./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 0cb882cfd69f05f54da892fd87d6e6d21910f2af522148b65b2b913f00b9dfcc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:53:27,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:53:27,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 21:53:27,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:53:27,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:53:28,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:53:28,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:53:28,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:53:28,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:53:28,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:53:28,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:53:28,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:53:28,019 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:53:28,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:53:28,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:53:28,022 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:53:28,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:53:28,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:53:28,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:53:28,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:53:28,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:53:28,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:53:28,025 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:53:28,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:53:28,029 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:53:28,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:53:28,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:53:28,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:53:28,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:28,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:53:28,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:53:28,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:53:28,034 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:53:28,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:53:28,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:53:28,035 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:53:28,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:53:28,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:53:28,036 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:53:28,036 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_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cb882cfd69f05f54da892fd87d6e6d21910f2af522148b65b2b913f00b9dfcc [2023-11-06 21:53:28,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:53:28,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:53:28,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:53:28,433 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:53:28,434 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:53:28,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i [2023-11-06 21:53:31,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:53:31,788 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:53:31,789 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i [2023-11-06 21:53:31,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/data/6b59c484d/d2440cc9df1147efacc8507d698e98a8/FLAG36b4935c5 [2023-11-06 21:53:31,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/data/6b59c484d/d2440cc9df1147efacc8507d698e98a8 [2023-11-06 21:53:31,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:53:31,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:53:31,815 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:31,815 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:53:31,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:53:31,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:31" (1/1) ... [2023-11-06 21:53:31,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d04b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:31, skipping insertion in model container [2023-11-06 21:53:31,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:31" (1/1) ... [2023-11-06 21:53:31,852 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:53:32,049 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i[915,928] [2023-11-06 21:53:32,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:32,115 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:53:32,132 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i[915,928] [2023-11-06 21:53:32,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:32,185 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:53:32,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32 WrapperNode [2023-11-06 21:53:32,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:32,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:32,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:53:32,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:53:32,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,254 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72 [2023-11-06 21:53:32,255 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:32,256 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:53:32,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:53:32,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:53:32,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:53:32,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:53:32,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:53:32,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:53:32,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:32,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:32,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:53:32,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:53:32,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:53:32,391 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:53:32,391 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:53:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:53:32,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:53:32,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:53:32,484 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:53:32,486 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:53:32,737 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:53:32,744 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:53:32,744 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:53:32,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:32 BoogieIcfgContainer [2023-11-06 21:53:32,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:53:32,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:53:32,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:53:32,754 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:53:32,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:53:31" (1/3) ... [2023-11-06 21:53:32,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b948c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:32, skipping insertion in model container [2023-11-06 21:53:32,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32" (2/3) ... [2023-11-06 21:53:32,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b948c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:32, skipping insertion in model container [2023-11-06 21:53:32,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:32" (3/3) ... [2023-11-06 21:53:32,758 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-14.i [2023-11-06 21:53:32,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:53:32,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:53:32,830 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:53:32,838 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@c56421a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:53:32,839 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:53:32,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-06 21:53:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 21:53:32,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:32,856 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:32,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:53:32,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:32,863 INFO L85 PathProgramCache]: Analyzing trace with hash -347497792, now seen corresponding path program 1 times [2023-11-06 21:53:32,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:32,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945836589] [2023-11-06 21:53:32,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:32,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 21:53:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 21:53:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 21:53:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 21:53:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-06 21:53:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:53:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-06 21:53:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-06 21:53:33,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:33,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945836589] [2023-11-06 21:53:33,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945836589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:33,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:33,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:53:33,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378825833] [2023-11-06 21:53:33,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:33,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:53:33,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:33,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:53:33,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:53:33,242 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-06 21:53:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:53:33,281 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2023-11-06 21:53:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:53:33,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2023-11-06 21:53:33,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:53:33,293 INFO L225 Difference]: With dead ends: 57 [2023-11-06 21:53:33,293 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 21:53:33,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:53:33,301 INFO L413 NwaCegarLoop]: 35 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, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:53:33,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:53:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 21:53:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 21:53:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-06 21:53:33,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2023-11-06 21:53:33,359 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 50 [2023-11-06 21:53:33,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:53:33,361 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-06 21:53:33,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-06 21:53:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-06 21:53:33,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 21:53:33,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:33,367 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:33,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:53:33,369 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:53:33,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:33,375 INFO L85 PathProgramCache]: Analyzing trace with hash -891918394, now seen corresponding path program 1 times [2023-11-06 21:53:33,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:33,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374847218] [2023-11-06 21:53:33,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:33,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 21:53:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 21:53:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 21:53:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 21:53:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-06 21:53:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:53:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-06 21:53:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-06 21:53:33,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:33,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374847218] [2023-11-06 21:53:33,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374847218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:33,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:33,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:53:33,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047805068] [2023-11-06 21:53:33,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:33,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:53:33,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:33,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:53:33,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:33,887 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-06 21:53:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:53:33,923 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2023-11-06 21:53:33,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:53:33,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 50 [2023-11-06 21:53:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:53:33,926 INFO L225 Difference]: With dead ends: 53 [2023-11-06 21:53:33,926 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 21:53:33,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:33,931 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:53:33,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 62 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:53:33,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 21:53:33,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 21:53:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-06 21:53:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2023-11-06 21:53:33,943 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 50 [2023-11-06 21:53:33,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:53:33,945 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2023-11-06 21:53:33,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-06 21:53:33,946 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-06 21:53:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 21:53:33,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:33,953 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:33,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:53:33,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:53:33,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:33,955 INFO L85 PathProgramCache]: Analyzing trace with hash -893765436, now seen corresponding path program 1 times [2023-11-06 21:53:33,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:33,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264907480] [2023-11-06 21:53:33,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:33,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:53:34,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:53:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:53:34,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:53:34,076 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 21:53:34,078 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 21:53:34,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:53:34,084 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 21:53:34,091 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:53:34,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:53:34 BoogieIcfgContainer [2023-11-06 21:53:34,153 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:53:34,153 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:53:34,153 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:53:34,154 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:53:34,154 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:32" (3/4) ... [2023-11-06 21:53:34,156 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 21:53:34,157 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:53:34,158 INFO L158 Benchmark]: Toolchain (without parser) took 2345.00ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 102.3MB in the end (delta: 9.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,159 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 157.3MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:34,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.82ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 100.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.09ms. Allocated memory is still 157.3MB. Free memory was 100.0MB in the beginning and 98.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,161 INFO L158 Benchmark]: Boogie Preprocessor took 43.99ms. Allocated memory is still 157.3MB. Free memory was 98.6MB in the beginning and 97.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,161 INFO L158 Benchmark]: RCFGBuilder took 445.74ms. Allocated memory is still 157.3MB. Free memory was 97.1MB in the beginning and 85.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,162 INFO L158 Benchmark]: TraceAbstraction took 1402.91ms. Allocated memory is still 157.3MB. Free memory was 85.2MB in the beginning and 102.3MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:34,162 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 157.3MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:34,169 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 157.3MB. Free memory is still 129.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.82ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 100.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.09ms. Allocated memory is still 157.3MB. Free memory was 100.0MB in the beginning and 98.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.99ms. Allocated memory is still 157.3MB. Free memory was 98.6MB in the beginning and 97.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.74ms. Allocated memory is still 157.3MB. Free memory was 97.1MB in the beginning and 85.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1402.91ms. Allocated memory is still 157.3MB. Free memory was 85.2MB in the beginning and 102.3MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 157.3MB. Free memory is still 102.3MB. There was no memory consumed. 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 someBinaryDOUBLEComparisonOperation at line 59, overapproximation of someBinaryArithmeticDOUBLEoperation at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 16.75; [L23] double var_1_5 = 2.05; [L24] double var_1_6 = 9.375; [L25] double var_1_7 = 64.4; [L26] double var_1_8 = 10000.25; [L27] signed short int var_1_9 = -2; [L28] signed short int var_1_10 = 0; [L29] unsigned short int var_1_11 = 4; [L30] unsigned short int var_1_12 = 128; VAL [isInitial=0, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_5=41/20, var_1_6=75/8, var_1_7=322/5, var_1_8=40001/4, var_1_9=-2] [L63] isInitial = 1 [L64] FCALL initially() [L65] COND TRUE 1 [L66] FCALL updateLastVariables() [L67] CALL updateVariables() [L43] var_1_5 = __VERIFIER_nondet_double() [L44] CALL assume_abort_if_not((var_1_5 >= -230584.3009213691390e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 2305843.009213691390e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=75/8, var_1_7=322/5, var_1_8=40001/4, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=75/8, var_1_7=322/5, var_1_8=40001/4, var_1_9=-2] [L44] RET assume_abort_if_not((var_1_5 >= -230584.3009213691390e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 2305843.009213691390e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=75/8, var_1_7=322/5, var_1_8=40001/4, var_1_9=-2] [L45] var_1_6 = __VERIFIER_nondet_double() [L46] CALL assume_abort_if_not((var_1_6 >= -230584.3009213691390e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 2305843.009213691390e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=322/5, var_1_8=40001/4, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=322/5, var_1_8=40001/4, var_1_9=-2] [L46] RET assume_abort_if_not((var_1_6 >= -230584.3009213691390e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 2305843.009213691390e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=322/5, var_1_8=40001/4, var_1_9=-2] [L47] var_1_7 = __VERIFIER_nondet_double() [L48] CALL assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L48] RET assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L49] var_1_10 = __VERIFIER_nondet_short() [L50] CALL assume_abort_if_not(var_1_10 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L50] RET assume_abort_if_not(var_1_10 >= -32767) VAL [isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L51] CALL assume_abort_if_not(var_1_10 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L51] RET assume_abort_if_not(var_1_10 <= 32766) VAL [isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=128, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L52] var_1_12 = __VERIFIER_nondet_ushort() [L53] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=65534, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=65534, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L53] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=65534, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L54] CALL assume_abort_if_not(var_1_12 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=65534, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=65534, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L54] RET assume_abort_if_not(var_1_12 <= 65534) VAL [isInitial=1, var_1_10=-32767, var_1_11=4, var_1_12=65534, var_1_1=67/4, var_1_6=65541, var_1_7=65540, var_1_8=40001/4, var_1_9=-2] [L67] RET updateVariables() [L68] CALL step() [L34] var_1_8 = var_1_5 [L35] var_1_9 = var_1_10 [L36] var_1_11 = var_1_12 [L37] signed short int stepLocal_0 = var_1_9; VAL [isInitial=1, stepLocal_0=-32767, var_1_10=-32767, var_1_11=65534, var_1_12=65534, var_1_1=67/4, var_1_5=65539, var_1_6=65541, var_1_7=65540, var_1_8=65539, var_1_9=-32767] [L38] COND TRUE stepLocal_0 <= (var_1_11 + ((((50) > (var_1_9)) ? (50) : (var_1_9)))) [L39] var_1_1 = ((var_1_5 + var_1_6) + var_1_7) VAL [isInitial=1, stepLocal_0=-32767, var_1_10=-32767, var_1_11=65534, var_1_12=65534, var_1_5=65539, var_1_6=65541, var_1_7=65540, var_1_8=65539, var_1_9=-32767] [L68] RET step() [L69] CALL, EXPR property() [L59-L60] return ((((var_1_9 <= (var_1_11 + ((((50) > (var_1_9)) ? (50) : (var_1_9))))) ? (var_1_1 == ((double) ((var_1_5 + var_1_6) + var_1_7))) : 1) && (var_1_8 == ((double) var_1_5))) && (var_1_9 == ((signed short int) var_1_10))) && (var_1_11 == ((unsigned short int) var_1_12)) ; VAL [\result=0, isInitial=1, var_1_10=-32767, var_1_11=65534, var_1_12=65534, var_1_5=65539, var_1_6=65541, var_1_7=65540, var_1_8=65539, var_1_9=-32767] [L69] RET, EXPR property() [L69] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-32767, var_1_11=65534, var_1_12=65534, var_1_5=65539, var_1_6=65541, var_1_7=65540, var_1_8=65539, var_1_9=-32767] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-32767, var_1_11=65534, var_1_12=65534, var_1_5=65539, var_1_6=65541, var_1_7=65540, var_1_8=65539, var_1_9=-32767] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 67 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 168/168 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 21:53:34,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 0cb882cfd69f05f54da892fd87d6e6d21910f2af522148b65b2b913f00b9dfcc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:53:36,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:53:37,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 21:53:37,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:53:37,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:53:37,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:53:37,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:53:37,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:53:37,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:53:37,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:53:37,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:53:37,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:53:37,179 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:53:37,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:53:37,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:53:37,183 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:53:37,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:53:37,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:53:37,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:53:37,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:53:37,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:53:37,187 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:53:37,187 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:53:37,188 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:53:37,188 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:53:37,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:53:37,189 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:53:37,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:53:37,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:53:37,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:53:37,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:37,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:53:37,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:53:37,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:53:37,193 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 21:53:37,194 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:53:37,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:53:37,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:53:37,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:53:37,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:53:37,195 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 21:53:37,195 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:53:37,196 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_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cb882cfd69f05f54da892fd87d6e6d21910f2af522148b65b2b913f00b9dfcc [2023-11-06 21:53:37,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:53:37,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:53:37,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:53:37,666 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:53:37,666 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:53:37,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i [2023-11-06 21:53:40,804 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:53:41,145 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:53:41,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i [2023-11-06 21:53:41,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/data/e0d592544/b45e5b7dda5c43cd857b53480ff30e18/FLAG676da8fd4 [2023-11-06 21:53:41,167 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/data/e0d592544/b45e5b7dda5c43cd857b53480ff30e18 [2023-11-06 21:53:41,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:53:41,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:53:41,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:41,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:53:41,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:53:41,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57727950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41, skipping insertion in model container [2023-11-06 21:53:41,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,214 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:53:41,394 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i[915,928] [2023-11-06 21:53:41,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:41,451 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:53:41,466 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-14.i[915,928] [2023-11-06 21:53:41,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:41,515 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:53:41,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41 WrapperNode [2023-11-06 21:53:41,515 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:41,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:41,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:53:41,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:53:41,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,594 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 71 [2023-11-06 21:53:41,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:41,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:53:41,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:53:41,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:53:41,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:53:41,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:53:41,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:53:41,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:53:41,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (1/1) ... [2023-11-06 21:53:41,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:41,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:41,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:53:41,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:53:41,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:53:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:53:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:53:41,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:53:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:53:41,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:53:41,865 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:53:41,868 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:53:43,458 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:53:43,465 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:53:43,465 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:53:43,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:43 BoogieIcfgContainer [2023-11-06 21:53:43,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:53:43,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:53:43,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:53:43,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:53:43,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:53:41" (1/3) ... [2023-11-06 21:53:43,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1880c5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:43, skipping insertion in model container [2023-11-06 21:53:43,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:41" (2/3) ... [2023-11-06 21:53:43,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1880c5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:43, skipping insertion in model container [2023-11-06 21:53:43,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:43" (3/3) ... [2023-11-06 21:53:43,477 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-14.i [2023-11-06 21:53:43,495 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:53:43,495 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:53:43,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:53:43,555 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4dcd47a4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:53:43,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:53:43,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-06 21:53:43,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 21:53:43,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:43,572 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:43,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:53:43,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:43,579 INFO L85 PathProgramCache]: Analyzing trace with hash -347497792, now seen corresponding path program 1 times [2023-11-06 21:53:43,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:53:43,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763687339] [2023-11-06 21:53:43,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:43,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:53:43,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:53:43,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 21:53:43,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 21:53:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:44,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 21:53:44,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:53:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-06 21:53:44,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:53:44,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:53:44,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763687339] [2023-11-06 21:53:44,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763687339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:44,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:44,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:53:44,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849612618] [2023-11-06 21:53:44,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:44,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:53:44,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:53:44,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:53:44,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:53:44,097 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-06 21:53:44,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:53:44,123 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2023-11-06 21:53:44,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:53:44,125 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2023-11-06 21:53:44,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:53:44,133 INFO L225 Difference]: With dead ends: 57 [2023-11-06 21:53:44,134 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 21:53:44,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:53:44,155 INFO L413 NwaCegarLoop]: 35 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, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:53:44,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:53:44,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 21:53:44,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 21:53:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-06 21:53:44,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2023-11-06 21:53:44,197 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 50 [2023-11-06 21:53:44,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:53:44,198 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-06 21:53:44,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-06 21:53:44,199 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-06 21:53:44,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 21:53:44,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:44,202 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:44,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:53:44,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:53:44,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:53:44,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:44,420 INFO L85 PathProgramCache]: Analyzing trace with hash -891918394, now seen corresponding path program 1 times [2023-11-06 21:53:44,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:53:44,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535176129] [2023-11-06 21:53:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:44,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:53:44,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:53:44,424 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 21:53:44,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 21:53:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:44,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:53:44,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:53:44,795 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-06 21:53:44,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:53:44,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:53:44,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535176129] [2023-11-06 21:53:44,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535176129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:44,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:44,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:53:44,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826928386] [2023-11-06 21:53:44,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:44,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:53:44,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:53:44,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:53:44,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:44,800 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-06 21:53:45,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 21:53:46,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:53:46,880 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2023-11-06 21:53:46,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:53:46,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 50 [2023-11-06 21:53:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:53:46,897 INFO L225 Difference]: With dead ends: 53 [2023-11-06 21:53:46,898 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 21:53:46,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:46,900 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:53:46,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 62 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-06 21:53:46,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 21:53:46,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 21:53:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-06 21:53:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2023-11-06 21:53:46,909 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 50 [2023-11-06 21:53:46,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:53:46,911 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2023-11-06 21:53:46,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-06 21:53:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-06 21:53:46,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 21:53:46,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:46,914 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:46,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 21:53:47,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:53:47,117 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:53:47,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:47,118 INFO L85 PathProgramCache]: Analyzing trace with hash -893765436, now seen corresponding path program 1 times [2023-11-06 21:53:47,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:53:47,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023293432] [2023-11-06 21:53:47,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:47,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:53:47,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:53:47,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 21:53:47,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077d2ba1-3923-4507-9a0a-8edeed14a73b/bin/uautomizer-verify-WvqO1wxjHP/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)] Waiting until timeout for monitored process [2023-11-06 21:53:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:47,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-06 21:53:47,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:47,967 WARN L293 SmtUtils]: Spent 18.80s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)