./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.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_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 983db8b9d7b8c1a6cf88f0ccf9f67454cabc986e490bff9f0d35f6b76f68db9d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:55:56,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:55:56,405 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:55:56,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:55:56,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:55:56,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:55:56,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:55:56,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:55:56,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:55:56,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:55:56,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:55:56,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:55:56,475 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:55:56,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:55:56,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:55:56,479 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:55:56,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:55:56,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:55:56,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:55:56,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:55:56,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:55:56,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:55:56,483 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:55:56,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:55:56,484 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:55:56,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:55:56,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:55:56,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:55:56,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:55:56,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:55:56,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:55:56,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:55:56,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:55:56,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:55:56,491 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:55:56,491 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:55:56,492 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:55:56,492 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:55:56,493 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:55:56,493 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_ea92c61c-842f-42e2-addf-36a25bcae6b3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983db8b9d7b8c1a6cf88f0ccf9f67454cabc986e490bff9f0d35f6b76f68db9d [2023-11-06 22:55:56,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:55:56,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:55:56,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:55:56,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:55:56,850 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:55:56,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i [2023-11-06 22:56:00,227 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:56:00,463 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:56:00,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i [2023-11-06 22:56:00,490 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/data/936a76e76/77df2953f4b548b8beee0099eb9d7afd/FLAG5e39b03f6 [2023-11-06 22:56:00,516 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/data/936a76e76/77df2953f4b548b8beee0099eb9d7afd [2023-11-06 22:56:00,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:56:00,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:56:00,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:00,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:56:00,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:56:00,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:00" (1/1) ... [2023-11-06 22:56:00,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d0cd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:00, skipping insertion in model container [2023-11-06 22:56:00,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:00" (1/1) ... [2023-11-06 22:56:00,608 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:56:00,788 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_ea92c61c-842f-42e2-addf-36a25bcae6b3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i[916,929] [2023-11-06 22:56:00,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:00,937 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:56:00,951 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_ea92c61c-842f-42e2-addf-36a25bcae6b3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i[916,929] [2023-11-06 22:56:01,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:01,024 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:56:01,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01 WrapperNode [2023-11-06 22:56:01,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:01,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:01,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:56:01,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:56:01,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,115 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 216 [2023-11-06 22:56:01,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:01,117 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:56:01,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:56:01,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:56:01,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:56:01,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:56:01,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:56:01,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:56:01,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (1/1) ... [2023-11-06 22:56:01,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:56:01,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:01,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:01,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:56:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:56:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:56:01,337 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:56:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:56:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:56:01,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:56:01,472 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:56:01,474 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:56:01,990 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:56:01,998 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:56:01,998 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:56:02,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:02 BoogieIcfgContainer [2023-11-06 22:56:02,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:56:02,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:56:02,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:56:02,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:56:02,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:56:00" (1/3) ... [2023-11-06 22:56:02,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fb78af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:02, skipping insertion in model container [2023-11-06 22:56:02,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:01" (2/3) ... [2023-11-06 22:56:02,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fb78af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:02, skipping insertion in model container [2023-11-06 22:56:02,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:02" (3/3) ... [2023-11-06 22:56:02,026 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-87.i [2023-11-06 22:56:02,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:56:02,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:56:02,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:56:02,127 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;@63cd8e02, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:56:02,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:56:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 56 states have internal predecessors, (75), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:56:02,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-06 22:56:02,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:02,154 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:02,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:02,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1518696061, now seen corresponding path program 1 times [2023-11-06 22:56:02,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:02,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965156487] [2023-11-06 22:56:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:02,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:02,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:02,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965156487] [2023-11-06 22:56:02,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:56:02,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205939706] [2023-11-06 22:56:02,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:02,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:02,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:02,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:02,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:56:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:02,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:56:02,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2023-11-06 22:56:03,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:03,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205939706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:03,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:03,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:56:03,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700141752] [2023-11-06 22:56:03,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:03,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:56:03,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:03,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:56:03,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:56:03,059 INFO L87 Difference]: Start difference. First operand has 92 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 56 states have internal predecessors, (75), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-06 22:56:03,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:03,129 INFO L93 Difference]: Finished difference Result 177 states and 314 transitions. [2023-11-06 22:56:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:56:03,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 213 [2023-11-06 22:56:03,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:03,142 INFO L225 Difference]: With dead ends: 177 [2023-11-06 22:56:03,142 INFO L226 Difference]: Without dead ends: 88 [2023-11-06 22:56:03,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 212 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 22:56:03,152 INFO L413 NwaCegarLoop]: 136 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, 136 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 22:56:03,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:56:03,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-06 22:56:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-06 22:56:03,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 52 states have internal predecessors, (68), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:56:03,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 136 transitions. [2023-11-06 22:56:03,224 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 136 transitions. Word has length 213 [2023-11-06 22:56:03,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:03,225 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 136 transitions. [2023-11-06 22:56:03,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-06 22:56:03,226 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 136 transitions. [2023-11-06 22:56:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-06 22:56:03,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:03,234 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:03,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:56:03,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:56:03,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:03,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:03,443 INFO L85 PathProgramCache]: Analyzing trace with hash 268510907, now seen corresponding path program 1 times [2023-11-06 22:56:03,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:03,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771899190] [2023-11-06 22:56:03,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:03,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:03,572 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:56:03,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538649234] [2023-11-06 22:56:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:03,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:03,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:03,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:03,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:56:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:03,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:56:03,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:04,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1143 proven. 54 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2023-11-06 22:56:04,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 45 proven. 54 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2023-11-06 22:56:04,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:04,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771899190] [2023-11-06 22:56:04,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:56:04,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538649234] [2023-11-06 22:56:04,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538649234] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:56:04,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:56:04,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-06 22:56:04,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304524196] [2023-11-06 22:56:04,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:56:04,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:56:04,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:04,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:56:04,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:56:04,438 INFO L87 Difference]: Start difference. First operand 88 states and 136 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-11-06 22:56:04,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:04,839 INFO L93 Difference]: Finished difference Result 181 states and 276 transitions. [2023-11-06 22:56:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:56:04,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 213 [2023-11-06 22:56:04,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:04,845 INFO L225 Difference]: With dead ends: 181 [2023-11-06 22:56:04,845 INFO L226 Difference]: Without dead ends: 96 [2023-11-06 22:56:04,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:56:04,848 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 115 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:04,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 221 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:56:04,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-06 22:56:04,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2023-11-06 22:56:04,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 55 states have internal predecessors, (70), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:56:04,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 138 transitions. [2023-11-06 22:56:04,873 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 138 transitions. Word has length 213 [2023-11-06 22:56:04,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:04,875 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 138 transitions. [2023-11-06 22:56:04,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-11-06 22:56:04,876 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 138 transitions. [2023-11-06 22:56:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-06 22:56:04,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:04,881 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:04,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:05,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:05,090 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:05,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:05,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1319836995, now seen corresponding path program 1 times [2023-11-06 22:56:05,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:05,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887421756] [2023-11-06 22:56:05,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:05,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:05,168 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:56:05,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181545765] [2023-11-06 22:56:05,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:05,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:05,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:05,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:05,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:56:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:05,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-06 22:56:05,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1229 proven. 60 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2023-11-06 22:56:06,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 132 proven. 63 refuted. 0 times theorem prover too weak. 2049 trivial. 0 not checked. [2023-11-06 22:56:06,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:06,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887421756] [2023-11-06 22:56:06,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:56:06,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181545765] [2023-11-06 22:56:06,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181545765] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:56:06,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:56:06,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2023-11-06 22:56:06,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880190664] [2023-11-06 22:56:06,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:56:06,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-06 22:56:06,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:06,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-06 22:56:06,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:56:06,929 INFO L87 Difference]: Start difference. First operand 92 states and 138 transitions. Second operand has 20 states, 20 states have (on average 4.65) internal successors, (93), 20 states have internal predecessors, (93), 6 states have call successors, (68), 4 states have call predecessors, (68), 8 states have return successors, (68), 6 states have call predecessors, (68), 6 states have call successors, (68) [2023-11-06 22:56:07,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:07,843 INFO L93 Difference]: Finished difference Result 197 states and 284 transitions. [2023-11-06 22:56:07,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:56:07,845 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.65) internal successors, (93), 20 states have internal predecessors, (93), 6 states have call successors, (68), 4 states have call predecessors, (68), 8 states have return successors, (68), 6 states have call predecessors, (68), 6 states have call successors, (68) Word has length 213 [2023-11-06 22:56:07,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:07,851 INFO L225 Difference]: With dead ends: 197 [2023-11-06 22:56:07,854 INFO L226 Difference]: Without dead ends: 108 [2023-11-06 22:56:07,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=332, Invalid=858, Unknown=0, NotChecked=0, Total=1190 [2023-11-06 22:56:07,858 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 338 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:07,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 271 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:56:07,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-06 22:56:07,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2023-11-06 22:56:07,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 62 states have internal predecessors, (72), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:56:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 140 transitions. [2023-11-06 22:56:07,937 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 140 transitions. Word has length 213 [2023-11-06 22:56:07,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:07,939 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 140 transitions. [2023-11-06 22:56:07,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.65) internal successors, (93), 20 states have internal predecessors, (93), 6 states have call successors, (68), 4 states have call predecessors, (68), 8 states have return successors, (68), 6 states have call predecessors, (68), 6 states have call successors, (68) [2023-11-06 22:56:07,939 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 140 transitions. [2023-11-06 22:56:07,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-06 22:56:07,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:07,944 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:07,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:08,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:08,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:08,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash 980985595, now seen corresponding path program 1 times [2023-11-06 22:56:08,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:08,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220101579] [2023-11-06 22:56:08,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:08,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:08,244 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:56:08,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028918115] [2023-11-06 22:56:08,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:08,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:08,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:08,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:08,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:56:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:08,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-06 22:56:08,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:19,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1641 proven. 327 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-06 22:56:19,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:34,521 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse13 (= (mod c_~var_1_22~0 c_~var_1_5~0) 0)) (.cse17 (+ c_~var_1_5~0 1)) (.cse8 (div c_~var_1_22~0 c_~var_1_5~0)) (.cse0 (+ |c_ULTIMATE.start_step_~stepLocal_0~0#1| 1))) (let ((.cse6 (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (div c_~var_1_22~0 ~var_1_6~0)) (< c_~var_1_5~0 ~var_1_6~0) (< ~var_1_6~0 0)))) (.cse2 (< c_~var_1_22~0 0)) (.cse4 (forall ((~var_1_6~0 Int)) (let ((.cse31 (div c_~var_1_22~0 ~var_1_6~0))) (or (< .cse0 .cse31) (= .cse31 .cse0) (< 0 (+ ~var_1_6~0 1)))))) (.cse9 (forall ((~var_1_6~0 Int)) (let ((.cse30 (div c_~var_1_22~0 ~var_1_6~0))) (or (< .cse0 .cse30) (< c_~var_1_5~0 ~var_1_6~0) (= .cse30 .cse0))))) (.cse12 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0)))) (.cse7 (< 0 (+ c_~var_1_22~0 1))) (.cse21 (< .cse0 .cse8)) (.cse19 (< 0 .cse17)) (.cse5 (< c_~var_1_5~0 0)) (.cse10 (not .cse13)) (.cse11 (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| .cse8)) (.cse14 (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| .cse8)) (.cse16 (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (+ .cse8 1)))) (and (forall ((~var_1_6~0 Int)) (let ((.cse1 (div c_~var_1_22~0 ~var_1_6~0))) (or (< .cse0 .cse1) (< c_~var_1_5~0 ~var_1_6~0) (= .cse1 .cse0) (< 0 (+ ~var_1_6~0 1))))) (or (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (div c_~var_1_22~0 ~var_1_6~0)) (< c_~var_1_5~0 ~var_1_6~0))) .cse2) (forall ((~var_1_6~0 Int)) (let ((.cse3 (div c_~var_1_22~0 ~var_1_6~0))) (or (< .cse0 .cse3) (< c_~var_1_5~0 ~var_1_6~0) (= .cse3 .cse0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))) (or (and .cse4 (or (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (div c_~var_1_22~0 ~var_1_6~0)) (< 0 (+ ~var_1_6~0 1)))) .cse2)) .cse5) (or .cse2 .cse6) (or .cse7 (forall ((~var_1_6~0 Int)) (or (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)) (< 0 (+ ~var_1_6~0 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or (and (<= .cse0 .cse8) .cse6) .cse2) (or .cse2 .cse9) (or .cse7 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (div c_~var_1_22~0 ~var_1_6~0)) (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< ~var_1_6~0 0))) (or .cse5 .cse10 .cse4) (or .cse5 (let ((.cse15 (and (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (div c_~var_1_22~0 ~var_1_6~0)) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< ~var_1_6~0 0))) (forall ((~var_1_6~0 Int)) (or (< ~var_1_6~0 .cse17) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))))) (and (or .cse10 .cse11 .cse12) (or .cse10 .cse11) (or .cse7 .cse13 .cse12) (or (and .cse14 .cse12) .cse11) (or .cse15 .cse16) (or .cse15 .cse11 .cse2) (or .cse15 .cse10 .cse11)))) (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (div c_~var_1_22~0 ~var_1_6~0)) (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (+ (div c_~var_1_22~0 ~var_1_6~0) 1)))) (or (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (div c_~var_1_22~0 ~var_1_6~0)) (< c_~var_1_5~0 ~var_1_6~0) (< 0 (+ ~var_1_6~0 1)))) .cse2) (forall ((~var_1_6~0 Int)) (let ((.cse18 (div c_~var_1_22~0 ~var_1_6~0))) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| .cse18) (< c_~var_1_5~0 ~var_1_6~0) (= .cse18 |c_ULTIMATE.start_step_~stepLocal_0~0#1|) (< ~var_1_6~0 0)))) (or .cse19 .cse9) (or .cse19 (and (or .cse7 .cse13 .cse4) .cse9)) (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (div c_~var_1_22~0 ~var_1_6~0)) (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or .cse5 (forall ((~var_1_6~0 Int)) (let ((.cse20 (div c_~var_1_22~0 ~var_1_6~0))) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| .cse20) (< c_~var_1_5~0 ~var_1_6~0) (= .cse20 |c_ULTIMATE.start_step_~stepLocal_0~0#1|))))) (or .cse21 (let ((.cse23 (= .cse8 .cse0)) (.cse22 (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0))))) (and (or (and (or .cse22 .cse23) (or .cse7 .cse13 .cse22)) .cse19) (or .cse23 (and (or .cse10 .cse22) (or .cse22 .cse16))) (or .cse10 .cse23) .cse12 (or .cse13 .cse22 .cse16) (or .cse7 .cse19 .cse13)))) (or (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (div c_~var_1_22~0 ~var_1_6~0)) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)))) .cse5) (or .cse7 (let ((.cse27 (forall ((~var_1_6~0 Int)) (or (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0))))) (let ((.cse26 (forall ((~var_1_6~0 Int)) (or (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))) (.cse25 (forall ((~var_1_6~0 Int)) (or (< ~var_1_6~0 .cse17) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))) (.cse24 (or .cse16 .cse27)) (.cse28 (or .cse14 .cse27))) (and (or (and .cse24 (or .cse25 .cse16) (or .cse19 (and (or .cse26 .cse21) (or .cse21 .cse27)))) .cse13) (or (and .cse25 .cse27 (or .cse26 .cse19)) .cse10 .cse11) (or .cse11 (and .cse28 (or .cse25 (and .cse10 .cse14 (<= 0 c_~var_1_5~0))) (or .cse10 .cse27) (or .cse19 .cse27))) (or .cse5 (let ((.cse29 (forall ((~var_1_6~0 Int)) (or (< ~var_1_6~0 .cse17) (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))) (and (or (and .cse24 (or .cse16 .cse29)) .cse13) (or (and .cse28 (or .cse14 .cse29)) .cse11) (or .cse10 .cse11 (and .cse27 .cse29))))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))))))))) is different from false [2023-11-06 22:56:40,119 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~var_1_25~0 c_~var_1_22~0 1)) (.cse13 (+ c_~var_1_5~0 1)) (.cse14 (= (mod c_~var_1_22~0 c_~var_1_5~0) 0)) (.cse2 (div c_~var_1_22~0 c_~var_1_5~0)) (.cse0 (+ c_~var_1_25~0 c_~var_1_22~0))) (let ((.cse3 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0)))) (.cse9 (< .cse0 (+ .cse2 1))) (.cse4 (< c_~var_1_22~0 0)) (.cse6 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0))))) (.cse12 (< .cse0 .cse2)) (.cse8 (forall ((~var_1_6~0 Int)) (or (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0)))) (.cse11 (not .cse14)) (.cse7 (< c_~var_1_5~0 0)) (.cse15 (forall ((~var_1_6~0 Int)) (or (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0))))) (.cse10 (< 0 (+ c_~var_1_22~0 1))) (.cse5 (< 0 .cse13)) (.cse16 (< .cse1 .cse2))) (and (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0))) (or (and (<= .cse1 .cse2) .cse3) .cse4) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse5 .cse6) (or (forall ((~var_1_6~0 Int)) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) .cse7) (or .cse8 .cse9) (or .cse10 (forall ((~var_1_6~0 Int)) (or (< .cse1 (div c_~var_1_22~0 ~var_1_6~0)) (< 0 (+ ~var_1_6~0 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or .cse11 .cse12) (or .cse7 (and (or (and (or (forall ((~var_1_6~0 Int)) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0))) .cse12) (or .cse12 (forall ((~var_1_6~0 Int)) (or (< ~var_1_6~0 .cse13) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))))) .cse4) (<= .cse0 .cse2))) (or .cse8 .cse11 .cse12) (or .cse5 (and (or .cse10 .cse14 .cse15) .cse6)) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse3 .cse4) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)))) (or .cse8 .cse14 .cse9) (or .cse4 .cse6) (or .cse10 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0))) (or .cse5 (and (or .cse8 .cse12) (or .cse10 .cse8 .cse14 .cse16))) (or .cse7 .cse11 .cse15) (or .cse7 .cse15) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse10 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))) (or .cse10 .cse5 .cse14 .cse16)))) is different from false [2023-11-06 22:57:20,365 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse30 (mod c_~var_1_28~0 65536))) (let ((.cse20 (mod c_~var_1_8~0 256)) (.cse9 (div c_~var_1_22~0 c_~var_1_5~0)) (.cse42 (+ c_~var_1_5~0 1)) (.cse16 (= (mod c_~var_1_22~0 c_~var_1_5~0) 0)) (.cse0 (+ .cse30 c_~var_1_22~0))) (let ((.cse14 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536))))) (.cse21 (mod c_~var_1_28~0 4294967296)) (.cse2 (not .cse16)) (.cse8 (forall ((~var_1_6~0 Int)) (or (< ~var_1_6~0 .cse42) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))) (.cse10 (< c_~var_1_5~0 0)) (.cse19 (+ .cse9 1)) (.cse13 (+ .cse30 c_~var_1_22~0 1)) (.cse26 (+ c_~var_1_22~0 1 .cse20)) (.cse7 (< c_~var_1_22~0 0)) (.cse5 (< 0 .cse42)) (.cse1 (< 0 (+ c_~var_1_22~0 1))) (.cse24 (+ c_~var_1_22~0 .cse20))) (and (forall ((~var_1_6~0 Int)) (or (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (< 0 (+ ~var_1_6~0 1)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or (let ((.cse12 (< .cse0 (+ 65536 .cse9))) (.cse3 (forall ((~var_1_6~0 Int)) (or (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0)))) (.cse17 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (< ~var_1_6~0 0)))) (.cse11 (forall ((~var_1_6~0 Int)) (or (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65537)) (< ~var_1_6~0 0)))) (.cse15 (forall ((~var_1_6~0 Int)) (or (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0))))) (.cse18 (< .cse0 (+ .cse9 65537))) (.cse6 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0))))) (.cse4 (< .cse0 .cse9))) (and (or .cse1 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse2 .cse3 .cse4) (or .cse5 .cse3 .cse4) (or .cse1 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or .cse6 .cse7) (or .cse2 .cse4) (or (and (or .cse7 (and (or .cse4 .cse8) (or (forall ((~var_1_6~0 Int)) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0))) .cse4))) (<= .cse0 .cse9)) .cse10) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse11 .cse5 .cse12) (or .cse1 (forall ((~var_1_6~0 Int)) (or (< .cse13 (div c_~var_1_22~0 ~var_1_6~0)) (< 0 (+ ~var_1_6~0 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or .cse14 .cse5) (or .cse5 (and (or .cse1 .cse15 .cse16) .cse6)) (or .cse2 .cse12) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (< 0 (+ ~var_1_6~0 1)))) (or .cse17 .cse7) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0))) (or .cse11 .cse2 .cse12) (or .cse15 .cse10 .cse2) (or .cse11 .cse16 .cse18) (or .cse1 (< .cse13 .cse9) .cse5 .cse16) (or (< .cse0 .cse19) .cse3) (or .cse7 (and .cse17 (<= .cse0 (+ .cse9 65535)))) (or .cse11 .cse18) (or .cse15 .cse10) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)))) (or (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0))) .cse7) (or .cse10 (forall ((~var_1_6~0 Int)) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0))))) (or .cse10 .cse18) (or .cse6 .cse5) (or .cse7 .cse4) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0))))) (< .cse20 .cse21)) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65537)))) (or .cse14 .cse7) (forall ((~var_1_6~0 Int)) (or (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65537)) (< ~var_1_6~0 0))) (or .cse1 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65537)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or (< .cse21 (+ 1 .cse20)) (let ((.cse25 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse24 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0)))) (.cse22 (< .cse24 .cse9)) (.cse27 (forall ((~var_1_6~0 Int)) (or (< 0 (+ ~var_1_6~0 1)) (< .cse24 (div c_~var_1_22~0 ~var_1_6~0))))) (.cse29 (< .cse24 .cse19)) (.cse23 (forall ((~var_1_6~0 Int)) (or (< .cse24 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0)))) (.cse28 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse24 (div c_~var_1_22~0 ~var_1_6~0)))))) (and (or .cse22 .cse5 .cse23) (or .cse1 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse24 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< 0 (+ ~var_1_6~0 1)) (< .cse24 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse25 .cse7) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse24 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0))) (or .cse22 .cse2) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse24 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse7 (and .cse25 (<= .cse26 .cse9))) (or .cse27 .cse10) (or .cse5 .cse28) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse24 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)))) (or .cse1 .cse5 .cse16 (< .cse26 .cse9)) (or .cse27 .cse10 .cse2) (or .cse1 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse24 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or (forall ((~var_1_6~0 Int)) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse24 (div c_~var_1_22~0 ~var_1_6~0)))) .cse10) (or .cse29 .cse16 .cse23) (or (and (or .cse7 (and (or .cse22 .cse8) (or .cse22 (forall ((~var_1_6~0 Int)) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse24 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0)))))) (<= .cse24 .cse9)) .cse10) (or .cse5 (and .cse28 (or .cse1 .cse27 .cse16))) (or .cse29 .cse23) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse24 (div c_~var_1_22~0 ~var_1_6~0)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse24 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0))) (or .cse7 .cse28) (or .cse1 (forall ((~var_1_6~0 Int)) (or (< 0 (+ ~var_1_6~0 1)) (< .cse26 (div c_~var_1_22~0 ~var_1_6~0)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))))) (or (< 32767 .cse30) (let ((.cse39 (forall ((~var_1_6~0 Int)) (let ((.cse41 (div c_~var_1_22~0 ~var_1_6~0))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse41) (< .cse24 .cse41)))))) (and (forall ((~var_1_6~0 Int)) (let ((.cse31 (+ (div c_~var_1_22~0 ~var_1_6~0) 1))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse31) (< .cse24 .cse31)))) (forall ((~var_1_6~0 Int)) (let ((.cse32 (div c_~var_1_22~0 ~var_1_6~0))) (or (< 0 (+ ~var_1_6~0 1)) (< .cse0 .cse32) (< .cse24 .cse32)))) (forall ((~var_1_6~0 Int)) (let ((.cse33 (div c_~var_1_22~0 ~var_1_6~0))) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse0 .cse33) (< .cse24 .cse33)))) (forall ((~var_1_6~0 Int)) (let ((.cse34 (div c_~var_1_22~0 ~var_1_6~0))) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 .cse34) (< .cse24 .cse34)))) (forall ((~var_1_6~0 Int)) (let ((.cse35 (+ (div c_~var_1_22~0 ~var_1_6~0) 1))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse35) (< .cse24 .cse35) (< ~var_1_6~0 0)))) (forall ((~var_1_6~0 Int)) (let ((.cse36 (div c_~var_1_22~0 ~var_1_6~0))) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 .cse36) (< .cse24 .cse36) (< ~var_1_6~0 0)))) (or .cse1 (forall ((~var_1_6~0 Int)) (let ((.cse37 (+ (div c_~var_1_22~0 ~var_1_6~0) 1))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse37) (< .cse24 .cse37) (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))) (or .cse1 (forall ((~var_1_6~0 Int)) (let ((.cse38 (div c_~var_1_22~0 ~var_1_6~0))) (or (< .cse13 .cse38) (< 0 (+ ~var_1_6~0 1)) (< .cse26 .cse38) (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))) (or .cse39 .cse7) (or .cse5 .cse39) (or .cse1 (forall ((~var_1_6~0 Int)) (let ((.cse40 (+ (div c_~var_1_22~0 ~var_1_6~0) 1))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse40) (< .cse24 .cse40) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))))))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< ~var_1_6~0 0))))))) is different from false [2023-11-06 22:57:49,357 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse10 (mod c_~var_1_8~0 256)) (.cse16 (mod c_~var_1_28~0 65536)) (.cse9 (= (mod c_~var_1_22~0 c_~var_1_5~0) 0))) (let ((.cse11 (mod c_~var_1_28~0 4294967296)) (.cse4 (not .cse9)) (.cse7 (div c_~var_1_22~0 c_~var_1_5~0)) (.cse6 (+ .cse16 c_~var_1_22~0 1)) (.cse12 (+ c_~var_1_22~0 1 .cse10)) (.cse1 (< c_~var_1_22~0 0)) (.cse8 (< 0 (+ c_~var_1_5~0 1))) (.cse2 (< 0 (+ c_~var_1_22~0 1))) (.cse13 (+ c_~var_1_22~0 .cse10)) (.cse0 (+ .cse16 c_~var_1_22~0))) (and (forall ((~var_1_6~0 Int)) (or (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (< 0 (+ ~var_1_6~0 1)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65537)))) (or (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)))) .cse1) (forall ((~var_1_6~0 Int)) (or (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65537)) (< ~var_1_6~0 0))) (or .cse2 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65537)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or (let ((.cse3 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0))))) (.cse5 (< .cse0 .cse7))) (and (or .cse2 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse2 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (or .cse3 .cse1) (or .cse4 .cse5) (forall ((~var_1_6~0 Int)) (or (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse2 (forall ((~var_1_6~0 Int)) (or (< .cse6 (div c_~var_1_22~0 ~var_1_6~0)) (< 0 (+ ~var_1_6~0 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (<= .cse0 .cse7) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0))) (forall ((~var_1_6~0 Int)) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse0 (div c_~var_1_22~0 ~var_1_6~0)))) (or (< .cse6 .cse7) .cse8 .cse9) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)))) (or .cse3 .cse8) (or .cse1 .cse5) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0))))) (< .cse10 .cse11)) (or (< .cse11 (+ 1 .cse10)) (let ((.cse14 (< .cse13 .cse7)) (.cse15 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse13 (div c_~var_1_22~0 ~var_1_6~0)))))) (and (or .cse8 .cse9 (< .cse12 .cse7)) (or .cse2 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse13 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))) (forall ((~var_1_6~0 Int)) (or (< 0 (+ ~var_1_6~0 1)) (< .cse13 (div c_~var_1_22~0 ~var_1_6~0)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse13 (div c_~var_1_22~0 ~var_1_6~0)) (< ~var_1_6~0 0))) (forall ((~var_1_6~0 Int)) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse13 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse14 .cse4) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse13 (div c_~var_1_22~0 ~var_1_6~0)))) (or .cse14 .cse1) (<= .cse13 .cse7) (or .cse8 .cse15) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse13 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)))) (or .cse2 (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse13 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0)))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse13 (+ (div c_~var_1_22~0 ~var_1_6~0) 1)) (< ~var_1_6~0 0))) (or .cse1 .cse15) (or .cse2 (forall ((~var_1_6~0 Int)) (or (< 0 (+ ~var_1_6~0 1)) (< .cse12 (div c_~var_1_22~0 ~var_1_6~0)) (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))))) (or (< 32767 .cse16) (let ((.cse25 (forall ((~var_1_6~0 Int)) (let ((.cse27 (div c_~var_1_22~0 ~var_1_6~0))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse27) (< .cse13 .cse27)))))) (and (forall ((~var_1_6~0 Int)) (let ((.cse17 (+ (div c_~var_1_22~0 ~var_1_6~0) 1))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse17) (< .cse13 .cse17)))) (forall ((~var_1_6~0 Int)) (let ((.cse18 (div c_~var_1_22~0 ~var_1_6~0))) (or (< 0 (+ ~var_1_6~0 1)) (< .cse0 .cse18) (< .cse13 .cse18)))) (forall ((~var_1_6~0 Int)) (let ((.cse19 (div c_~var_1_22~0 ~var_1_6~0))) (or (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< 0 (+ ~var_1_6~0 1)) (< .cse0 .cse19) (< .cse13 .cse19)))) (forall ((~var_1_6~0 Int)) (let ((.cse20 (div c_~var_1_22~0 ~var_1_6~0))) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 .cse20) (< .cse13 .cse20)))) (forall ((~var_1_6~0 Int)) (let ((.cse21 (+ (div c_~var_1_22~0 ~var_1_6~0) 1))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse21) (< .cse13 .cse21) (< ~var_1_6~0 0)))) (forall ((~var_1_6~0 Int)) (let ((.cse22 (div c_~var_1_22~0 ~var_1_6~0))) (or (< c_~var_1_5~0 ~var_1_6~0) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< .cse0 .cse22) (< .cse13 .cse22) (< ~var_1_6~0 0)))) (or .cse2 (forall ((~var_1_6~0 Int)) (let ((.cse23 (+ (div c_~var_1_22~0 ~var_1_6~0) 1))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse23) (< .cse13 .cse23) (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))) (or .cse2 (forall ((~var_1_6~0 Int)) (let ((.cse24 (div c_~var_1_22~0 ~var_1_6~0))) (or (< .cse6 .cse24) (< 0 (+ ~var_1_6~0 1)) (< .cse12 .cse24) (= (mod c_~var_1_22~0 ~var_1_6~0) 0))))) (or .cse25 .cse1) (or .cse8 .cse25) (or .cse2 (forall ((~var_1_6~0 Int)) (let ((.cse26 (+ (div c_~var_1_22~0 ~var_1_6~0) 1))) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 .cse26) (< .cse13 .cse26) (= (mod c_~var_1_22~0 ~var_1_6~0) 0) (< ~var_1_6~0 0)))))))) (forall ((~var_1_6~0 Int)) (or (< c_~var_1_5~0 ~var_1_6~0) (< .cse0 (+ (div c_~var_1_22~0 ~var_1_6~0) 65536)) (not (= (mod c_~var_1_22~0 ~var_1_6~0) 0)) (< ~var_1_6~0 0)))))) is different from false [2023-11-06 22:57:49,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 139 [2023-11-06 22:57:49,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:57:49,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220101579] [2023-11-06 22:57:49,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:57:49,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028918115] [2023-11-06 22:57:49,418 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-06 22:57:49,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:57:49,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:57:49,619 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:852) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:774) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:362) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:311) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:579) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 45 more [2023-11-06 22:57:49,641 INFO L158 Benchmark]: Toolchain (without parser) took 109113.07ms. Allocated memory was 134.2MB in the beginning and 471.9MB in the end (delta: 337.6MB). Free memory was 87.7MB in the beginning and 193.0MB in the end (delta: -105.3MB). Peak memory consumption was 233.9MB. Max. memory is 16.1GB. [2023-11-06 22:57:49,642 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:57:49,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.03ms. Allocated memory is still 134.2MB. Free memory was 87.3MB in the beginning and 70.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:57:49,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.41ms. Allocated memory is still 134.2MB. Free memory was 70.9MB in the beginning and 65.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:57:49,648 INFO L158 Benchmark]: Boogie Preprocessor took 59.72ms. Allocated memory is still 134.2MB. Free memory was 65.9MB in the beginning and 63.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:57:49,648 INFO L158 Benchmark]: RCFGBuilder took 807.70ms. Allocated memory is still 134.2MB. Free memory was 63.0MB in the beginning and 74.2MB in the end (delta: -11.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-11-06 22:57:49,649 INFO L158 Benchmark]: TraceAbstraction took 107635.39ms. Allocated memory was 134.2MB in the beginning and 471.9MB in the end (delta: 337.6MB). Free memory was 73.9MB in the beginning and 193.0MB in the end (delta: -119.1MB). Peak memory consumption was 219.1MB. Max. memory is 16.1GB. [2023-11-06 22:57:49,652 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 104.9MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.03ms. Allocated memory is still 134.2MB. Free memory was 87.3MB in the beginning and 70.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.41ms. Allocated memory is still 134.2MB. Free memory was 70.9MB in the beginning and 65.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.72ms. Allocated memory is still 134.2MB. Free memory was 65.9MB in the beginning and 63.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 807.70ms. Allocated memory is still 134.2MB. Free memory was 63.0MB in the beginning and 74.2MB in the end (delta: -11.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * TraceAbstraction took 107635.39ms. Allocated memory was 134.2MB in the beginning and 471.9MB in the end (delta: 337.6MB). Free memory was 73.9MB in the beginning and 193.0MB in the end (delta: -119.1MB). Peak memory consumption was 219.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 983db8b9d7b8c1a6cf88f0ccf9f67454cabc986e490bff9f0d35f6b76f68db9d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:57:52,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:57:52,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:57:52,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:57:52,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:57:52,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:57:52,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:57:52,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:57:52,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:57:52,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:57:52,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:57:52,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:57:52,721 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:57:52,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:57:52,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:57:52,725 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:57:52,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:57:52,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:57:52,727 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:57:52,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:57:52,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:57:52,728 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:57:52,729 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:57:52,729 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:57:52,730 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:57:52,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:57:52,731 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:57:52,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:57:52,732 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:57:52,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:57:52,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:57:52,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:57:52,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:57:52,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:57:52,735 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:57:52,735 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:57:52,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:57:52,736 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:57:52,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:57:52,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:57:52,738 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:57:52,738 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:57:52,739 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_ea92c61c-842f-42e2-addf-36a25bcae6b3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983db8b9d7b8c1a6cf88f0ccf9f67454cabc986e490bff9f0d35f6b76f68db9d [2023-11-06 22:57:53,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:57:53,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:57:53,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:57:53,360 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:57:53,361 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:57:53,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i [2023-11-06 22:57:57,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:57:57,502 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:57:57,503 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i [2023-11-06 22:57:57,572 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/data/708eb8cd1/2130fef5be844481abc570a34d53f84b/FLAG1ec535a42 [2023-11-06 22:57:57,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/data/708eb8cd1/2130fef5be844481abc570a34d53f84b [2023-11-06 22:57:57,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:57:57,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:57:57,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:57:57,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:57:57,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:57:57,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:57:57" (1/1) ... [2023-11-06 22:57:57,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2efa3fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:57, skipping insertion in model container [2023-11-06 22:57:57,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:57:57" (1/1) ... [2023-11-06 22:57:57,671 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:57:57,874 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_ea92c61c-842f-42e2-addf-36a25bcae6b3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i[916,929] [2023-11-06 22:57:58,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:57:58,084 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:57:58,104 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_ea92c61c-842f-42e2-addf-36a25bcae6b3/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-87.i[916,929] [2023-11-06 22:57:58,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:57:58,235 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:57:58,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58 WrapperNode [2023-11-06 22:57:58,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:57:58,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:57:58,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:57:58,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:57:58,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,288 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,350 INFO L138 Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2023-11-06 22:57:58,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:57:58,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:57:58,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:57:58,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:57:58,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:57:58,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:57:58,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:57:58,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:57:58,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (1/1) ... [2023-11-06 22:57:58,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:57:58,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:57:58,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:57:58,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:57:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:57:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:57:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:57:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:57:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:57:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:57:58,808 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:57:58,811 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:58:00,330 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:58:00,340 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:58:00,340 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:58:00,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:00 BoogieIcfgContainer [2023-11-06 22:58:00,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:58:00,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:58:00,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:58:00,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:58:00,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:57:57" (1/3) ... [2023-11-06 22:58:00,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4a6931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:00, skipping insertion in model container [2023-11-06 22:58:00,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:58" (2/3) ... [2023-11-06 22:58:00,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4a6931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:00, skipping insertion in model container [2023-11-06 22:58:00,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:00" (3/3) ... [2023-11-06 22:58:00,356 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-87.i [2023-11-06 22:58:00,381 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:58:00,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:58:00,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:58:00,471 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;@d61654a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:58:00,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:58:00,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 56 states have internal predecessors, (75), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:58:00,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-06 22:58:00,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:00,502 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:00,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:00,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:00,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1518696061, now seen corresponding path program 1 times [2023-11-06 22:58:00,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:58:00,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774301507] [2023-11-06 22:58:00,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:00,547 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 22:58:00,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:58:00,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:00,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:01,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:58:01,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 1314 trivial. 0 not checked. [2023-11-06 22:58:01,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:58:01,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:58:01,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774301507] [2023-11-06 22:58:01,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774301507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:01,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:01,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:01,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830539295] [2023-11-06 22:58:01,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:01,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:58:01,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:58:01,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:58:01,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:58:01,436 INFO L87 Difference]: Start difference. First operand has 92 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 56 states have internal predecessors, (75), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-06 22:58:01,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:01,502 INFO L93 Difference]: Finished difference Result 177 states and 314 transitions. [2023-11-06 22:58:01,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:58:01,507 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 213 [2023-11-06 22:58:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:01,520 INFO L225 Difference]: With dead ends: 177 [2023-11-06 22:58:01,520 INFO L226 Difference]: Without dead ends: 88 [2023-11-06 22:58:01,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 212 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 22:58:01,531 INFO L413 NwaCegarLoop]: 136 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, 136 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 22:58:01,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:58:01,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-06 22:58:01,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-06 22:58:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 52 states have internal predecessors, (68), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:58:01,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 136 transitions. [2023-11-06 22:58:01,635 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 136 transitions. Word has length 213 [2023-11-06 22:58:01,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:01,637 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 136 transitions. [2023-11-06 22:58:01,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-06 22:58:01,638 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 136 transitions. [2023-11-06 22:58:01,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-06 22:58:01,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:01,654 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:01,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:01,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:01,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:01,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:01,871 INFO L85 PathProgramCache]: Analyzing trace with hash 268510907, now seen corresponding path program 1 times [2023-11-06 22:58:01,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:58:01,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104728762] [2023-11-06 22:58:01,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:01,873 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 22:58:01,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:58:01,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:01,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:02,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:58:02,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1229 proven. 60 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2023-11-06 22:58:03,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 132 proven. 63 refuted. 0 times theorem prover too weak. 2049 trivial. 0 not checked. [2023-11-06 22:58:04,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:58:04,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104728762] [2023-11-06 22:58:04,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104728762] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:58:04,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:58:04,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-06 22:58:04,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418878086] [2023-11-06 22:58:04,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:04,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:58:04,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:58:04,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:58:04,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:58:04,450 INFO L87 Difference]: Start difference. First operand 88 states and 136 transitions. Second operand has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2023-11-06 22:58:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:07,255 INFO L93 Difference]: Finished difference Result 274 states and 410 transitions. [2023-11-06 22:58:07,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:58:07,256 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 213 [2023-11-06 22:58:07,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:07,264 INFO L225 Difference]: With dead ends: 274 [2023-11-06 22:58:07,264 INFO L226 Difference]: Without dead ends: 189 [2023-11-06 22:58:07,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 410 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2023-11-06 22:58:07,269 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 513 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:07,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 333 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-06 22:58:07,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-06 22:58:07,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 176. [2023-11-06 22:58:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 105 states have internal predecessors, (131), 66 states have call successors, (66), 5 states have call predecessors, (66), 5 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-06 22:58:07,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 263 transitions. [2023-11-06 22:58:07,320 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 263 transitions. Word has length 213 [2023-11-06 22:58:07,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:07,322 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 263 transitions. [2023-11-06 22:58:07,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2023-11-06 22:58:07,323 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 263 transitions. [2023-11-06 22:58:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-06 22:58:07,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:07,329 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:07,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:07,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:07,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:07,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:07,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1725633799, now seen corresponding path program 1 times [2023-11-06 22:58:07,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:58:07,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134133715] [2023-11-06 22:58:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:07,557 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 22:58:07,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:58:07,559 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:07,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:08,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:58:08,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1143 proven. 54 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2023-11-06 22:58:08,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:09,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 45 proven. 54 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2023-11-06 22:58:09,199 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:58:09,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134133715] [2023-11-06 22:58:09,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134133715] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:58:09,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:58:09,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-06 22:58:09,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102184950] [2023-11-06 22:58:09,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:09,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:58:09,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:58:09,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:58:09,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:09,204 INFO L87 Difference]: Start difference. First operand 176 states and 263 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-11-06 22:58:10,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:10,437 INFO L93 Difference]: Finished difference Result 369 states and 541 transitions. [2023-11-06 22:58:10,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:58:10,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 213 [2023-11-06 22:58:10,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:10,479 INFO L225 Difference]: With dead ends: 369 [2023-11-06 22:58:10,479 INFO L226 Difference]: Without dead ends: 196 [2023-11-06 22:58:10,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:58:10,490 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 117 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:10,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 218 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-06 22:58:10,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-06 22:58:10,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 184. [2023-11-06 22:58:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 111 states have internal predecessors, (135), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-06 22:58:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 267 transitions. [2023-11-06 22:58:10,566 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 267 transitions. Word has length 213 [2023-11-06 22:58:10,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:10,567 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 267 transitions. [2023-11-06 22:58:10,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-11-06 22:58:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 267 transitions. [2023-11-06 22:58:10,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-06 22:58:10,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:10,572 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:10,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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)] Ended with exit code 0 [2023-11-06 22:58:10,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:10,797 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:10,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash 980985595, now seen corresponding path program 1 times [2023-11-06 22:58:10,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:58:10,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465768409] [2023-11-06 22:58:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:10,800 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 22:58:10,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:58:10,801 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:58:10,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 (5)] Waiting until timeout for monitored process [2023-11-06 22:58:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:11,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:58:11,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:23,471 WARN L861 $PredicateComparison]: unable to prove that (and (exists ((~var_1_18~0 (_ BitVec 16)) (~var_1_9~0 (_ BitVec 16))) (bvslt (bvadd ((_ zero_extend 16) ~var_1_9~0) ((_ zero_extend 16) ~var_1_18~0)) (bvsdiv c_~var_1_5~0 (_ bv4294967196 32)))) (let ((.cse0 ((_ sign_extend 16) c_~var_1_22~0))) (or (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_28~0 (_ BitVec 32)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse2 ((_ sign_extend 24) ~var_1_33~0)) (.cse1 ((_ sign_extend 24) ~var_1_36~0)) (.cse3 ((_ zero_extend 24) ~var_1_8~0))) (and (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd ((_ sign_extend 16) ((_ extract 15 0) ~var_1_28~0)) .cse0)) (bvsgt .cse1 .cse2) (bvsge .cse2 (_ bv62 32)) (= c_~var_1_22~0 ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse3))) ((_ sign_extend 24) ((_ extract 7 0) .cse1))))) (not (bvslt ((_ sign_extend 24) ~var_1_37~0) .cse1)) (not (bvult .cse3 ~var_1_28~0))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse4 ((_ sign_extend 24) ~var_1_33~0)) (.cse5 ((_ sign_extend 24) ~var_1_37~0)) (.cse6 ((_ zero_extend 24) ~var_1_8~0))) (and (bvsge .cse4 (_ bv62 32)) (not (bvsgt .cse5 .cse4)) (bvslt .cse5 ((_ sign_extend 24) ~var_1_36~0)) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse6))) ((_ sign_extend 24) ((_ extract 7 0) .cse4)))) c_~var_1_22~0) (bvsge .cse5 (_ bv0 32)) (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) .cse6))))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse8 ((_ sign_extend 24) ~var_1_33~0)) (.cse7 ((_ sign_extend 24) ~var_1_36~0)) (.cse9 ((_ zero_extend 24) ~var_1_8~0))) (and (bvsgt .cse7 .cse8) (bvsge .cse8 (_ bv62 32)) (= c_~var_1_22~0 ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse9))) ((_ sign_extend 24) ((_ extract 7 0) .cse7))))) (not (bvslt ((_ sign_extend 24) ~var_1_37~0) .cse7)) (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) .cse9))))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_28~0 (_ BitVec 32)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse10 ((_ sign_extend 24) ~var_1_33~0)) (.cse11 ((_ sign_extend 24) ~var_1_37~0)) (.cse12 ((_ zero_extend 24) ~var_1_8~0))) (and (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd ((_ sign_extend 16) ((_ extract 15 0) ~var_1_28~0)) .cse0)) (bvsge .cse10 (_ bv62 32)) (= c_~var_1_22~0 ((_ extract 15 0) (bvadd ((_ sign_extend 24) ((_ extract 7 0) .cse11)) (bvneg (bvadd (_ bv30604 32) (bvneg .cse12)))))) (bvsgt .cse11 .cse10) (bvslt .cse11 ((_ sign_extend 24) ~var_1_36~0)) (not (bvult .cse12 ~var_1_28~0))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse14 ((_ sign_extend 24) ~var_1_36~0)) (.cse13 ((_ sign_extend 24) ~var_1_33~0)) (.cse15 ((_ zero_extend 24) ~var_1_8~0))) (and (bvsge .cse13 (_ bv62 32)) (not (bvsgt .cse14 .cse13)) (bvsge .cse14 (_ bv0 32)) (not (bvslt ((_ sign_extend 24) ~var_1_37~0) .cse14)) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse15))) ((_ sign_extend 24) ((_ extract 7 0) .cse13)))) c_~var_1_22~0) (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) .cse15))))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_28~0 (_ BitVec 32)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse17 ((_ sign_extend 24) ~var_1_36~0)) (.cse16 ((_ sign_extend 24) ~var_1_33~0)) (.cse18 ((_ zero_extend 24) ~var_1_8~0))) (and (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd ((_ sign_extend 16) ((_ extract 15 0) ~var_1_28~0)) .cse0)) (bvsge .cse16 (_ bv62 32)) (not (bvsgt .cse17 .cse16)) (bvsge .cse17 (_ bv0 32)) (not (bvslt ((_ sign_extend 24) ~var_1_37~0) .cse17)) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse18))) ((_ sign_extend 24) ((_ extract 7 0) .cse16)))) c_~var_1_22~0) (not (bvult .cse18 ~var_1_28~0))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse19 ((_ sign_extend 24) ~var_1_33~0)) (.cse20 ((_ sign_extend 24) ~var_1_37~0)) (.cse21 ((_ zero_extend 24) ~var_1_8~0))) (and (bvsge .cse19 (_ bv62 32)) (= c_~var_1_22~0 ((_ extract 15 0) (bvadd ((_ sign_extend 24) ((_ extract 7 0) .cse20)) (bvneg (bvadd (_ bv30604 32) (bvneg .cse21)))))) (bvsgt .cse20 .cse19) (bvslt .cse20 ((_ sign_extend 24) ~var_1_36~0)) (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd .cse0 ((_ sign_extend 16) ((_ extract 15 0) .cse21))))))) (exists ((~var_1_8~0 (_ BitVec 8)) (~var_1_36~0 (_ BitVec 8)) (~var_1_37~0 (_ BitVec 8)) (~var_1_28~0 (_ BitVec 32)) (~var_1_33~0 (_ BitVec 8))) (let ((.cse22 ((_ sign_extend 24) ~var_1_33~0)) (.cse23 ((_ sign_extend 24) ~var_1_37~0)) (.cse24 ((_ zero_extend 24) ~var_1_8~0))) (and (= |c_ULTIMATE.start_step_~stepLocal_0~0#1| (bvadd ((_ sign_extend 16) ((_ extract 15 0) ~var_1_28~0)) .cse0)) (bvsge .cse22 (_ bv62 32)) (not (bvsgt .cse23 .cse22)) (bvslt .cse23 ((_ sign_extend 24) ~var_1_36~0)) (= ((_ extract 15 0) (bvadd (bvneg (bvadd (_ bv30604 32) (bvneg .cse24))) ((_ sign_extend 24) ((_ extract 7 0) .cse22)))) c_~var_1_22~0) (bvsge .cse23 (_ bv0 32)) (not (bvult .cse24 ~var_1_28~0)))))))) is different from true [2023-11-06 22:58:23,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1040 proven. 30 refuted. 0 times theorem prover too weak. 1174 trivial. 0 not checked. [2023-11-06 22:58:23,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:47,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-11-06 22:58:47,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:58:47,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465768409] [2023-11-06 22:58:47,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465768409] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:47,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:58:47,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 20 [2023-11-06 22:58:47,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120255442] [2023-11-06 22:58:47,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:47,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:58:47,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:58:47,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:58:47,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=285, Unknown=2, NotChecked=34, Total=380 [2023-11-06 22:58:47,611 INFO L87 Difference]: Start difference. First operand 184 states and 267 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-11-06 22:59:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:16,566 INFO L93 Difference]: Finished difference Result 433 states and 623 transitions. [2023-11-06 22:59:16,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:59:16,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213 [2023-11-06 22:59:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:16,586 INFO L225 Difference]: With dead ends: 433 [2023-11-06 22:59:16,586 INFO L226 Difference]: Without dead ends: 252 [2023-11-06 22:59:16,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 40.1s TimeCoverageRelationStatistics Valid=72, Invalid=349, Unknown=3, NotChecked=38, Total=462 [2023-11-06 22:59:16,589 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 127 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:16,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 456 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-11-06 22:59:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-06 22:59:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 198. [2023-11-06 22:59:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 124 states have (on average 1.25) internal successors, (155), 125 states have internal predecessors, (155), 66 states have call successors, (66), 7 states have call predecessors, (66), 7 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-06 22:59:16,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 287 transitions. [2023-11-06 22:59:16,640 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 287 transitions. Word has length 213 [2023-11-06 22:59:16,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:16,641 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 287 transitions. [2023-11-06 22:59:16,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-11-06 22:59:16,642 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 287 transitions. [2023-11-06 22:59:16,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-06 22:59:16,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:16,646 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:16,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:16,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:59:16,868 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:16,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:16,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1661043965, now seen corresponding path program 1 times [2023-11-06 22:59:16,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:16,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168573999] [2023-11-06 22:59:16,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:16,870 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 22:59:16,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:16,871 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 22:59:16,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea92c61c-842f-42e2-addf-36a25bcae6b3/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 (6)] Waiting until timeout for monitored process [2023-11-06 22:59:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:17,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-06 22:59:17,689 INFO L285 TraceCheckSpWp]: Computing forward predicates...