./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya --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 68bb6d7d6818d105c8d36601291f0fbd6a765091c35c37006c1280fceb3f620a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:07:59,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:07:59,339 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 07:07:59,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:07:59,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:07:59,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:07:59,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:07:59,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:07:59,368 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:07:59,369 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:07:59,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:07:59,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:07:59,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:07:59,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:07:59,372 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:07:59,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:07:59,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:07:59,374 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:07:59,374 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:07:59,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:07:59,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:07:59,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:07:59,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:07:59,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:07:59,378 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:07:59,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:07:59,379 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:07:59,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:07:59,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:07:59,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:07:59,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:07:59,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:07:59,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:07:59,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:07:59,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:07:59,383 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:07:59,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:07:59,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:07:59,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:07:59,384 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:07:59,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:07:59,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:07:59,385 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_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68bb6d7d6818d105c8d36601291f0fbd6a765091c35c37006c1280fceb3f620a [2023-11-29 07:07:59,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:07:59,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:07:59,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:07:59,615 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:07:59,615 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:07:59,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c [2023-11-29 07:08:02,378 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:08:02,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:08:02,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c [2023-11-29 07:08:02,533 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/data/f67df2d4e/32da42c251fd4a9fa7b823e21152958b/FLAGf27c608cd [2023-11-29 07:08:02,545 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/data/f67df2d4e/32da42c251fd4a9fa7b823e21152958b [2023-11-29 07:08:02,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:08:02,548 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:08:02,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:08:02,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:08:02,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:08:02,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6036dba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02, skipping insertion in model container [2023-11-29 07:08:02,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,575 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:08:02,688 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_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c[597,610] [2023-11-29 07:08:02,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:08:02,714 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:08:02,727 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_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound20.c[597,610] [2023-11-29 07:08:02,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:08:02,748 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:08:02,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02 WrapperNode [2023-11-29 07:08:02,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:08:02,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:08:02,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:08:02,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:08:02,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,778 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2023-11-29 07:08:02,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:08:02,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:08:02,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:08:02,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:08:02,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,798 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 07:08:02,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:08:02,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:08:02,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:08:02,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:08:02,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (1/1) ... [2023-11-29 07:08:02,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:08:02,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:02,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:08:02,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:08:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:08:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:08:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:08:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:08:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 07:08:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 07:08:02,944 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:08:02,946 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:08:03,064 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:08:03,086 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:08:03,086 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:08:03,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:03 BoogieIcfgContainer [2023-11-29 07:08:03,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:08:03,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:08:03,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:08:03,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:08:03,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:08:02" (1/3) ... [2023-11-29 07:08:03,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc09838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:03, skipping insertion in model container [2023-11-29 07:08:03,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:02" (2/3) ... [2023-11-29 07:08:03,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc09838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:03, skipping insertion in model container [2023-11-29 07:08:03,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:03" (3/3) ... [2023-11-29 07:08:03,096 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound20.c [2023-11-29 07:08:03,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:08:03,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 07:08:03,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:08:03,174 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;@540980fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:08:03,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 07:08:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:08:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 07:08:03,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:03,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:03,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:03,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:03,193 INFO L85 PathProgramCache]: Analyzing trace with hash -26250642, now seen corresponding path program 1 times [2023-11-29 07:08:03,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:03,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865762296] [2023-11-29 07:08:03,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:03,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:03,305 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:03,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611730785] [2023-11-29 07:08:03,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:03,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:03,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:03,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:03,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:08:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:03,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:08:03,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:08:03,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:03,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865762296] [2023-11-29 07:08:03,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:03,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611730785] [2023-11-29 07:08:03,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611730785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:03,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:03,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:08:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623859579] [2023-11-29 07:08:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:03,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:08:03,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:03,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:08:03,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:08:03,562 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:08:03,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:03,686 INFO L93 Difference]: Finished difference Result 46 states and 66 transitions. [2023-11-29 07:08:03,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:08:03,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 07:08:03,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:03,696 INFO L225 Difference]: With dead ends: 46 [2023-11-29 07:08:03,696 INFO L226 Difference]: Without dead ends: 24 [2023-11-29 07:08:03,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:08:03,703 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:03,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 41 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:08:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-29 07:08:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-11-29 07:08:03,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:08:03,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-11-29 07:08:03,742 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 7 [2023-11-29 07:08:03,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:03,742 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-11-29 07:08:03,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:08:03,743 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-29 07:08:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 07:08:03,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:03,744 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:03,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:08:03,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 07:08:03,948 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:03,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:03,949 INFO L85 PathProgramCache]: Analyzing trace with hash -479331439, now seen corresponding path program 1 times [2023-11-29 07:08:03,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:03,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224869827] [2023-11-29 07:08:03,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:03,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:03,962 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:03,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524190643] [2023-11-29 07:08:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:03,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:03,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:03,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:03,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:08:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:04,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 07:08:04,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:08:04,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 07:08:04,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:04,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224869827] [2023-11-29 07:08:04,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:04,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524190643] [2023-11-29 07:08:04,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524190643] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:04,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:04,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2023-11-29 07:08:04,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474300896] [2023-11-29 07:08:04,333 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:04,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:08:04,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:04,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:08:04,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:08:04,337 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:08:04,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:04,596 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2023-11-29 07:08:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:08:04,597 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2023-11-29 07:08:04,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:04,599 INFO L225 Difference]: With dead ends: 40 [2023-11-29 07:08:04,599 INFO L226 Difference]: Without dead ends: 33 [2023-11-29 07:08:04,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:08:04,601 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 24 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:04,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 83 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:08:04,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-29 07:08:04,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2023-11-29 07:08:04,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:08:04,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2023-11-29 07:08:04,613 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2023-11-29 07:08:04,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:04,614 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2023-11-29 07:08:04,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:08:04,614 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-29 07:08:04,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 07:08:04,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:04,616 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:04,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 07:08:04,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:04,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:04,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:04,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1366888132, now seen corresponding path program 1 times [2023-11-29 07:08:04,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:04,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867323414] [2023-11-29 07:08:04,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:04,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:04,829 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:04,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234753213] [2023-11-29 07:08:04,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:04,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:04,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:04,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:04,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:08:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:04,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:08:04,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:04,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:08:04,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:08:04,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:04,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867323414] [2023-11-29 07:08:04,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:04,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234753213] [2023-11-29 07:08:04,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234753213] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:04,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:04,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-29 07:08:04,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315319749] [2023-11-29 07:08:04,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:04,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:08:04,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:04,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:08:04,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:08:04,962 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:08:05,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:05,039 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2023-11-29 07:08:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:08:05,040 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-29 07:08:05,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:05,041 INFO L225 Difference]: With dead ends: 72 [2023-11-29 07:08:05,041 INFO L226 Difference]: Without dead ends: 66 [2023-11-29 07:08:05,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:08:05,043 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 34 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:05,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 93 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:08:05,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-29 07:08:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2023-11-29 07:08:05,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:08:05,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2023-11-29 07:08:05,061 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 18 [2023-11-29 07:08:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:05,061 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2023-11-29 07:08:05,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:08:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2023-11-29 07:08:05,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 07:08:05,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:05,062 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:05,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 07:08:05,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:05,263 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:05,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:05,264 INFO L85 PathProgramCache]: Analyzing trace with hash -382706270, now seen corresponding path program 1 times [2023-11-29 07:08:05,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:05,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937824235] [2023-11-29 07:08:05,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:05,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:05,276 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:05,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1795011255] [2023-11-29 07:08:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:05,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:05,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:05,278 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:05,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:08:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:05,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 07:08:05,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:08:05,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:06,020 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:08:06,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:06,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937824235] [2023-11-29 07:08:06,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:06,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795011255] [2023-11-29 07:08:06,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795011255] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:06,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:06,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 23 [2023-11-29 07:08:06,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193261247] [2023-11-29 07:08:06,021 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:06,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 07:08:06,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:06,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 07:08:06,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:08:06,023 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 23 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 07:08:06,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:06,789 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2023-11-29 07:08:06,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 07:08:06,790 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 24 [2023-11-29 07:08:06,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:06,792 INFO L225 Difference]: With dead ends: 64 [2023-11-29 07:08:06,792 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 07:08:06,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=261, Invalid=1299, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 07:08:06,794 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 51 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:06,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 107 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:08:06,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 07:08:06,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2023-11-29 07:08:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 39 states have internal predecessors, (44), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 07:08:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2023-11-29 07:08:06,814 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 24 [2023-11-29 07:08:06,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:06,815 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2023-11-29 07:08:06,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.736842105263158) internal successors, (33), 20 states have internal predecessors, (33), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 07:08:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2023-11-29 07:08:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 07:08:06,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:06,817 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:06,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 07:08:07,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:07,020 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:07,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:07,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2080125809, now seen corresponding path program 1 times [2023-11-29 07:08:07,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:07,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009096919] [2023-11-29 07:08:07,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:07,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:07,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:07,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167936914] [2023-11-29 07:08:07,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:07,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:07,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:07,036 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:07,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:08:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:07,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:08:07,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:08:07,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 44 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:08:07,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:07,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009096919] [2023-11-29 07:08:07,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:07,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167936914] [2023-11-29 07:08:07,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167936914] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:07,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:07,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 07:08:07,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572897549] [2023-11-29 07:08:07,314 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:07,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:08:07,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:07,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:08:07,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:08:07,316 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 07:08:07,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:07,502 INFO L93 Difference]: Finished difference Result 115 states and 130 transitions. [2023-11-29 07:08:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 07:08:07,503 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 48 [2023-11-29 07:08:07,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:07,505 INFO L225 Difference]: With dead ends: 115 [2023-11-29 07:08:07,505 INFO L226 Difference]: Without dead ends: 109 [2023-11-29 07:08:07,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:08:07,506 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:07,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 124 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:08:07,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-29 07:08:07,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-11-29 07:08:07,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.1264367816091954) internal successors, (98), 87 states have internal predecessors, (98), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 07:08:07,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2023-11-29 07:08:07,536 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 48 [2023-11-29 07:08:07,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:07,536 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2023-11-29 07:08:07,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 07:08:07,536 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2023-11-29 07:08:07,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 07:08:07,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:07,541 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:07,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 07:08:07,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:07,741 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:07,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:07,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1893266719, now seen corresponding path program 2 times [2023-11-29 07:08:07,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:07,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678136035] [2023-11-29 07:08:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:07,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:07,759 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:07,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489890309] [2023-11-29 07:08:07,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:08:07,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:07,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:07,760 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:07,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:08:07,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:08:07,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:08:07,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 07:08:07,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 20 proven. 470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:08:08,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 20 proven. 290 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 07:08:08,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:08,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678136035] [2023-11-29 07:08:08,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:08,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489890309] [2023-11-29 07:08:08,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489890309] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:08,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:08,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2023-11-29 07:08:08,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770263702] [2023-11-29 07:08:08,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:08,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 07:08:08,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:08,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 07:08:08,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=316, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:08:08,389 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 20 states have call successors, (21), 12 states have call predecessors, (21), 11 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-29 07:08:08,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:08,844 INFO L93 Difference]: Finished difference Result 215 states and 244 transitions. [2023-11-29 07:08:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-29 07:08:08,845 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 20 states have call successors, (21), 12 states have call predecessors, (21), 11 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 108 [2023-11-29 07:08:08,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:08,848 INFO L225 Difference]: With dead ends: 215 [2023-11-29 07:08:08,848 INFO L226 Difference]: Without dead ends: 209 [2023-11-29 07:08:08,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 190 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=665, Invalid=1141, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 07:08:08,851 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 118 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:08,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 184 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:08:08,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-29 07:08:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-11-29 07:08:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 167 states have (on average 1.125748502994012) internal successors, (188), 167 states have internal predecessors, (188), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:08:08,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 229 transitions. [2023-11-29 07:08:08,903 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 229 transitions. Word has length 108 [2023-11-29 07:08:08,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:08,903 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 229 transitions. [2023-11-29 07:08:08,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 20 states have call successors, (21), 12 states have call predecessors, (21), 11 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-29 07:08:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 229 transitions. [2023-11-29 07:08:08,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 07:08:08,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:08,908 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:08,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:08:09,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 07:08:09,112 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:09,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:09,112 INFO L85 PathProgramCache]: Analyzing trace with hash -211551935, now seen corresponding path program 3 times [2023-11-29 07:08:09,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:09,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083418331] [2023-11-29 07:08:09,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:09,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:09,140 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:09,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764809682] [2023-11-29 07:08:09,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:08:09,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:09,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:09,141 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:09,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:08:09,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 07:08:09,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:08:09,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 07:08:09,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 212 proven. 1 refuted. 0 times theorem prover too weak. 1767 trivial. 0 not checked. [2023-11-29 07:08:09,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 96 proven. 117 refuted. 0 times theorem prover too weak. 1767 trivial. 0 not checked. [2023-11-29 07:08:09,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:09,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083418331] [2023-11-29 07:08:09,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:09,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764809682] [2023-11-29 07:08:09,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764809682] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:09,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:09,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2023-11-29 07:08:09,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016876923] [2023-11-29 07:08:09,926 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:09,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 07:08:09,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:09,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 07:08:09,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:08:09,929 INFO L87 Difference]: Start difference. First operand 209 states and 229 transitions. Second operand has 18 states, 14 states have (on average 2.357142857142857) internal successors, (33), 17 states have internal predecessors, (33), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:08:10,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:10,163 INFO L93 Difference]: Finished difference Result 408 states and 447 transitions. [2023-11-29 07:08:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:08:10,163 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 2.357142857142857) internal successors, (33), 17 states have internal predecessors, (33), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 208 [2023-11-29 07:08:10,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:10,168 INFO L225 Difference]: With dead ends: 408 [2023-11-29 07:08:10,168 INFO L226 Difference]: Without dead ends: 402 [2023-11-29 07:08:10,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 397 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:08:10,170 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 23 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:10,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 61 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:08:10,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-29 07:08:10,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 399. [2023-11-29 07:08:10,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 319 states have (on average 1.1253918495297806) internal successors, (359), 319 states have internal predecessors, (359), 40 states have call successors, (40), 40 states have call predecessors, (40), 39 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 07:08:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 438 transitions. [2023-11-29 07:08:10,257 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 438 transitions. Word has length 208 [2023-11-29 07:08:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:10,258 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 438 transitions. [2023-11-29 07:08:10,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 2.357142857142857) internal successors, (33), 17 states have internal predecessors, (33), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:08:10,258 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 438 transitions. [2023-11-29 07:08:10,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 07:08:10,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:10,262 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:10,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:08:10,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 07:08:10,468 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:10,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:10,468 INFO L85 PathProgramCache]: Analyzing trace with hash 468506435, now seen corresponding path program 1 times [2023-11-29 07:08:10,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:10,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559014469] [2023-11-29 07:08:10,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:10,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:10,488 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:10,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382875041] [2023-11-29 07:08:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:10,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:10,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:10,490 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:10,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:08:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:08:10,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 07:08:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:08:10,806 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 07:08:10,806 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 07:08:10,807 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 07:08:10,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:08:11,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 07:08:11,012 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2023-11-29 07:08:11,016 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 07:08:11,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,056 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,057 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,058 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,059 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,060 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,061 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,064 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,070 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:08:11 BoogieIcfgContainer [2023-11-29 07:08:11,101 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 07:08:11,102 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 07:08:11,102 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 07:08:11,102 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 07:08:11,103 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:03" (3/4) ... [2023-11-29 07:08:11,104 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 07:08:11,118 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,123 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,124 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,124 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,125 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,125 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,126 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,126 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,129 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-29 07:08:11,207 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 07:08:11,207 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 07:08:11,208 INFO L158 Benchmark]: Toolchain (without parser) took 8659.75ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 84.4MB in the beginning and 52.3MB in the end (delta: 32.1MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. [2023-11-29 07:08:11,208 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:08:11,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.62ms. Allocated memory is still 123.7MB. Free memory was 84.0MB in the beginning and 73.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 07:08:11,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.77ms. Allocated memory is still 123.7MB. Free memory was 73.1MB in the beginning and 71.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 07:08:11,209 INFO L158 Benchmark]: Boogie Preprocessor took 29.41ms. Allocated memory is still 123.7MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 07:08:11,209 INFO L158 Benchmark]: RCFGBuilder took 277.09ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 58.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 07:08:11,210 INFO L158 Benchmark]: TraceAbstraction took 8012.16ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 57.9MB in the beginning and 62.7MB in the end (delta: -4.9MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2023-11-29 07:08:11,210 INFO L158 Benchmark]: Witness Printer took 104.93ms. Allocated memory is still 180.4MB. Free memory was 61.7MB in the beginning and 52.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 07:08:11,212 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.62ms. Allocated memory is still 123.7MB. Free memory was 84.0MB in the beginning and 73.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.77ms. Allocated memory is still 123.7MB. Free memory was 73.1MB in the beginning and 71.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.41ms. Allocated memory is still 123.7MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.09ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 58.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8012.16ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 57.9MB in the beginning and 62.7MB in the end (delta: -4.9MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * Witness Printer took 104.93ms. Allocated memory is still 180.4MB. Free memory was 61.7MB in the beginning and 52.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int counter = 0; [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [X=2147483647, Y=56512727, counter=0, v=-2034458193, x=0, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=1, v=-2034458193, x=0, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=1, v=-2034458193, x=0, x=0, x=0, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=1] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=1, v=-2034458193, x=0, x=0, x=0, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=1, v=-2034458193, x=0, x=0, x=0, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=1, v=-1921432739, x=0, x=0, x=0, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=1, v=-1921432739, x=0, x=0, x=1, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=2, v=-1921432739, x=0, x=0, x=1, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=2, v=-1921432739, x=0, x=1, x=56512727, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=2] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=2, v=-1921432739, x=0, x=1, x=56512727, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=2, v=-1921432739, x=0, x=1, x=56512727, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=2, v=-1808407285, x=0, x=1, x=56512727, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=2, v=-1808407285, x=0, x=2, x=56512727, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=3, v=-1808407285, x=0, x=2, x=56512727, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=3, v=-1808407285, x=0, x=113025454, x=2, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=3] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=3, v=-1808407285, x=0, x=113025454, x=2, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=3, v=-1808407285, x=0, x=113025454, x=2, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=3, v=-1695381831, x=0, x=113025454, x=2, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=3, v=-1695381831, x=0, x=113025454, x=3, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=4, v=-1695381831, x=0, x=113025454, x=3, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=4, v=-1695381831, x=0, x=169538181, x=3, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=4] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=4, v=-1695381831, x=0, x=169538181, x=3, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=4, v=-1695381831, x=0, x=169538181, x=3, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=4, v=-1582356377, x=0, x=169538181, x=3, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=4, v=-1582356377, x=0, x=169538181, x=4, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=5, v=-1582356377, x=0, x=169538181, x=4, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=5, v=-1582356377, x=0, x=226050908, x=4, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=5] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=5, v=-1582356377, x=0, x=226050908, x=4, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=5, v=-1582356377, x=0, x=226050908, x=4, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=5, v=-1469330923, x=0, x=226050908, x=4, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=5, v=-1469330923, x=0, x=226050908, x=5, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=6, v=-1469330923, x=0, x=226050908, x=5, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=6, v=-1469330923, x=0, x=282563635, x=5, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=6] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=6] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=6, v=-1469330923, x=0, x=282563635, x=5, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=6, v=-1469330923, x=0, x=282563635, x=5, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=6, v=-1356305469, x=0, x=282563635, x=5, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=6, v=-1356305469, x=0, x=282563635, x=6, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=7, v=-1356305469, x=0, x=282563635, x=6, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=7, v=-1356305469, x=0, x=339076362, x=6, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=7] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=7] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=7, v=-1356305469, x=0, x=339076362, x=6, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=7, v=-1356305469, x=0, x=339076362, x=6, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=7, v=-1243280015, x=0, x=339076362, x=6, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=7, v=-1243280015, x=0, x=339076362, x=7, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=8, v=-1243280015, x=0, x=339076362, x=7, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=8, v=-1243280015, x=0, x=395589089, x=7, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=8] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=8] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=8, v=-1243280015, x=0, x=395589089, x=7, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=8, v=-1243280015, x=0, x=395589089, x=7, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=8, v=-1130254561, x=0, x=395589089, x=7, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=8, v=-1130254561, x=0, x=395589089, x=8, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=9, v=-1130254561, x=0, x=395589089, x=8, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=9, v=-1130254561, x=0, x=452101816, x=8, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=9] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=9] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=9, v=-1130254561, x=0, x=452101816, x=8, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=9, v=-1130254561, x=0, x=452101816, x=8, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=9, v=-1017229107, x=0, x=452101816, x=8, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=9, v=-1017229107, x=0, x=452101816, x=9, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=10, v=-1017229107, x=0, x=452101816, x=9, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=10, v=-1017229107, x=0, x=508614543, x=9, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=10] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=10] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=10, v=-1017229107, x=0, x=508614543, x=9, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=10, v=-1017229107, x=0, x=508614543, x=9, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=10, v=-904203653, x=0, x=508614543, x=9, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=10, v=-904203653, x=0, x=10, x=508614543, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=11, v=-904203653, x=0, x=10, x=508614543, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=11, v=-904203653, x=0, x=10, x=565127270, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=11] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=11] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=11, v=-904203653, x=0, x=10, x=565127270, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=11, v=-904203653, x=0, x=10, x=565127270, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=11, v=-791178199, x=0, x=10, x=565127270, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=11, v=-791178199, x=0, x=11, x=565127270, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=12, v=-791178199, x=0, x=11, x=565127270, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=12, v=-791178199, x=0, x=11, x=621639997, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=12] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=12] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=12, v=-791178199, x=0, x=11, x=621639997, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=12, v=-791178199, x=0, x=11, x=621639997, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=12, v=-678152745, x=0, x=11, x=621639997, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=12, v=-678152745, x=0, x=12, x=621639997, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=13, v=-678152745, x=0, x=12, x=621639997, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=13, v=-678152745, x=0, x=12, x=678152724, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=13] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=13] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=13, v=-678152745, x=0, x=12, x=678152724, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=13, v=-678152745, x=0, x=12, x=678152724, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=13, v=-565127291, x=0, x=12, x=678152724, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=13, v=-565127291, x=0, x=13, x=678152724, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=14, v=-565127291, x=0, x=13, x=678152724, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=14, v=-565127291, x=0, x=13, x=734665451, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=14] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=14] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=14, v=-565127291, x=0, x=13, x=734665451, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=14, v=-565127291, x=0, x=13, x=734665451, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=14, v=-452101837, x=0, x=13, x=734665451, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=14, v=-452101837, x=0, x=14, x=734665451, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=15, v=-452101837, x=0, x=14, x=734665451, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=15, v=-452101837, x=0, x=14, x=791178178, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=15] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=15] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=15, v=-452101837, x=0, x=14, x=791178178, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=15, v=-452101837, x=0, x=14, x=791178178, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=15, v=-339076383, x=0, x=14, x=791178178, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=15, v=-339076383, x=0, x=15, x=791178178, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=16, v=-339076383, x=0, x=15, x=791178178, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=16, v=-339076383, x=0, x=15, x=847690905, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=16] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=16] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=16, v=-339076383, x=0, x=15, x=847690905, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=16, v=-339076383, x=0, x=15, x=847690905, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=16, v=-226050929, x=0, x=15, x=847690905, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=16, v=-226050929, x=0, x=16, x=847690905, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=17, v=-226050929, x=0, x=16, x=847690905, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=17, v=-226050929, x=0, x=16, x=904203632, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=17] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=17] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=17, v=-226050929, x=0, x=16, x=904203632, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=17, v=-226050929, x=0, x=16, x=904203632, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=17, v=-113025475, x=0, x=16, x=904203632, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=17, v=-113025475, x=0, x=17, x=904203632, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=18, v=-113025475, x=0, x=17, x=904203632, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=18, v=-113025475, x=0, x=17, x=960716359, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=18] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=18] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=18, v=-113025475, x=0, x=17, x=960716359, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=18, v=-113025475, x=0, x=17, x=960716359, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=18, v=-21, x=0, x=17, x=960716359, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=18, v=-21, x=0, x=18, x=960716359, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=19, v=-21, x=0, x=18, x=960716359, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=19, v=-21, x=0, x=1017229086, x=18, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=19] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=19] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=19, v=-21, x=0, x=1017229086, x=18, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=19, v=-21, x=0, x=1017229086, x=18, y=0] [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y VAL [X=2147483647, Y=56512727, counter=19, v=113025433, x=0, x=1017229086, x=18, y=0] [L45] x++ VAL [X=2147483647, Y=56512727, counter=19, v=113025433, x=0, x=1017229086, x=19, y=0] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=20, v=113025433, x=0, x=1017229086, x=19, y=0] [L31] COND TRUE counter++<20 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=2147483647, Y=56512727, counter=20, v=113025433, x=0, x=1073741813, x=19, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=20] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=20] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=2147483647, Y=56512727, counter=20, v=113025433, x=0, x=1073741813, x=19, y=0] [L35] COND FALSE !(!(x <= X)) VAL [X=2147483647, Y=56512727, counter=20, v=113025433, x=0, x=1073741813, x=19, y=0] [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ VAL [X=2147483647, Y=56512727, counter=20, v=-4068916407, x=0, x=1073741813, x=19, y=1] [L45] x++ VAL [X=2147483647, Y=56512727, counter=20, v=-4068916407, x=0, x=1073741813, x=20, y=1] [L31] EXPR counter++ VAL [X=2147483647, Y=56512727, counter=21, v=-4068916407, x=0, x=1073741813, x=20, y=1] [L31] COND FALSE !(counter++<20) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [X=2147483647, Y=56512727, counter=21, v=-4068916407, x=1130254540, x=20, x=20, y=1] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [\old(cond)=0, counter=21] [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=21] [L16] reach_error() VAL [\old(cond)=0, cond=0, counter=21] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 8, TraceHistogramMax: 21, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 307 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 306 mSDsluCounter, 693 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 619 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 717 IncrementalHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 74 mSDtfsCounter, 717 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 898 GetRequests, 745 SyntacticMatches, 3 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=399occurred in iteration=7, InterpolantAutomatonStates: 130, 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, 7 MinimizatonAttempts, 25 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 638 NumberOfCodeBlocks, 448 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 840 ConstructedInterpolants, 1 QuantifiedInterpolants, 2722 SizeOfPredicates, 39 NumberOfNonLiveVariables, 807 ConjunctsInSsa, 134 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 4129/5134 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-29 07:08:11,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbb6e5a-925f-4eb9-98bb-f0eb5aa425b3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE