./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 cde8d0b7ae63daaf73229c98a276eed51f74faeadb0d74d5645e79b969a982b1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:08:37,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:08:38,010 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:08:38,015 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:08:38,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:08:38,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:08:38,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:08:38,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:08:38,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:08:38,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:08:38,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:08:38,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:08:38,047 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:08:38,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:08:38,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:08:38,049 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:08:38,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:08:38,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:08:38,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:08:38,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:08:38,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:08:38,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:08:38,052 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:08:38,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:08:38,053 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:08:38,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:08:38,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:08:38,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:08:38,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:38,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:08:38,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:08:38,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:08:38,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:08:38,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:08:38,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:08:38,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:08:38,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:08:38,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:08:38,058 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:08:38,058 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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cde8d0b7ae63daaf73229c98a276eed51f74faeadb0d74d5645e79b969a982b1 [2023-11-06 22:08:38,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:08:38,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:08:38,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:08:38,413 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:08:38,414 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:08:38,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i [2023-11-06 22:08:41,415 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:08:41,643 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:08:41,644 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i [2023-11-06 22:08:41,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/data/a7604b259/b29aa9f3c538443dbbeb2acaad6a03a8/FLAG70b9dda8a [2023-11-06 22:08:41,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/data/a7604b259/b29aa9f3c538443dbbeb2acaad6a03a8 [2023-11-06 22:08:41,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:08:41,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:08:41,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:41,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:08:41,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:08:41,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:41,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aab015b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41, skipping insertion in model container [2023-11-06 22:08:41,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:41,714 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:08:41,854 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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i[915,928] [2023-11-06 22:08:41,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:41,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:08:41,924 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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i[915,928] [2023-11-06 22:08:41,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:41,967 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:08:41,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41 WrapperNode [2023-11-06 22:08:41,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:41,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:41,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:08:41,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:08:41,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:41,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,021 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2023-11-06 22:08:42,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:42,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:08:42,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:08:42,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:08:42,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:08:42,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:08:42,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:08:42,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:08:42,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (1/1) ... [2023-11-06 22:08:42,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:42,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:08:42,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:08:42,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:08:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:08:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:08:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:08:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:08:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:08:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:08:42,219 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:08:42,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:08:42,475 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:08:42,483 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:08:42,484 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:08:42,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:42 BoogieIcfgContainer [2023-11-06 22:08:42,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:08:42,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:08:42,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:08:42,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:08:42,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:08:41" (1/3) ... [2023-11-06 22:08:42,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@882186c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:42, skipping insertion in model container [2023-11-06 22:08:42,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:41" (2/3) ... [2023-11-06 22:08:42,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@882186c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:42, skipping insertion in model container [2023-11-06 22:08:42,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:42" (3/3) ... [2023-11-06 22:08:42,496 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-76.i [2023-11-06 22:08:42,515 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:08:42,515 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:08:42,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:08:42,584 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;@f64edf6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:08:42,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:08:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:08:42,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:08:42,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:42,600 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:42,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:42,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:42,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1176229072, now seen corresponding path program 1 times [2023-11-06 22:08:42,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:42,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325022247] [2023-11-06 22:08:42,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:42,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:08:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:08:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:08:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:08:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:08:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:08:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:08:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:08:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:08:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:08:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:08:42,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:42,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325022247] [2023-11-06 22:08:42,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325022247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:42,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:42,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:08:42,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511872966] [2023-11-06 22:08:42,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:42,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:08:42,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:42,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:08:42,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:08:42,976 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:08:43,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:43,010 INFO L93 Difference]: Finished difference Result 73 states and 116 transitions. [2023-11-06 22:08:43,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:08:43,012 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2023-11-06 22:08:43,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:43,017 INFO L225 Difference]: With dead ends: 73 [2023-11-06 22:08:43,017 INFO L226 Difference]: Without dead ends: 36 [2023-11-06 22:08:43,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 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 22:08:43,025 INFO L413 NwaCegarLoop]: 49 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, 49 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 22:08:43,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:08:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-06 22:08:43,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-06 22:08:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:08:43,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2023-11-06 22:08:43,068 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 69 [2023-11-06 22:08:43,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:43,069 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2023-11-06 22:08:43,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:08:43,069 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2023-11-06 22:08:43,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:08:43,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:43,073 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:43,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:08:43,074 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:43,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:43,075 INFO L85 PathProgramCache]: Analyzing trace with hash -949125036, now seen corresponding path program 1 times [2023-11-06 22:08:43,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:43,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541531084] [2023-11-06 22:08:43,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:43,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:08:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:08:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:08:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:08:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:08:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:08:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:08:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:08:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:08:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:08:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:08:43,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:43,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541531084] [2023-11-06 22:08:43,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541531084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:43,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:43,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:08:43,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120550370] [2023-11-06 22:08:43,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:43,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:08:43,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:08:43,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:08:43,606 INFO L87 Difference]: Start difference. First operand 36 states and 49 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:08:43,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:43,667 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2023-11-06 22:08:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:08:43,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2023-11-06 22:08:43,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:43,672 INFO L225 Difference]: With dead ends: 102 [2023-11-06 22:08:43,672 INFO L226 Difference]: Without dead ends: 69 [2023-11-06 22:08:43,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:08:43,675 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 28 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:08:43,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 131 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:08:43,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-06 22:08:43,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2023-11-06 22:08:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 44 states have internal predecessors, (53), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-06 22:08:43,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2023-11-06 22:08:43,702 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 69 [2023-11-06 22:08:43,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:43,704 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2023-11-06 22:08:43,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:08:43,704 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2023-11-06 22:08:43,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:08:43,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:43,708 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:43,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:08:43,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:43,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:43,709 INFO L85 PathProgramCache]: Analyzing trace with hash -891866734, now seen corresponding path program 1 times [2023-11-06 22:08:43,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:43,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631895898] [2023-11-06 22:08:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:43,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:08:43,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:08:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:08:43,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:08:43,994 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:08:43,995 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:08:43,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:08:44,001 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 22:08:44,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:08:44,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:08:44 BoogieIcfgContainer [2023-11-06 22:08:44,114 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:08:44,115 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:08:44,116 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:08:44,116 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:08:44,117 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:42" (3/4) ... [2023-11-06 22:08:44,122 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:08:44,123 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:08:44,124 INFO L158 Benchmark]: Toolchain (without parser) took 2450.89ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 82.4MB in the beginning and 98.6MB in the end (delta: -16.2MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2023-11-06 22:08:44,125 INFO L158 Benchmark]: CDTParser took 4.30ms. Allocated memory is still 96.5MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:08:44,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.02ms. Allocated memory is still 125.8MB. Free memory was 82.4MB in the beginning and 70.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:08:44,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.38ms. Allocated memory is still 125.8MB. Free memory was 70.2MB in the beginning and 67.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:08:44,127 INFO L158 Benchmark]: Boogie Preprocessor took 32.94ms. Allocated memory is still 125.8MB. Free memory was 67.8MB in the beginning and 66.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:08:44,128 INFO L158 Benchmark]: RCFGBuilder took 430.37ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 90.5MB in the end (delta: -24.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2023-11-06 22:08:44,128 INFO L158 Benchmark]: TraceAbstraction took 1626.11ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 89.7MB in the beginning and 98.6MB in the end (delta: -8.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2023-11-06 22:08:44,129 INFO L158 Benchmark]: Witness Printer took 7.60ms. Allocated memory is still 165.7MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:08:44,131 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.30ms. Allocated memory is still 96.5MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.02ms. Allocated memory is still 125.8MB. Free memory was 82.4MB in the beginning and 70.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.38ms. Allocated memory is still 125.8MB. Free memory was 70.2MB in the beginning and 67.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.94ms. Allocated memory is still 125.8MB. Free memory was 67.8MB in the beginning and 66.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.37ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 90.5MB in the end (delta: -24.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1626.11ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 89.7MB in the beginning and 98.6MB in the end (delta: -8.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Witness Printer took 7.60ms. Allocated memory is still 165.7MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_5 = 0; [L24] unsigned char var_1_6 = 0; [L25] unsigned char var_1_7 = 0; [L26] signed short int var_1_8 = 4; [L27] float var_1_10 = 16.4; [L28] signed short int var_1_11 = -25; [L29] float var_1_13 = 128.1; [L30] float var_1_14 = 31.4; [L31] unsigned char var_1_15 = 2; [L32] unsigned char var_1_16 = 0; [L33] signed long int var_1_17 = 5; [L34] float last_1_var_1_13 = 128.1; [L35] signed long int last_1_var_1_17 = 5; VAL [isInitial=0, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L86] isInitial = 1 [L87] FCALL initially() [L88] COND TRUE 1 [L89] CALL updateLastVariables() [L78] last_1_var_1_13 = var_1_13 [L79] last_1_var_1_17 = var_1_17 VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L89] RET updateLastVariables() [L90] CALL updateVariables() [L60] var_1_5 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=4] [L61] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_6=0, var_1_7=0, var_1_8=4] [L62] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L62] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L63] var_1_6 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L65] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L65] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L66] var_1_7 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L68] CALL assume_abort_if_not(var_1_7 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L68] RET assume_abort_if_not(var_1_7 <= 0) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=82/5, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L69] var_1_10 = __VERIFIER_nondet_float() [L70] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L70] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=157/5, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L71] var_1_14 = __VERIFIER_nondet_float() [L72] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L72] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=0, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L73] var_1_16 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=254, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=254, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L74] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=254, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L75] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=254, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=254, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L75] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=254, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L90] RET updateVariables() [L91] CALL step() [L39] COND FALSE !(\read(var_1_5)) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=-25, var_1_13=1281/10, var_1_14=517, var_1_15=2, var_1_16=254, var_1_17=5, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L44] var_1_17 = var_1_8 [L45] var_1_13 = var_1_14 [L46] var_1_15 = var_1_16 [L47] signed long int stepLocal_0 = (- 5) + var_1_17; VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, stepLocal_0=-1, var_1_10=518, var_1_11=-25, var_1_13=517, var_1_14=517, var_1_15=254, var_1_16=254, var_1_17=4, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L48] COND FALSE !(stepLocal_0 >= var_1_15) [L51] var_1_1 = ((var_1_5 && var_1_6) || var_1_7) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, stepLocal_0=-1, var_1_10=518, var_1_11=-25, var_1_13=517, var_1_14=517, var_1_15=254, var_1_16=254, var_1_17=4, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L53] COND TRUE var_1_10 >= 500.875f [L54] var_1_11 = ((((((((((((-50) < 0 ) ? -(-50) : (-50)))) > (var_1_8)) ? (((((-50) < 0 ) ? -(-50) : (-50)))) : (var_1_8)))) < (var_1_15)) ? (((((((((-50) < 0 ) ? -(-50) : (-50)))) > (var_1_8)) ? (((((-50) < 0 ) ? -(-50) : (-50)))) : (var_1_8)))) : (var_1_15))) VAL [isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, stepLocal_0=-1, var_1_10=518, var_1_11=50, var_1_13=517, var_1_14=517, var_1_15=254, var_1_16=254, var_1_17=4, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L91] RET step() [L92] CALL, EXPR property() [L82-L83] return ((((((((- 5) + var_1_17) >= var_1_15) ? (var_1_1 == ((unsigned char) (! var_1_5))) : (var_1_1 == ((unsigned char) ((var_1_5 && var_1_6) || var_1_7)))) && (var_1_5 ? ((0.4f > ((((last_1_var_1_13) < ((var_1_10 - 1.375f))) ? (last_1_var_1_13) : ((var_1_10 - 1.375f))))) ? (var_1_8 == ((signed short int) last_1_var_1_17)) : 1) : 1)) && ((var_1_10 >= 500.875f) ? (var_1_11 == ((signed short int) ((((((((((((-50) < 0 ) ? -(-50) : (-50)))) > (var_1_8)) ? (((((-50) < 0 ) ? -(-50) : (-50)))) : (var_1_8)))) < (var_1_15)) ? (((((((((-50) < 0 ) ? -(-50) : (-50)))) > (var_1_8)) ? (((((-50) < 0 ) ? -(-50) : (-50)))) : (var_1_8)))) : (var_1_15))))) : (var_1_11 == ((signed short int) var_1_15)))) && (var_1_13 == ((float) var_1_14))) && (var_1_15 == ((unsigned char) var_1_16))) && (var_1_17 == ((signed long int) var_1_8)) ; VAL [\result=0, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=50, var_1_13=517, var_1_14=517, var_1_15=254, var_1_16=254, var_1_17=4, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=50, var_1_13=517, var_1_14=517, var_1_15=254, var_1_16=254, var_1_17=4, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=1281/10, last_1_var_1_17=5, var_1_10=518, var_1_11=50, var_1_13=517, var_1_14=517, var_1_15=254, var_1_16=254, var_1_17=4, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 180 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 94 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 360/360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:08:44,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 cde8d0b7ae63daaf73229c98a276eed51f74faeadb0d74d5645e79b969a982b1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:08:46,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:08:46,876 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:08:46,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:08:46,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:08:46,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:08:46,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:08:46,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:08:46,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:08:46,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:08:46,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:08:46,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:08:46,916 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:08:46,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:08:46,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:08:46,918 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:08:46,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:08:46,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:08:46,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:08:46,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:08:46,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:08:46,921 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:08:46,922 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:08:46,922 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:08:46,923 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:08:46,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:08:46,924 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:08:46,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:08:46,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:08:46,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:08:46,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:46,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:08:46,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:08:46,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:08:46,927 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:08:46,927 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:08:46,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:08:46,928 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:08:46,928 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:08:46,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:08:46,929 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:08:46,930 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:08:46,930 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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cde8d0b7ae63daaf73229c98a276eed51f74faeadb0d74d5645e79b969a982b1 [2023-11-06 22:08:47,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:08:47,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:08:47,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:08:47,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:08:47,337 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:08:47,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i [2023-11-06 22:08:50,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:08:50,769 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:08:50,770 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i [2023-11-06 22:08:50,779 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/data/5676dd0cc/84f6eeffc29d4ce69c72d92477fcf802/FLAG5e5f383bd [2023-11-06 22:08:50,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/data/5676dd0cc/84f6eeffc29d4ce69c72d92477fcf802 [2023-11-06 22:08:50,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:08:50,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:08:50,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:50,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:08:50,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:08:50,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:50" (1/1) ... [2023-11-06 22:08:50,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a7ac2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:50, skipping insertion in model container [2023-11-06 22:08:50,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:08:50" (1/1) ... [2023-11-06 22:08:50,837 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:08:50,979 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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i[915,928] [2023-11-06 22:08:51,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:51,043 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:08:51,056 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_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-76.i[915,928] [2023-11-06 22:08:51,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:08:51,099 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:08:51,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51 WrapperNode [2023-11-06 22:08:51,100 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:08:51,101 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:51,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:08:51,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:08:51,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,170 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2023-11-06 22:08:51,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:08:51,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:08:51,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:08:51,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:08:51,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:08:51,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:08:51,249 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:08:51,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:08:51,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (1/1) ... [2023-11-06 22:08:51,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:08:51,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:08:51,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:08:51,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:08:51,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:08:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:08:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:08:51,363 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:08:51,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:08:51,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:08:51,488 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:08:51,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:08:52,022 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:08:52,029 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:08:52,029 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:08:52,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:52 BoogieIcfgContainer [2023-11-06 22:08:52,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:08:52,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:08:52,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:08:52,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:08:52,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:08:50" (1/3) ... [2023-11-06 22:08:52,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3089d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:52, skipping insertion in model container [2023-11-06 22:08:52,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:08:51" (2/3) ... [2023-11-06 22:08:52,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3089d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:08:52, skipping insertion in model container [2023-11-06 22:08:52,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:08:52" (3/3) ... [2023-11-06 22:08:52,041 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-76.i [2023-11-06 22:08:52,061 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:08:52,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:08:52,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:08:52,120 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;@a2eea4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:08:52,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:08:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:08:52,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:08:52,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:52,137 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:52,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:52,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:52,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1176229072, now seen corresponding path program 1 times [2023-11-06 22:08:52,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:08:52,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474770824] [2023-11-06 22:08:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:52,159 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 22:08:52,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:08:52,168 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:52,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:52,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:08:52,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:08:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-06 22:08:52,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:08:52,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:08:52,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474770824] [2023-11-06 22:08:52,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474770824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:52,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:52,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:08:52,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168877690] [2023-11-06 22:08:52,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:52,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:08:52,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:08:52,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:08:52,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:08:52,619 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:08:52,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:52,661 INFO L93 Difference]: Finished difference Result 73 states and 116 transitions. [2023-11-06 22:08:52,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:08:52,663 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2023-11-06 22:08:52,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:52,671 INFO L225 Difference]: With dead ends: 73 [2023-11-06 22:08:52,672 INFO L226 Difference]: Without dead ends: 36 [2023-11-06 22:08:52,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 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 22:08:52,682 INFO L413 NwaCegarLoop]: 49 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, 49 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 22:08:52,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:08:52,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-06 22:08:52,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-06 22:08:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:08:52,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2023-11-06 22:08:52,737 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 69 [2023-11-06 22:08:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:52,738 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2023-11-06 22:08:52,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:08:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2023-11-06 22:08:52,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:08:52,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:52,768 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:52,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:52,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:52,969 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:52,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:52,970 INFO L85 PathProgramCache]: Analyzing trace with hash -949125036, now seen corresponding path program 1 times [2023-11-06 22:08:52,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:08:52,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195474231] [2023-11-06 22:08:52,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:52,972 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 22:08:52,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:08:52,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:52,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:53,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:08:53,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:08:53,541 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:08:53,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:08:53,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:08:53,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195474231] [2023-11-06 22:08:53,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195474231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:53,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:53,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:08:53,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753858332] [2023-11-06 22:08:53,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:53,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:08:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:08:53,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:08:53,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:08:53,546 INFO L87 Difference]: Start difference. First operand 36 states and 49 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:08:53,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:53,791 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2023-11-06 22:08:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:08:53,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2023-11-06 22:08:53,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:53,802 INFO L225 Difference]: With dead ends: 102 [2023-11-06 22:08:53,802 INFO L226 Difference]: Without dead ends: 69 [2023-11-06 22:08:53,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:08:53,804 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 15 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:08:53,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 131 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:08:53,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-06 22:08:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2023-11-06 22:08:53,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 44 states have internal predecessors, (53), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-06 22:08:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2023-11-06 22:08:53,838 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 69 [2023-11-06 22:08:53,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:53,839 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2023-11-06 22:08:53,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:08:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2023-11-06 22:08:53,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:08:53,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:53,841 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:53,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:54,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:54,057 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:54,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:54,058 INFO L85 PathProgramCache]: Analyzing trace with hash -891866734, now seen corresponding path program 1 times [2023-11-06 22:08:54,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:08:54,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367555513] [2023-11-06 22:08:54,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:54,059 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 22:08:54,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:08:54,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:54,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c9d8fe0-12d3-44bb-9c4f-185f9c5c71c2/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 22:08:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:54,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-06 22:08:54,352 INFO L285 TraceCheckSpWp]: Computing forward predicates...