-19 07:51:02,600 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-11-19 07:51:02,601 INFO L895 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (and (= (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= (+ (* 30 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 10) (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 15)))) [2023-11-19 07:51:02,601 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6 8) the Hoare annotation is: true [2023-11-19 07:51:02,601 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-11-19 07:51:02,601 INFO L899 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2023-11-19 07:51:02,601 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2023-11-19 07:51:02,601 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2023-11-19 07:51:02,601 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2023-11-19 07:51:02,601 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2023-11-19 07:51:02,601 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: true [2023-11-19 07:51:02,601 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2023-11-19 07:51:02,602 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2023-11-19 07:51:02,605 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-19 07:51:02,607 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:51:02,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:51:02 BoogieIcfgContainer [2023-11-19 07:51:02,622 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:51:02,623 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:51:02,623 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:51:02,623 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:51:02,624 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:57" (3/4) ... [2023-11-19 07:51:02,626 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:51:02,631 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 07:51:02,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 07:51:02,637 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 07:51:02,638 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:51:02,638 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:51:02,638 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:51:02,729 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:51:02,729 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:51:02,730 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:51:02,730 INFO L158 Benchmark]: Toolchain (without parser) took 5694.53ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 82.6MB in the beginning and 63.0MB in the end (delta: 19.6MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2023-11-19 07:51:02,731 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory was 92.5MB in the beginning and 92.4MB in the end (delta: 86.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:51:02,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.78ms. Allocated memory is still 123.7MB. Free memory was 82.3MB in the beginning and 71.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:51:02,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.96ms. Allocated memory is still 123.7MB. Free memory was 71.5MB in the beginning and 70.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:51:02,732 INFO L158 Benchmark]: Boogie Preprocessor took 23.46ms. Allocated memory is still 123.7MB. Free memory was 70.0MB in the beginning and 68.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:51:02,732 INFO L158 Benchmark]: RCFGBuilder took 348.44ms. Allocated memory is still 123.7MB. Free memory was 68.8MB in the beginning and 58.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:51:02,733 INFO L158 Benchmark]: TraceAbstraction took 4902.03ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 57.8MB in the beginning and 68.2MB in the end (delta: -10.4MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2023-11-19 07:51:02,733 INFO L158 Benchmark]: Witness Printer took 106.66ms. Allocated memory is still 163.6MB. Free memory was 68.2MB in the beginning and 63.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:51:02,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory was 92.5MB in the beginning and 92.4MB in the end (delta: 86.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.78ms. Allocated memory is still 123.7MB. Free memory was 82.3MB in the beginning and 71.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.96ms. Allocated memory is still 123.7MB. Free memory was 71.5MB in the beginning and 70.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.46ms. Allocated memory is still 123.7MB. Free memory was 70.0MB in the beginning and 68.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 348.44ms. Allocated memory is still 123.7MB. Free memory was 68.8MB in the beginning and 58.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4902.03ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 57.8MB in the beginning and 68.2MB in the end (delta: -10.4MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Witness Printer took 106.66ms. Allocated memory is still 163.6MB. Free memory was 68.2MB in the beginning and 63.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 5, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 542 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 432 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 286 IncrementalHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 110 mSDtfsCounter, 286 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 280 GetRequests, 224 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=4, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 30 PreInvPairs, 55 NumberOfFragments, 208 HoareAnnotationTreeSize, 30 FomulaSimplifications, 426 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 448 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 996 SizeOfPredicates, 10 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 186/286 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((y + (y * y)) == (c + (c * y))) && (((2 * c) + (c * y)) == ((2 * y) + (y * y)))) && (((k * y) == (y * y)) || (c < k))) && (((30 * x) + y) == (((6 * ((((y * y) * y) * y) * y)) + (((y * y) * y) * 10)) + ((((y * y) * y) * y) * 15)))) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:51:02,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f326b89-1d44-4997-932a-73ca200e42b5/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 Result: TRUE