./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX --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 ff5daa36c47d3acf04ff127d3f9a6e17688f7f254f16d34cb2769aec1ca052fe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:24:47,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:24:47,620 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:24:47,628 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:24:47,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:24:47,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:24:47,669 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:24:47,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:24:47,670 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:24:47,671 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:24:47,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:24:47,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:24:47,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:24:47,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:24:47,674 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:24:47,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:24:47,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:24:47,675 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:24:47,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:24:47,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:24:47,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:24:47,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:24:47,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:24:47,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:24:47,679 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:24:47,680 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:24:47,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:24:47,681 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:24:47,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:24:47,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:24:47,682 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:24:47,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:24:47,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:24:47,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:24:47,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:24:47,685 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:24:47,685 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:24:47,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:24:47,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:24:47,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:24:47,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:24:47,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:24:47,688 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_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5daa36c47d3acf04ff127d3f9a6e17688f7f254f16d34cb2769aec1ca052fe [2024-11-08 17:24:47,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:24:48,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:24:48,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:24:48,006 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:24:48,007 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:24:48,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c Unable to find full path for "g++" [2024-11-08 17:24:50,392 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:24:50,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:24:50,750 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2024-11-08 17:24:50,765 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/data/90d195d4b/0303bba80e534fe284e5e27d594dfc19/FLAG88534c394 [2024-11-08 17:24:51,005 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/data/90d195d4b/0303bba80e534fe284e5e27d594dfc19 [2024-11-08 17:24:51,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:24:51,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:24:51,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:24:51,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:24:51,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:24:51,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ec7a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51, skipping insertion in model container [2024-11-08 17:24:51,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:24:51,318 WARN L250 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_9c73703f-fe23-49b1-b05f-3f6de000594a/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2024-11-08 17:24:51,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:24:51,361 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:24:51,374 WARN L250 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_9c73703f-fe23-49b1-b05f-3f6de000594a/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2024-11-08 17:24:51,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:24:51,406 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:24:51,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51 WrapperNode [2024-11-08 17:24:51,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:24:51,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:24:51,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:24:51,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:24:51,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,448 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2024-11-08 17:24:51,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:24:51,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:24:51,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:24:51,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:24:51,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,492 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]. [2024-11-08 17:24:51,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,507 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:24:51,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:24:51,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:24:51,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:24:51,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (1/1) ... [2024-11-08 17:24:51,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:24:51,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:24:51,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:24:51,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:24:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:24:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:24:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:24:51,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:24:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 17:24:51,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 17:24:51,673 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:24:51,678 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:24:51,847 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-08 17:24:51,847 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:24:51,862 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:24:51,862 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:24:51,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:24:51 BoogieIcfgContainer [2024-11-08 17:24:51,864 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:24:51,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:24:51,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:24:51,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:24:51,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:24:51" (1/3) ... [2024-11-08 17:24:51,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d20bd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:24:51, skipping insertion in model container [2024-11-08 17:24:51,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:51" (2/3) ... [2024-11-08 17:24:51,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d20bd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:24:51, skipping insertion in model container [2024-11-08 17:24:51,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:24:51" (3/3) ... [2024-11-08 17:24:51,881 INFO L112 eAbstractionObserver]: Analyzing ICFG freire2_valuebound1.c [2024-11-08 17:24:51,906 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:24:51,906 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:24:51,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:24:51,985 INFO L333 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, 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;@172dec92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:24:51,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:24:51,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 17:24:51,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 17:24:52,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:24:52,001 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:24:52,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:24:52,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:24:52,009 INFO L85 PathProgramCache]: Analyzing trace with hash -588510783, now seen corresponding path program 1 times [2024-11-08 17:24:52,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:24:52,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153562368] [2024-11-08 17:24:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:24:52,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:24:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:24:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:24:52,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:24:52,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153562368] [2024-11-08 17:24:52,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153562368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:24:52,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:24:52,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:24:52,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004915196] [2024-11-08 17:24:52,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:24:52,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:24:52,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:24:52,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:24:52,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:24:52,224 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-08 17:24:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:24:52,243 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2024-11-08 17:24:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:24:52,246 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2024-11-08 17:24:52,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:24:52,254 INFO L225 Difference]: With dead ends: 41 [2024-11-08 17:24:52,254 INFO L226 Difference]: Without dead ends: 18 [2024-11-08 17:24:52,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:24:52,263 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:24:52,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:24:52,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-08 17:24:52,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-08 17:24:52,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 17:24:52,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2024-11-08 17:24:52,319 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 9 [2024-11-08 17:24:52,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:24:52,319 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-08 17:24:52,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-08 17:24:52,321 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2024-11-08 17:24:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 17:24:52,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:24:52,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:24:52,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:24:52,323 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:24:52,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:24:52,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1186496579, now seen corresponding path program 1 times [2024-11-08 17:24:52,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:24:52,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392891367] [2024-11-08 17:24:52,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:24:52,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:24:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 17:24:52,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030590565] [2024-11-08 17:24:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:24:52,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:24:52,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:24:52,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:24:52,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:24:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:24:52,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:24:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:24:52,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:24:52,491 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:24:52,495 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:24:52,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:24:52,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:24:52,703 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:24:52,732 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:24:52,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:24:52 BoogieIcfgContainer [2024-11-08 17:24:52,739 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:24:52,740 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:24:52,741 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:24:52,741 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:24:52,742 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:24:51" (3/4) ... [2024-11-08 17:24:52,746 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:24:52,747 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:24:52,749 INFO L158 Benchmark]: Toolchain (without parser) took 1737.78ms. Allocated memory is still 176.2MB. Free memory was 146.6MB in the beginning and 88.8MB in the end (delta: 57.9MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-08 17:24:52,749 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:24:52,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.33ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 132.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 17:24:52,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.99ms. Allocated memory is still 176.2MB. Free memory was 132.8MB in the beginning and 131.9MB in the end (delta: 912.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:24:52,753 INFO L158 Benchmark]: Boogie Preprocessor took 58.50ms. Allocated memory is still 176.2MB. Free memory was 131.9MB in the beginning and 129.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:24:52,754 INFO L158 Benchmark]: RCFGBuilder took 355.70ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 117.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 17:24:52,756 INFO L158 Benchmark]: TraceAbstraction took 871.42ms. Allocated memory is still 176.2MB. Free memory was 117.2MB in the beginning and 89.7MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-08 17:24:52,760 INFO L158 Benchmark]: Witness Printer took 7.46ms. Allocated memory is still 176.2MB. Free memory was 89.7MB in the beginning and 88.8MB in the end (delta: 922.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:24:52,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.33ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 132.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.99ms. Allocated memory is still 176.2MB. Free memory was 132.8MB in the beginning and 131.9MB in the end (delta: 912.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.50ms. Allocated memory is still 176.2MB. Free memory was 131.9MB in the beginning and 129.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.70ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 117.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 871.42ms. Allocated memory is still 176.2MB. Free memory was 117.2MB in the beginning and 89.7MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 7.46ms. Allocated memory is still 176.2MB. Free memory was 89.7MB in the beginning and 88.8MB in the end (delta: 922.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=1) [L14] COND FALSE !(!cond) [L28] RET assume_abort_if_not(a>=0 && a<=1) [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [r=1] [L33] COND TRUE 1 VAL [r=1] [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) VAL [\old(cond)=0] [L17] COND TRUE !(cond) VAL [\old(cond)=0] [L19] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 27 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 17:24:52,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX --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 ff5daa36c47d3acf04ff127d3f9a6e17688f7f254f16d34cb2769aec1ca052fe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:24:55,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:24:55,474 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 17:24:55,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:24:55,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:24:55,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:24:55,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:24:55,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:24:55,523 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:24:55,525 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:24:55,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:24:55,526 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:24:55,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:24:55,527 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:24:55,528 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:24:55,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:24:55,530 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:24:55,532 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:24:55,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:24:55,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:24:55,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:24:55,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:24:55,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:24:55,538 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:24:55,538 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:24:55,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:24:55,539 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:24:55,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:24:55,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:24:55,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:24:55,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:24:55,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:24:55,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:24:55,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:24:55,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:24:55,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:24:55,542 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:24:55,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:24:55,542 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:24:55,542 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:24:55,543 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:24:55,543 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:24:55,544 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:24:55,544 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:24:55,544 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_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5daa36c47d3acf04ff127d3f9a6e17688f7f254f16d34cb2769aec1ca052fe [2024-11-08 17:24:55,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:24:56,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:24:56,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:24:56,006 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:24:56,006 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:24:56,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c Unable to find full path for "g++" [2024-11-08 17:24:58,563 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:24:58,811 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:24:58,811 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2024-11-08 17:24:58,825 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/data/6c7542be5/5e014aa2902c4e099d2b3e4ad09ca6cb/FLAGdd4904dba [2024-11-08 17:24:58,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/data/6c7542be5/5e014aa2902c4e099d2b3e4ad09ca6cb [2024-11-08 17:24:58,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:24:58,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:24:58,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:24:58,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:24:58,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:24:58,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:24:58" (1/1) ... [2024-11-08 17:24:58,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@266d8cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:58, skipping insertion in model container [2024-11-08 17:24:58,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:24:58" (1/1) ... [2024-11-08 17:24:58,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:24:59,234 WARN L250 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_9c73703f-fe23-49b1-b05f-3f6de000594a/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2024-11-08 17:24:59,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:24:59,306 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:24:59,326 WARN L250 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_9c73703f-fe23-49b1-b05f-3f6de000594a/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2024-11-08 17:24:59,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:24:59,381 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:24:59,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59 WrapperNode [2024-11-08 17:24:59,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:24:59,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:24:59,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:24:59,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:24:59,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,449 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2024-11-08 17:24:59,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:24:59,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:24:59,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:24:59,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:24:59,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,495 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]. [2024-11-08 17:24:59,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:24:59,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:24:59,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:24:59,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:24:59,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (1/1) ... [2024-11-08 17:24:59,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:24:59,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:24:59,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:24:59,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:24:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:24:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:24:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:24:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:24:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 17:24:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 17:24:59,730 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:24:59,733 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:25:03,295 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-08 17:25:03,296 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:25:03,309 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:25:03,310 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:25:03,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:25:03 BoogieIcfgContainer [2024-11-08 17:25:03,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:25:03,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:25:03,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:25:03,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:25:03,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:24:58" (1/3) ... [2024-11-08 17:25:03,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2ba21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:25:03, skipping insertion in model container [2024-11-08 17:25:03,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:24:59" (2/3) ... [2024-11-08 17:25:03,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f2ba21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:25:03, skipping insertion in model container [2024-11-08 17:25:03,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:25:03" (3/3) ... [2024-11-08 17:25:03,325 INFO L112 eAbstractionObserver]: Analyzing ICFG freire2_valuebound1.c [2024-11-08 17:25:03,349 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:25:03,349 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:25:03,415 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:25:03,423 INFO L333 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, 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;@6e33eb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:25:03,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:25:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 17:25:03,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 17:25:03,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:25:03,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:25:03,439 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:25:03,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:25:03,449 INFO L85 PathProgramCache]: Analyzing trace with hash -588510783, now seen corresponding path program 1 times [2024-11-08 17:25:03,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:25:03,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422734968] [2024-11-08 17:25:03,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:25:03,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:25:03,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:25:03,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 17:25:03,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 17:25:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:25:03,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 17:25:03,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:25:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:25:03,718 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:25:03,719 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:25:03,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422734968] [2024-11-08 17:25:03,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422734968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:25:03,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:25:03,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:25:03,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496113105] [2024-11-08 17:25:03,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:25:03,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:25:03,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:25:03,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:25:03,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:25:03,757 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-08 17:25:03,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:25:03,781 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2024-11-08 17:25:03,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:25:03,784 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2024-11-08 17:25:03,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:25:03,793 INFO L225 Difference]: With dead ends: 41 [2024-11-08 17:25:03,794 INFO L226 Difference]: Without dead ends: 18 [2024-11-08 17:25:03,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:25:03,802 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:25:03,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:25:03,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-08 17:25:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-08 17:25:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 17:25:03,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2024-11-08 17:25:03,851 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 9 [2024-11-08 17:25:03,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:25:03,852 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-08 17:25:03,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-08 17:25:03,853 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2024-11-08 17:25:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 17:25:03,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:25:03,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:25:03,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 17:25:04,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:25:04,055 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:25:04,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:25:04,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1186496579, now seen corresponding path program 1 times [2024-11-08 17:25:04,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:25:04,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774953816] [2024-11-08 17:25:04,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:25:04,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:25:04,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:25:04,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 17:25:04,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 17:25:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:25:04,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:25:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:25:04,337 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-08 17:25:04,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [896885872] [2024-11-08 17:25:04,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:25:04,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:25:04,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:25:04,340 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:25:04,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:25:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:25:04,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 17:25:04,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:25:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:25:05,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:25:05,516 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:25:05,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774953816] [2024-11-08 17:25:05,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 17:25:05,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896885872] [2024-11-08 17:25:05,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896885872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:25:05,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:25:05,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:25:05,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204940449] [2024-11-08 17:25:05,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:25:05,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:25:05,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:25:05,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:25:05,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:25:05,524 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-08 17:25:10,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:13,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:25:17,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:19,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:23,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:27,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:25:31,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:35,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:40,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:44,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:48,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:25:52,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:53,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:25:59,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:03,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:26:05,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:09,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:13,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:17,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:21,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:25,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:29,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:26:34,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:38,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:42,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:46,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:26:50,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:54,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:26:58,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:02,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:06,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:27:11,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:15,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:16,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:20,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:25,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:29,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:33,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-08 17:27:37,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:41,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:27:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:27:41,630 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2024-11-08 17:27:41,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:27:41,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 5 states have internal predecessors, (8), 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 9 [2024-11-08 17:27:41,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:27:41,761 INFO L225 Difference]: With dead ends: 32 [2024-11-08 17:27:41,761 INFO L226 Difference]: Without dead ends: 30 [2024-11-08 17:27:41,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:27:41,764 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 155.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:27:41,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 29 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 33 Unknown, 0 Unchecked, 155.9s Time] [2024-11-08 17:27:41,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-08 17:27:41,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2024-11-08 17:27:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 17:27:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2024-11-08 17:27:41,783 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 9 [2024-11-08 17:27:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:27:41,783 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2024-11-08 17:27:41,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-08 17:27:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2024-11-08 17:27:41,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 17:27:41,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:27:41,786 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:27:41,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:27:42,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:27:42,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:27:42,187 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:27:42,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:27:42,188 INFO L85 PathProgramCache]: Analyzing trace with hash 514772834, now seen corresponding path program 1 times [2024-11-08 17:27:42,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:27:42,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341295843] [2024-11-08 17:27:42,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:27:42,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:27:42,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:27:42,191 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 17:27:42,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-08 17:27:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:27:42,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:27:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:27:43,163 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-08 17:27:43,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093558387] [2024-11-08 17:27:43,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:27:43,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:27:43,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:27:43,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:27:43,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:27:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:27:51,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 17:27:51,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:27:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:27:55,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:28:01,738 WARN L286 SmtUtils]: Spent 6.28s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 17:28:05,789 WARN L851 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvneg (bvmul (bvmul (_ bv6 32) |c_ULTIMATE.start_main_~r~0#1|) |c_ULTIMATE.start_main_~r~0#1|)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) (bvmul (_ bv3 32) |c_ULTIMATE.start_main_~r~0#1|) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) (fp.mul c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~a~0#1|)))))) is different from false [2024-11-08 17:28:09,829 WARN L873 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvneg (bvmul (bvmul (_ bv6 32) |c_ULTIMATE.start_main_~r~0#1|) |c_ULTIMATE.start_main_~r~0#1|)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) (bvmul (_ bv3 32) |c_ULTIMATE.start_main_~r~0#1|) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) (fp.mul c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~a~0#1|)))))) is different from true [2024-11-08 17:28:16,424 WARN L286 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 17:28:24,523 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 17:28:54,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:28:54,813 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:28:54,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341295843] [2024-11-08 17:28:54,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 17:28:54,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093558387] [2024-11-08 17:28:54,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093558387] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 17:28:54,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:28:54,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2024-11-08 17:28:54,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118426834] [2024-11-08 17:28:54,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:28:54,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:28:54,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:28:54,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:28:54,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=99, Unknown=2, NotChecked=20, Total=156 [2024-11-08 17:28:54,818 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 17:28:56,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 17:28:58,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:28:59,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:00,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:04,798 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (let ((.cse0 (fp.mul c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~a~0#1|))) (and (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.sub c_currentRoundingMode .cse0 .cse0))) (= (_ bv1 32) (bvadd (bvneg (bvmul (bvmul (_ bv6 32) |c_ULTIMATE.start_main_~r~0#1|) |c_ULTIMATE.start_main_~r~0#1|)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) (bvmul (_ bv3 32) |c_ULTIMATE.start_main_~r~0#1|) ((_ fp.to_sbv 32) roundTowardZero (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~x~0#1|) .cse0))))))) is different from false [2024-11-08 17:29:08,843 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (let ((.cse0 (fp.mul c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~a~0#1|))) (and (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.sub c_currentRoundingMode .cse0 .cse0))) (= (_ bv1 32) (bvadd (bvneg (bvmul (bvmul (_ bv6 32) |c_ULTIMATE.start_main_~r~0#1|) |c_ULTIMATE.start_main_~r~0#1|)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) (bvmul (_ bv3 32) |c_ULTIMATE.start_main_~r~0#1|) ((_ fp.to_sbv 32) roundTowardZero (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~x~0#1|) .cse0))))))) is different from true [2024-11-08 17:29:12,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:17,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:21,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:25,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:27,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:29,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:33,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:37,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:41,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:47,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:49,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:53,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:29:57,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:30:01,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:30:05,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:30:09,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:30:13,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:30:17,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:30:21,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:30:25,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 17:30:25,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:30:25,913 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2024-11-08 17:30:26,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:30:26,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-11-08 17:30:26,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:30:26,041 INFO L225 Difference]: With dead ends: 34 [2024-11-08 17:30:26,042 INFO L226 Difference]: Without dead ends: 32 [2024-11-08 17:30:26,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 42.6s TimeCoverageRelationStatistics Valid=41, Invalid=119, Unknown=4, NotChecked=46, Total=210 [2024-11-08 17:30:26,043 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 80.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:30:26,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 79 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 16 Unknown, 52 Unchecked, 80.9s Time] [2024-11-08 17:30:26,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-08 17:30:26,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-08 17:30:26,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 17:30:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2024-11-08 17:30:26,059 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 14 [2024-11-08 17:30:26,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:30:26,059 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2024-11-08 17:30:26,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 17:30:26,060 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-11-08 17:30:26,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 17:30:26,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:30:26,061 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:30:26,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:30:26,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:30:26,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:30:26,465 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:30:26,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:30:26,466 INFO L85 PathProgramCache]: Analyzing trace with hash -732613789, now seen corresponding path program 1 times [2024-11-08 17:30:26,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:30:26,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293353833] [2024-11-08 17:30:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:26,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 17:30:26,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:30:26,470 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 17:30:26,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-08 17:30:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:30:28,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:30:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:30:29,827 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-08 17:30:29,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1664517681] [2024-11-08 17:30:29,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:30:29,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:30:29,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:30:29,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:30:29,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 17:31:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:31:10,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:31:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:31:58,881 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 17:31:58,881 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:31:58,881 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:31:58,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-08 17:31:59,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 17:31:59,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:59,286 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 17:31:59,306 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:31:59,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:31:59 BoogieIcfgContainer [2024-11-08 17:31:59,309 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:31:59,310 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:31:59,310 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:31:59,310 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:31:59,311 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:25:03" (3/4) ... [2024-11-08 17:31:59,316 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 17:31:59,359 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:31:59,360 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:31:59,360 INFO L158 Benchmark]: Toolchain (without parser) took 420500.50ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 45.0MB in the beginning and 60.2MB in the end (delta: -15.1MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-08 17:31:59,360 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:31:59,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.78ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 54.5MB in the end (delta: -9.5MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-11-08 17:31:59,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.04ms. Allocated memory is still 86.0MB. Free memory was 54.2MB in the beginning and 52.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:31:59,361 INFO L158 Benchmark]: Boogie Preprocessor took 88.46ms. Allocated memory is still 86.0MB. Free memory was 52.8MB in the beginning and 50.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:31:59,361 INFO L158 Benchmark]: RCFGBuilder took 3770.57ms. Allocated memory is still 86.0MB. Free memory was 50.3MB in the beginning and 63.8MB in the end (delta: -13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 17:31:59,362 INFO L158 Benchmark]: TraceAbstraction took 415991.73ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 62.9MB in the beginning and 62.4MB in the end (delta: 533.2kB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2024-11-08 17:31:59,362 INFO L158 Benchmark]: Witness Printer took 49.55ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 60.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:31:59,365 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.78ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 54.5MB in the end (delta: -9.5MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.04ms. Allocated memory is still 86.0MB. Free memory was 54.2MB in the beginning and 52.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 88.46ms. Allocated memory is still 86.0MB. Free memory was 52.8MB in the beginning and 50.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3770.57ms. Allocated memory is still 86.0MB. Free memory was 50.3MB in the beginning and 63.8MB in the end (delta: -13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 415991.73ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 62.9MB in the beginning and 62.4MB in the end (delta: 533.2kB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Witness Printer took 49.55ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 60.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=1) [L14] COND FALSE !(!cond) [L28] RET assume_abort_if_not(a>=0 && a<=1) [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [a=0.25000000000000006, r=1, s=3.25, x=0.25000000000000006] [L33] COND TRUE 1 VAL [a=0.25000000000000006, r=1, s=3.25, x=0.25000000000000006] [L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1) VAL [\old(cond)=1] [L17] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L34] RET __VERIFIER_assert((int)(4*s) - 12*r*r == 1) VAL [a=0.25000000000000006, r=1, s=3.25, x=0.25000000000000006] [L35] CALL __VERIFIER_assert(((4*r*r*r - 6*r*r + 3*r) + (int)(4*x - 4*a)) == 1) VAL [\old(cond)=1] [L17] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L35] RET __VERIFIER_assert(((4*r*r*r - 6*r*r + 3*r) + (int)(4*x - 4*a)) == 1) VAL [a=0.25000000000000006, r=1, s=3.25, x=0.25000000000000006] [L36] CALL __VERIFIER_assert((int)(8*r*s - 24*a + 16*r - 12*s + 24*x - 3 == 0)) VAL [\old(cond)=0] [L17] COND TRUE !(cond) VAL [\old(cond)=0] [L19] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 415.9s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 247.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 236.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 234.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 52 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 60 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 43.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 52.0s SatisfiabilityAnalysisTime, 63.9s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 1 QuantifiedInterpolants, 373 SizeOfPredicates, 6 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 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! [2024-11-08 17:31:59,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c73703f-fe23-49b1-b05f-3f6de000594a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE