./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ --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 3eb5b7aaef172dee0e37bd16c0d6ef7d510ec65ffc3ca19114c477e13a1d6fd1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:35:20,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:35:20,861 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:35:20,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:35:20,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:35:20,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:35:20,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:35:20,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:35:20,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:35:20,917 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:35:20,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:35:20,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:35:20,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:35:20,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:35:20,922 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:35:20,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:35:20,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:35:20,923 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:35:20,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:35:20,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:35:20,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:35:20,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:35:20,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:35:20,926 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:35:20,926 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:35:20,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:35:20,927 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:35:20,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:35:20,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:35:20,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:35:20,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:35:20,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:20,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:35:20,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:35:20,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:35:20,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:35:20,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:35:20,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:35:20,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:35:20,932 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:35:20,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:35:20,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:35:20,933 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_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eb5b7aaef172dee0e37bd16c0d6ef7d510ec65ffc3ca19114c477e13a1d6fd1 [2023-11-23 22:35:21,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:35:21,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:35:21,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:35:21,348 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:35:21,349 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:35:21,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i [2023-11-23 22:35:24,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:35:24,637 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:35:24,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i [2023-11-23 22:35:24,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/data/4ea5194f9/3eaa338c786c49fab7524ff3c1682896/FLAGb93b4489f [2023-11-23 22:35:24,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/data/4ea5194f9/3eaa338c786c49fab7524ff3c1682896 [2023-11-23 22:35:24,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:35:24,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:35:24,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:24,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:35:24,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:35:24,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:24" (1/1) ... [2023-11-23 22:35:24,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a007bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:24, skipping insertion in model container [2023-11-23 22:35:24,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:24" (1/1) ... [2023-11-23 22:35:24,724 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:35:24,934 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_33d75d9a-8397-4cf5-b988-050e7f60d84b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i[914,927] [2023-11-23 22:35:25,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:25,051 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:35:25,069 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_33d75d9a-8397-4cf5-b988-050e7f60d84b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i[914,927] [2023-11-23 22:35:25,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:25,150 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:35:25,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25 WrapperNode [2023-11-23 22:35:25,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:25,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:25,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:35:25,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:35:25,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,230 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159 [2023-11-23 22:35:25,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:25,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:35:25,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:35:25,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:35:25,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,246 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,258 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:35:25,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:35:25,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:35:25,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:35:25,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:35:25,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (1/1) ... [2023-11-23 22:35:25,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:25,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:25,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:35:25,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:35:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:35:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:35:25,356 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:35:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:35:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:35:25,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:35:25,473 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:35:25,475 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:35:25,905 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:35:25,966 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:35:25,966 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:35:25,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:25 BoogieIcfgContainer [2023-11-23 22:35:25,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:35:25,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:35:25,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:35:25,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:35:25,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:35:24" (1/3) ... [2023-11-23 22:35:25,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63eb28ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:25, skipping insertion in model container [2023-11-23 22:35:25,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25" (2/3) ... [2023-11-23 22:35:25,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63eb28ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:25, skipping insertion in model container [2023-11-23 22:35:25,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:25" (3/3) ... [2023-11-23 22:35:25,977 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-9.i [2023-11-23 22:35:26,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:35:26,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:35:26,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:35:26,085 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;@28d526ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:35:26,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:35:26,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 45 states have internal predecessors, (67), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:26,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:35:26,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:26,110 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:26,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:26,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:26,119 INFO L85 PathProgramCache]: Analyzing trace with hash -378312201, now seen corresponding path program 1 times [2023-11-23 22:35:26,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:26,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607053442] [2023-11-23 22:35:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:26,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:26,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607053442] [2023-11-23 22:35:26,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 22:35:26,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734907971] [2023-11-23 22:35:26,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:26,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:26,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:26,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:26,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:35:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:26,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:35:26,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-23 22:35:26,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734907971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:26,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:26,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:26,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959413322] [2023-11-23 22:35:26,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:26,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:35:26,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:26,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:35:26,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:35:26,681 INFO L87 Difference]: Start difference. First operand has 62 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 45 states have internal predecessors, (67), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 22:35:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:26,737 INFO L93 Difference]: Finished difference Result 121 states and 207 transitions. [2023-11-23 22:35:26,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:35:26,740 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 104 [2023-11-23 22:35:26,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:26,750 INFO L225 Difference]: With dead ends: 121 [2023-11-23 22:35:26,751 INFO L226 Difference]: Without dead ends: 60 [2023-11-23 22:35:26,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:35:26,759 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:26,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:35:26,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-23 22:35:26,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-23 22:35:26,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.441860465116279) internal successors, (62), 43 states have internal predecessors, (62), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:26,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 92 transitions. [2023-11-23 22:35:26,825 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 92 transitions. Word has length 104 [2023-11-23 22:35:26,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:26,826 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 92 transitions. [2023-11-23 22:35:26,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 22:35:26,827 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 92 transitions. [2023-11-23 22:35:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:35:26,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:26,834 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:26,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:27,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 22:35:27,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:27,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:27,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1800362243, now seen corresponding path program 1 times [2023-11-23 22:35:27,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:27,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518321819] [2023-11-23 22:35:27,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:27,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:27,131 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:27,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191768947] [2023-11-23 22:35:27,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:27,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:27,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:27,134 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:27,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:35:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:27,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:35:27,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:27,351 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:35:27,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:27,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:27,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518321819] [2023-11-23 22:35:27,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:27,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191768947] [2023-11-23 22:35:27,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191768947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:27,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:27,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:27,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261892998] [2023-11-23 22:35:27,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:27,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:35:27,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:27,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:35:27,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:27,368 INFO L87 Difference]: Start difference. First operand 60 states and 92 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:27,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:27,415 INFO L93 Difference]: Finished difference Result 120 states and 185 transitions. [2023-11-23 22:35:27,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:27,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2023-11-23 22:35:27,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:27,420 INFO L225 Difference]: With dead ends: 120 [2023-11-23 22:35:27,421 INFO L226 Difference]: Without dead ends: 61 [2023-11-23 22:35:27,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:27,427 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:27,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:35:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-23 22:35:27,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-23 22:35:27,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 44 states have internal predecessors, (63), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 93 transitions. [2023-11-23 22:35:27,454 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 93 transitions. Word has length 104 [2023-11-23 22:35:27,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:27,456 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 93 transitions. [2023-11-23 22:35:27,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:27,457 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 93 transitions. [2023-11-23 22:35:27,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:35:27,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:27,460 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:27,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:27,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:27,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:27,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:27,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1473536699, now seen corresponding path program 1 times [2023-11-23 22:35:27,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:27,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721051648] [2023-11-23 22:35:27,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:27,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:27,752 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:27,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [465065373] [2023-11-23 22:35:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:27,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:27,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:27,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:27,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:35:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:28,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 22:35:28,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:28,429 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:35:28,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:28,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:28,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721051648] [2023-11-23 22:35:28,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:28,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465065373] [2023-11-23 22:35:28,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465065373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:28,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:28,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:35:28,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929671906] [2023-11-23 22:35:28,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:28,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:35:28,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:28,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:35:28,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:35:28,433 INFO L87 Difference]: Start difference. First operand 61 states and 93 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:28,968 INFO L93 Difference]: Finished difference Result 226 states and 343 transitions. [2023-11-23 22:35:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 22:35:28,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2023-11-23 22:35:28,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:28,971 INFO L225 Difference]: With dead ends: 226 [2023-11-23 22:35:28,971 INFO L226 Difference]: Without dead ends: 166 [2023-11-23 22:35:28,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:35:28,974 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 171 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:28,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 443 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:35:28,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-23 22:35:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 125. [2023-11-23 22:35:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 102 states have (on average 1.5098039215686274) internal successors, (154), 103 states have internal predecessors, (154), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:35:28,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 194 transitions. [2023-11-23 22:35:28,992 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 194 transitions. Word has length 104 [2023-11-23 22:35:28,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:28,993 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 194 transitions. [2023-11-23 22:35:28,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:28,994 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 194 transitions. [2023-11-23 22:35:28,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:35:28,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:28,997 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:29,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:29,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 22:35:29,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:29,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash -114811203, now seen corresponding path program 1 times [2023-11-23 22:35:29,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:29,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496699076] [2023-11-23 22:35:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:29,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:29,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:29,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425102281] [2023-11-23 22:35:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:29,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:29,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:29,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:29,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:35:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:29,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:35:29,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:29,728 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:35:29,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:29,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:29,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496699076] [2023-11-23 22:35:29,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:29,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425102281] [2023-11-23 22:35:29,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425102281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:29,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:29,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 22:35:29,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012650056] [2023-11-23 22:35:29,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:29,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:35:29,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:29,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:35:29,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:35:29,734 INFO L87 Difference]: Start difference. First operand 125 states and 194 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:30,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:30,177 INFO L93 Difference]: Finished difference Result 285 states and 438 transitions. [2023-11-23 22:35:30,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:35:30,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2023-11-23 22:35:30,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:30,181 INFO L225 Difference]: With dead ends: 285 [2023-11-23 22:35:30,181 INFO L226 Difference]: Without dead ends: 161 [2023-11-23 22:35:30,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:35:30,183 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 103 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:30,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 492 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:35:30,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-23 22:35:30,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 143. [2023-11-23 22:35:30,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 120 states have (on average 1.525) internal successors, (183), 121 states have internal predecessors, (183), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:35:30,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 223 transitions. [2023-11-23 22:35:30,219 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 223 transitions. Word has length 104 [2023-11-23 22:35:30,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:30,220 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 223 transitions. [2023-11-23 22:35:30,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:30,220 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 223 transitions. [2023-11-23 22:35:30,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:35:30,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:30,222 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:30,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:30,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:30,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:30,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:30,447 INFO L85 PathProgramCache]: Analyzing trace with hash -215407043, now seen corresponding path program 1 times [2023-11-23 22:35:30,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:30,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346214987] [2023-11-23 22:35:30,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:30,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:30,501 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:30,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492204744] [2023-11-23 22:35:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:30,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:30,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:30,509 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:30,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:35:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:30,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 22:35:30,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:31,215 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-23 22:35:31,216 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:35:31,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346214987] [2023-11-23 22:35:31,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492204744] [2023-11-23 22:35:31,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492204744] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 22:35:31,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:35:31,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 16 [2023-11-23 22:35:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176568201] [2023-11-23 22:35:31,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:31,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:35:31,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:31,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:35:31,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:35:31,766 INFO L87 Difference]: Start difference. First operand 143 states and 223 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:32,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:32,836 INFO L93 Difference]: Finished difference Result 383 states and 589 transitions. [2023-11-23 22:35:32,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 22:35:32,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2023-11-23 22:35:32,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:32,843 INFO L225 Difference]: With dead ends: 383 [2023-11-23 22:35:32,843 INFO L226 Difference]: Without dead ends: 241 [2023-11-23 22:35:32,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2023-11-23 22:35:32,847 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 163 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:32,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 741 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 22:35:32,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-23 22:35:32,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 162. [2023-11-23 22:35:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 139 states have (on average 1.5467625899280575) internal successors, (215), 140 states have internal predecessors, (215), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:35:32,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 255 transitions. [2023-11-23 22:35:32,887 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 255 transitions. Word has length 104 [2023-11-23 22:35:32,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:32,889 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 255 transitions. [2023-11-23 22:35:32,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 255 transitions. [2023-11-23 22:35:32,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:35:32,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:32,892 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:32,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:33,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:33,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:33,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:33,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1803754945, now seen corresponding path program 1 times [2023-11-23 22:35:33,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:33,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681372085] [2023-11-23 22:35:33,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:33,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:33,153 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:33,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818444440] [2023-11-23 22:35:33,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:33,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:33,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:33,163 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:33,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:35:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:33,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:35:33,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:35:33,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:33,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:33,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681372085] [2023-11-23 22:35:33,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:33,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818444440] [2023-11-23 22:35:33,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818444440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:33,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:33,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 22:35:33,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217584188] [2023-11-23 22:35:33,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:33,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:35:33,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:33,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:35:33,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:35:33,567 INFO L87 Difference]: Start difference. First operand 162 states and 255 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:34,085 INFO L93 Difference]: Finished difference Result 359 states and 560 transitions. [2023-11-23 22:35:34,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:35:34,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2023-11-23 22:35:34,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:34,090 INFO L225 Difference]: With dead ends: 359 [2023-11-23 22:35:34,090 INFO L226 Difference]: Without dead ends: 198 [2023-11-23 22:35:34,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:35:34,092 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 86 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:34,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 532 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:35:34,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-23 22:35:34,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 162. [2023-11-23 22:35:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 139 states have (on average 1.539568345323741) internal successors, (214), 140 states have internal predecessors, (214), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 22:35:34,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 254 transitions. [2023-11-23 22:35:34,110 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 254 transitions. Word has length 104 [2023-11-23 22:35:34,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:34,111 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 254 transitions. [2023-11-23 22:35:34,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:34,111 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 254 transitions. [2023-11-23 22:35:34,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-23 22:35:34,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:34,113 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:34,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:34,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 22:35:34,340 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:34,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:34,340 INFO L85 PathProgramCache]: Analyzing trace with hash 914370067, now seen corresponding path program 1 times [2023-11-23 22:35:34,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:34,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581500404] [2023-11-23 22:35:34,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:34,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:34,385 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:34,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149629945] [2023-11-23 22:35:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:34,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:34,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:34,389 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:34,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:35:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:34,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:35:34,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 174 proven. 42 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-23 22:35:34,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-23 22:35:34,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:34,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581500404] [2023-11-23 22:35:34,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:34,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149629945] [2023-11-23 22:35:34,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149629945] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:35:34,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:35:34,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-23 22:35:34,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993418471] [2023-11-23 22:35:34,909 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:35:34,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 22:35:34,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:34,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 22:35:34,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:35:34,911 INFO L87 Difference]: Start difference. First operand 162 states and 254 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 5 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 22:35:35,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:35,118 INFO L93 Difference]: Finished difference Result 337 states and 518 transitions. [2023-11-23 22:35:35,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 22:35:35,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 5 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 105 [2023-11-23 22:35:35,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:35,122 INFO L225 Difference]: With dead ends: 337 [2023-11-23 22:35:35,122 INFO L226 Difference]: Without dead ends: 176 [2023-11-23 22:35:35,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=152, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:35:35,124 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 175 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:35,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 139 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:35:35,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-23 22:35:35,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 114. [2023-11-23 22:35:35,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 95 states have internal predecessors, (139), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:35,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 169 transitions. [2023-11-23 22:35:35,136 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 169 transitions. Word has length 105 [2023-11-23 22:35:35,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:35,136 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 169 transitions. [2023-11-23 22:35:35,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 5 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 22:35:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 169 transitions. [2023-11-23 22:35:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-23 22:35:35,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:35,139 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:35,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:35,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:35,354 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:35,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:35,355 INFO L85 PathProgramCache]: Analyzing trace with hash -365493611, now seen corresponding path program 1 times [2023-11-23 22:35:35,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:35,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218163479] [2023-11-23 22:35:35,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:35,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:35,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:35,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40632968] [2023-11-23 22:35:35,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:35,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:35,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:35,377 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:35,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:35:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:35,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 22:35:35,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-23 22:35:35,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:37,270 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:35:37,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:37,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218163479] [2023-11-23 22:35:37,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:37,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40632968] [2023-11-23 22:35:37,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40632968] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 22:35:37,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:35:37,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 16 [2023-11-23 22:35:37,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050470556] [2023-11-23 22:35:37,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:37,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:35:37,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:37,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:35:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:35:37,274 INFO L87 Difference]: Start difference. First operand 114 states and 169 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:40,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:40,065 INFO L93 Difference]: Finished difference Result 380 states and 558 transitions. [2023-11-23 22:35:40,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 22:35:40,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2023-11-23 22:35:40,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:40,069 INFO L225 Difference]: With dead ends: 380 [2023-11-23 22:35:40,069 INFO L226 Difference]: Without dead ends: 267 [2023-11-23 22:35:40,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2023-11-23 22:35:40,071 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 319 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:40,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 422 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 22:35:40,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-23 22:35:40,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 114. [2023-11-23 22:35:40,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 95 states have internal predecessors, (139), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:40,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 169 transitions. [2023-11-23 22:35:40,083 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 169 transitions. Word has length 105 [2023-11-23 22:35:40,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:40,084 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 169 transitions. [2023-11-23 22:35:40,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:40,084 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 169 transitions. [2023-11-23 22:35:40,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-23 22:35:40,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:40,086 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:40,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:40,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:40,302 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:40,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:40,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1183142061, now seen corresponding path program 1 times [2023-11-23 22:35:40,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:40,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251564858] [2023-11-23 22:35:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:40,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:40,338 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:40,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1095614473] [2023-11-23 22:35:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:40,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:40,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:40,340 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:40,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 22:35:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:40,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 22:35:40,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-23 22:35:40,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:35:41,411 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:35:41,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:41,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251564858] [2023-11-23 22:35:41,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:41,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095614473] [2023-11-23 22:35:41,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095614473] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 22:35:41,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:35:41,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 16 [2023-11-23 22:35:41,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222931025] [2023-11-23 22:35:41,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:41,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:35:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:35:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:35:41,419 INFO L87 Difference]: Start difference. First operand 114 states and 169 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:42,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:42,406 INFO L93 Difference]: Finished difference Result 349 states and 513 transitions. [2023-11-23 22:35:42,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 22:35:42,407 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2023-11-23 22:35:42,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:42,409 INFO L225 Difference]: With dead ends: 349 [2023-11-23 22:35:42,409 INFO L226 Difference]: Without dead ends: 236 [2023-11-23 22:35:42,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2023-11-23 22:35:42,411 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 213 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:42,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 555 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:35:42,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-23 22:35:42,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 97. [2023-11-23 22:35:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 78 states have (on average 1.4230769230769231) internal successors, (111), 78 states have internal predecessors, (111), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 141 transitions. [2023-11-23 22:35:42,424 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 141 transitions. Word has length 105 [2023-11-23 22:35:42,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:42,425 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 141 transitions. [2023-11-23 22:35:42,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:42,425 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 141 transitions. [2023-11-23 22:35:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-23 22:35:42,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:42,427 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:42,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:42,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:42,644 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:42,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:42,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1183791712, now seen corresponding path program 1 times [2023-11-23 22:35:42,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:42,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337667696] [2023-11-23 22:35:42,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:42,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:42,662 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:42,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937359384] [2023-11-23 22:35:42,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:42,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:42,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:42,664 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:42,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 22:35:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:42,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:35:42,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:42,841 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:35:42,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:42,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:42,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337667696] [2023-11-23 22:35:42,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:35:42,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937359384] [2023-11-23 22:35:42,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937359384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:42,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:42,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:35:42,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005425232] [2023-11-23 22:35:42,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:42,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:35:42,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:42,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:35:42,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:35:42,846 INFO L87 Difference]: Start difference. First operand 97 states and 141 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:43,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:43,098 INFO L93 Difference]: Finished difference Result 251 states and 357 transitions. [2023-11-23 22:35:43,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:35:43,100 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), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 106 [2023-11-23 22:35:43,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:43,102 INFO L225 Difference]: With dead ends: 251 [2023-11-23 22:35:43,102 INFO L226 Difference]: Without dead ends: 155 [2023-11-23 22:35:43,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:35:43,104 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 45 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:43,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 337 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:35:43,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-23 22:35:43,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 138. [2023-11-23 22:35:43,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 115 states have (on average 1.391304347826087) internal successors, (160), 116 states have internal predecessors, (160), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 22:35:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 194 transitions. [2023-11-23 22:35:43,119 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 194 transitions. Word has length 106 [2023-11-23 22:35:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:43,120 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 194 transitions. [2023-11-23 22:35:43,120 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), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 194 transitions. [2023-11-23 22:35:43,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-23 22:35:43,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:43,122 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:43,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:43,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 22:35:43,338 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:43,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:43,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1592956958, now seen corresponding path program 1 times [2023-11-23 22:35:43,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:43,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113674923] [2023-11-23 22:35:43,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:43,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:43,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:35:43,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181297113] [2023-11-23 22:35:43,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:43,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:35:43,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:43,357 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:35:43,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 22:35:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:35:44,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:35:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:35:44,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:35:44,188 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:35:44,189 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:35:44,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:44,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 22:35:44,400 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:44,403 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:35:44,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 22:35:44,489 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-23 22:35:44,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 22:35:44,506 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-23 22:35:44,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 22:35:44,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 22:35:44,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-23 22:35:44,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-23 22:35:44,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-23 22:35:44,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-23 22:35:44,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 22:35:44,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-23 22:35:44,509 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-23 22:35:44,509 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated [2023-11-23 22:35:44,509 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-23 22:35:44,509 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-23 22:35:44,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:35:44 BoogieIcfgContainer [2023-11-23 22:35:44,546 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:35:44,547 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:35:44,547 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:35:44,547 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:35:44,548 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:25" (3/4) ... [2023-11-23 22:35:44,550 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:35:44,551 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:35:44,552 INFO L158 Benchmark]: Toolchain (without parser) took 19881.80ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 90.1MB in the beginning and 52.8MB in the end (delta: 37.3MB). Peak memory consumption was 99.2MB. Max. memory is 16.1GB. [2023-11-23 22:35:44,552 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:35:44,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.93ms. Allocated memory is still 134.2MB. Free memory was 90.1MB in the beginning and 101.0MB in the end (delta: -10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:35:44,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.60ms. Allocated memory is still 134.2MB. Free memory was 101.0MB in the beginning and 98.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:35:44,553 INFO L158 Benchmark]: Boogie Preprocessor took 45.87ms. Allocated memory is still 134.2MB. Free memory was 98.3MB in the beginning and 94.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:35:44,553 INFO L158 Benchmark]: RCFGBuilder took 688.90ms. Allocated memory is still 134.2MB. Free memory was 94.8MB in the beginning and 73.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 22:35:44,554 INFO L158 Benchmark]: TraceAbstraction took 18576.84ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 72.5MB in the beginning and 52.8MB in the end (delta: 19.6MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2023-11-23 22:35:44,554 INFO L158 Benchmark]: Witness Printer took 4.07ms. Allocated memory is still 195.0MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:35:44,556 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.93ms. Allocated memory is still 134.2MB. Free memory was 90.1MB in the beginning and 101.0MB in the end (delta: -10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.60ms. Allocated memory is still 134.2MB. Free memory was 101.0MB in the beginning and 98.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.87ms. Allocated memory is still 134.2MB. Free memory was 98.3MB in the beginning and 94.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 688.90ms. Allocated memory is still 134.2MB. Free memory was 94.8MB in the beginning and 73.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 18576.84ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 72.5MB in the beginning and 52.8MB in the end (delta: 19.6MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. * Witness Printer took 4.07ms. Allocated memory is still 195.0MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 119, overapproximation of shiftLeft at line 119. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] signed short int var_1_3 = 1; [L24] signed long int var_1_5 = -64; [L25] signed char var_1_6 = 10; [L26] signed char var_1_7 = 5; [L27] double var_1_8 = 16.25; [L28] double var_1_9 = 1.8; [L29] unsigned char var_1_10 = 32; [L30] unsigned char var_1_11 = 64; [L31] unsigned short int var_1_12 = 16; [L32] unsigned long int var_1_13 = 128; [L33] unsigned char var_1_15 = 1; [L34] unsigned short int var_1_16 = 256; [L35] signed char var_1_18 = -2; [L36] unsigned char last_1_var_1_10 = 32; [L37] unsigned short int last_1_var_1_12 = 16; [L38] unsigned long int last_1_var_1_13 = 128; [L123] isInitial = 1 [L124] FCALL initially() [L125] COND TRUE 1 [L126] CALL updateLastVariables() [L114] last_1_var_1_10 = var_1_10 [L115] last_1_var_1_12 = var_1_12 [L116] last_1_var_1_13 = var_1_13 [L126] RET updateLastVariables() [L127] CALL updateVariables() [L89] var_1_3 = __VERIFIER_nondet_short() [L90] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L90] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L91] CALL assume_abort_if_not(var_1_3 <= 8) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L91] RET assume_abort_if_not(var_1_3 <= 8) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=-64, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L92] var_1_5 = __VERIFIER_nondet_long() [L93] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L93] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L94] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L94] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L95] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L95] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=10, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L96] var_1_6 = __VERIFIER_nondet_char() [L97] CALL assume_abort_if_not(var_1_6 >= 6) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L97] RET assume_abort_if_not(var_1_6 >= 6) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L98] CALL assume_abort_if_not(var_1_6 <= 12) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L98] RET assume_abort_if_not(var_1_6 <= 12) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=5, var_1_8=65/4, var_1_9=9/5] [L99] var_1_7 = __VERIFIER_nondet_char() [L100] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L100] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L101] CALL assume_abort_if_not(var_1_7 <= 6) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L101] RET assume_abort_if_not(var_1_7 <= 6) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0, var_1_8=65/4, var_1_9=9/5] [L102] var_1_8 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0, var_1_9=9/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0, var_1_9=9/5] [L103] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0, var_1_9=9/5] [L104] var_1_9 = __VERIFIER_nondet_double() [L105] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L105] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=64, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L106] var_1_11 = __VERIFIER_nondet_uchar() [L107] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L107] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L108] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L108] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=16, var_1_13=128, var_1_15=1, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L109] var_1_15 = __VERIFIER_nondet_uchar() [L110] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=16, var_1_13=128, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=16, var_1_13=128, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L110] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=16, var_1_13=128, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L111] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=16, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=16, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L111] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=16, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L127] RET updateVariables() [L128] CALL step() [L42] COND TRUE ((var_1_6 >> 2) * last_1_var_1_13) > last_1_var_1_10 [L43] var_1_12 = var_1_6 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=32, var_1_11=6, var_1_12=6, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L45] signed long int stepLocal_2 = last_1_var_1_12 + var_1_7; VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, stepLocal_2=16, var_1_10=32, var_1_11=6, var_1_12=6, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L46] COND TRUE var_1_6 <= stepLocal_2 [L47] var_1_10 = var_1_11 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, stepLocal_2=16, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L51] EXPR 1 << var_1_10 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, stepLocal_2=16, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=128, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L51] COND FALSE !((1 << var_1_10) != (-500 / -100)) [L58] var_1_13 = var_1_6 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, stepLocal_2=16, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=256, var_1_18=-2, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L60] var_1_18 = var_1_3 [L61] signed long int stepLocal_4 = (((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64))); [L62] unsigned char stepLocal_3 = var_1_10; VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, stepLocal_2=16, stepLocal_3=6, stepLocal_4=6, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=256, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L63] COND FALSE !((- var_1_9) <= var_1_8) [L76] var_1_16 = var_1_10 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, stepLocal_2=16, stepLocal_3=6, stepLocal_4=6, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L78] signed long int stepLocal_1 = (var_1_10 & 0) * var_1_5; VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, stepLocal_1=0, stepLocal_2=16, stepLocal_3=6, stepLocal_4=6, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L79] EXPR var_1_16 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, stepLocal_1=0, stepLocal_2=16, stepLocal_3=6, stepLocal_4=6, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L79] signed long int stepLocal_0 = var_1_16 >> var_1_3; [L80] COND FALSE !(stepLocal_0 == (var_1_10 / var_1_5)) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, stepLocal_0=6, stepLocal_1=0, stepLocal_2=16, stepLocal_3=6, stepLocal_4=6, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L128] RET step() [L129] CALL, EXPR property() [L119] EXPR var_1_16 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L119] EXPR ((var_1_16 >> var_1_3) == (var_1_10 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_10 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L119] EXPR (((((var_1_16 >> var_1_3) == (var_1_10 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_10 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (last_1_var_1_12 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * last_1_var_1_13) > last_1_var_1_10) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_10) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_12 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L119] EXPR 1 << var_1_10 VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L119] EXPR (((((var_1_16 >> var_1_3) == (var_1_10 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_10 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (last_1_var_1_12 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * last_1_var_1_13) > last_1_var_1_10) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_10) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_12 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6))) VAL [isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L119-L120] return (((((((var_1_16 >> var_1_3) == (var_1_10 / var_1_5)) ? (((var_1_3 << (var_1_6 - var_1_7)) > ((var_1_10 & 0) * var_1_5)) ? (var_1_1 == ((double) ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))))) : (var_1_1 == ((double) var_1_8))) : 1) && ((var_1_6 <= (last_1_var_1_12 + var_1_7)) ? (var_1_10 == ((unsigned char) var_1_11)) : (var_1_10 == ((unsigned char) (var_1_3 + var_1_7))))) && ((((var_1_6 >> 2) * last_1_var_1_13) > last_1_var_1_10) ? (var_1_12 == ((unsigned short int) var_1_6)) : 1)) && (((1 << var_1_10) != (-500 / -100)) ? (((var_1_6 - var_1_3) >= (var_1_12 + 256)) ? (var_1_13 == ((unsigned long int) var_1_11)) : (var_1_13 == ((unsigned long int) var_1_12))) : (var_1_13 == ((unsigned long int) var_1_6)))) && (((- var_1_9) <= var_1_8) ? (var_1_15 ? ((((((var_1_11) > ((var_1_12 * -64))) ? (var_1_11) : ((var_1_12 * -64)))) < var_1_12) ? ((var_1_13 == var_1_10) ? (var_1_16 == ((unsigned short int) var_1_11)) : 1) : (var_1_16 == ((unsigned short int) 256))) : (var_1_16 == ((unsigned short int) var_1_3))) : (var_1_16 == ((unsigned short int) var_1_10)))) && (var_1_18 == ((signed char) var_1_3)) ; [L129] RET, EXPR property() [L129] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, last_1_var_1_12=16, last_1_var_1_13=128, var_1_10=6, var_1_11=6, var_1_12=6, var_1_13=6, var_1_15=0, var_1_16=6, var_1_18=0, var_1_1=11/2, var_1_3=0, var_1_5=2, var_1_6=6, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.3s, OverallIterations: 11, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1275 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1275 mSDsluCounter, 3921 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2905 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2258 IncrementalHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 1016 mSDtfsCounter, 2258 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1501 GetRequests, 1381 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=5, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 545 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1255 NumberOfCodeBlocks, 1255 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1450 ConstructedInterpolants, 15 QuantifiedInterpolants, 5278 SizeOfPredicates, 84 NumberOfNonLiveVariables, 2648 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 14 InterpolantComputations, 9 PerfectInterpolantSequences, 5778/5880 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 could not prove your program: unable to determine feasibility of some traces [2023-11-23 22:35:44,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ --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 3eb5b7aaef172dee0e37bd16c0d6ef7d510ec65ffc3ca19114c477e13a1d6fd1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:35:47,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:35:47,344 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-23 22:35:47,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:35:47,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:35:47,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:35:47,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:35:47,401 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:35:47,402 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:35:47,407 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:35:47,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:35:47,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:35:47,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:35:47,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:35:47,411 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:35:47,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:35:47,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:35:47,413 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:35:47,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:35:47,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:35:47,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:35:47,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:35:47,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:35:47,417 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:35:47,418 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:35:47,418 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:35:47,419 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:35:47,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:35:47,420 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:35:47,420 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:35:47,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:35:47,422 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:35:47,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:35:47,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:47,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:35:47,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:35:47,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:35:47,425 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:35:47,425 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:35:47,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:35:47,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:35:47,426 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:35:47,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:35:47,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:35:47,427 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:35:47,428 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_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eb5b7aaef172dee0e37bd16c0d6ef7d510ec65ffc3ca19114c477e13a1d6fd1 [2023-11-23 22:35:47,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:35:47,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:35:47,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:35:47,904 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:35:47,905 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:35:47,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i [2023-11-23 22:35:51,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:35:51,349 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:35:51,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i [2023-11-23 22:35:51,364 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/data/ab1897011/bf9d8767f2ab42b790812254656eddcf/FLAGc7c482fd7 [2023-11-23 22:35:51,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/data/ab1897011/bf9d8767f2ab42b790812254656eddcf [2023-11-23 22:35:51,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:35:51,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:35:51,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:51,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:35:51,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:35:51,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:51,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64995376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51, skipping insertion in model container [2023-11-23 22:35:51,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:51,455 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:35:51,659 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_33d75d9a-8397-4cf5-b988-050e7f60d84b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i[914,927] [2023-11-23 22:35:51,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:51,775 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:35:51,794 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_33d75d9a-8397-4cf5-b988-050e7f60d84b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-9.i[914,927] [2023-11-23 22:35:51,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:51,904 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:35:51,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51 WrapperNode [2023-11-23 22:35:51,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:51,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:51,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:35:51,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:35:51,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:51,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:51,982 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121 [2023-11-23 22:35:51,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:51,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:35:51,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:35:51,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:35:51,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:51,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:52,001 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:52,014 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:35:52,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:52,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:52,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:52,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:52,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:52,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:52,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:35:52,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:35:52,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:35:52,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:35:52,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (1/1) ... [2023-11-23 22:35:52,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:52,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:52,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:35:52,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:35:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:35:52,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 22:35:52,135 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:35:52,135 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:35:52,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:35:52,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:35:52,229 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:35:52,232 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:35:52,786 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:35:52,830 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:35:52,831 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:35:52,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:52 BoogieIcfgContainer [2023-11-23 22:35:52,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:35:52,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:35:52,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:35:52,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:35:52,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:35:51" (1/3) ... [2023-11-23 22:35:52,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4a10eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:52, skipping insertion in model container [2023-11-23 22:35:52,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:51" (2/3) ... [2023-11-23 22:35:52,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4a10eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:52, skipping insertion in model container [2023-11-23 22:35:52,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:52" (3/3) ... [2023-11-23 22:35:52,863 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-9.i [2023-11-23 22:35:52,884 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:35:52,884 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:35:52,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:35:52,941 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;@589bab0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:35:52,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:35:52,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:52,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 22:35:52,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:52,960 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:52,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:52,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:52,966 INFO L85 PathProgramCache]: Analyzing trace with hash -2001609788, now seen corresponding path program 1 times [2023-11-23 22:35:52,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:35:52,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903333413] [2023-11-23 22:35:52,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:52,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:35:52,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:35:52,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:35:53,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 22:35:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:53,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:35:53,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-23 22:35:53,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:53,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:35:53,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903333413] [2023-11-23 22:35:53,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903333413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:53,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:53,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:53,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479264974] [2023-11-23 22:35:53,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:53,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:35:53,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:35:53,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:35:53,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:35:53,452 INFO L87 Difference]: Start difference. First operand has 49 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:53,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:53,543 INFO L93 Difference]: Finished difference Result 95 states and 165 transitions. [2023-11-23 22:35:53,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:35:53,552 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2023-11-23 22:35:53,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:53,565 INFO L225 Difference]: With dead ends: 95 [2023-11-23 22:35:53,565 INFO L226 Difference]: Without dead ends: 47 [2023-11-23 22:35:53,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:35:53,574 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:53,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:35:53,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-23 22:35:53,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-23 22:35:53,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 22:35:53,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 70 transitions. [2023-11-23 22:35:53,651 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 70 transitions. Word has length 96 [2023-11-23 22:35:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:53,654 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 70 transitions. [2023-11-23 22:35:53,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 22:35:53,655 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 70 transitions. [2023-11-23 22:35:53,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 22:35:53,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:53,664 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:53,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:35:53,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:35:53,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:53,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:53,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1332527400, now seen corresponding path program 1 times [2023-11-23 22:35:53,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:35:53,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894652417] [2023-11-23 22:35:53,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:53,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:35:53,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:35:53,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 22:35:53,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33d75d9a-8397-4cf5-b988-050e7f60d84b/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 22:35:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:54,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-23 22:35:54,128 INFO L285 TraceCheckSpWp]: Computing forward predicates...