./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cca63c3e90b93de3596db2b592e4b15f16483114c2aa2d051423728d02c52eb6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:18:47,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:18:48,057 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:18:48,064 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:18:48,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:18:48,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:18:48,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:18:48,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:18:48,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:18:48,094 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:18:48,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:18:48,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:18:48,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:18:48,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:18:48,097 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:18:48,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:18:48,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:18:48,101 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:18:48,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:18:48,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:18:48,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:18:48,103 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:18:48,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:18:48,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:18:48,105 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:18:48,106 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:18:48,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:18:48,106 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:18:48,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:18:48,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:18:48,107 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:18:48,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:18:48,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:48,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:18:48,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:18:48,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:18:48,110 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:18:48,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:18:48,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:18:48,111 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:18:48,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:18:48,112 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:18:48,112 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_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cca63c3e90b93de3596db2b592e4b15f16483114c2aa2d051423728d02c52eb6 [2024-10-31 22:18:48,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:18:48,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:18:48,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:18:48,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:18:48,453 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:18:48,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i Unable to find full path for "g++" [2024-10-31 22:18:50,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:18:50,726 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:18:50,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i [2024-10-31 22:18:50,738 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/data/2754b8e4b/07ce5a1e8c554a5691f32bf2a09cc618/FLAG80710b6dc [2024-10-31 22:18:51,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/data/2754b8e4b/07ce5a1e8c554a5691f32bf2a09cc618 [2024-10-31 22:18:51,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:18:51,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:18:51,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:51,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:18:51,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:18:51,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db6c3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51, skipping insertion in model container [2024-10-31 22:18:51,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:18:51,352 WARN L251 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_86dad753-9394-468d-a652-96a9c751848c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i[915,928] [2024-10-31 22:18:51,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:51,421 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:18:51,433 WARN L251 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_86dad753-9394-468d-a652-96a9c751848c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i[915,928] [2024-10-31 22:18:51,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:51,484 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:18:51,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51 WrapperNode [2024-10-31 22:18:51,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:51,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:51,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:18:51,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:18:51,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,540 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-10-31 22:18:51,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:51,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:18:51,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:18:51,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:18:51,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,564 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,581 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:18:51,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,596 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:18:51,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:18:51,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:18:51,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:18:51,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (1/1) ... [2024-10-31 22:18:51,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:51,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:51,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:51,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:18:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:18:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:18:51,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:18:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:18:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:18:51,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:18:51,791 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:18:51,795 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:18:52,210 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-31 22:18:52,211 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:18:52,230 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:18:52,230 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:18:52,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:52 BoogieIcfgContainer [2024-10-31 22:18:52,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:18:52,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:18:52,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:18:52,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:18:52,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:18:51" (1/3) ... [2024-10-31 22:18:52,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b29b0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:52, skipping insertion in model container [2024-10-31 22:18:52,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:51" (2/3) ... [2024-10-31 22:18:52,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b29b0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:52, skipping insertion in model container [2024-10-31 22:18:52,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:52" (3/3) ... [2024-10-31 22:18:52,242 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-54.i [2024-10-31 22:18:52,262 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:18:52,263 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:18:52,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:18:52,348 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@63b00dd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:18:52,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:18:52,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 29 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:18:52,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:18:52,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:52,366 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:52,368 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:52,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:52,374 INFO L85 PathProgramCache]: Analyzing trace with hash 345523466, now seen corresponding path program 1 times [2024-10-31 22:18:52,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:52,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281520956] [2024-10-31 22:18:52,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:52,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:18:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:18:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:18:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:18:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:18:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:18:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:18:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:18:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-31 22:18:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-31 22:18:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:18:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:18:52,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:52,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281520956] [2024-10-31 22:18:52,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281520956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:52,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:52,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:52,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741613811] [2024-10-31 22:18:52,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:52,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:18:52,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:52,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:18:52,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:18:52,812 INFO L87 Difference]: Start difference. First operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 29 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-31 22:18:52,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:52,850 INFO L93 Difference]: Finished difference Result 77 states and 123 transitions. [2024-10-31 22:18:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:18:52,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2024-10-31 22:18:52,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:52,860 INFO L225 Difference]: With dead ends: 77 [2024-10-31 22:18:52,860 INFO L226 Difference]: Without dead ends: 38 [2024-10-31 22:18:52,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:18:52,870 INFO L432 NwaCegarLoop]: 51 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, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:52,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:18:52,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-10-31 22:18:52,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-10-31 22:18:52,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:18:52,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-10-31 22:18:52,929 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 75 [2024-10-31 22:18:52,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:52,930 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-10-31 22:18:52,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-31 22:18:52,930 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-10-31 22:18:52,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:18:52,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:52,934 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:52,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:18:52,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:52,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:52,936 INFO L85 PathProgramCache]: Analyzing trace with hash -812801714, now seen corresponding path program 1 times [2024-10-31 22:18:52,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:52,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009787950] [2024-10-31 22:18:52,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:52,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:18:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:18:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-31 22:18:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:18:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:18:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:18:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:18:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-31 22:18:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-31 22:18:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-31 22:18:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:18:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:18:53,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:53,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009787950] [2024-10-31 22:18:53,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009787950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:53,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:53,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:18:53,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066124740] [2024-10-31 22:18:53,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:53,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:18:53,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:53,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:18:53,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:18:53,246 INFO L87 Difference]: Start difference. First operand 38 states and 51 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-31 22:18:53,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:18:53,305 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2024-10-31 22:18:53,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:18:53,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-10-31 22:18:53,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:18:53,309 INFO L225 Difference]: With dead ends: 75 [2024-10-31 22:18:53,309 INFO L226 Difference]: Without dead ends: 40 [2024-10-31 22:18:53,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:18:53,311 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 14 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:18:53,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 125 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:18:53,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-31 22:18:53,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2024-10-31 22:18:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:18:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2024-10-31 22:18:53,330 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 75 [2024-10-31 22:18:53,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:18:53,332 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2024-10-31 22:18:53,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-31 22:18:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2024-10-31 22:18:53,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:18:53,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:18:53,338 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:53,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:18:53,339 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:18:53,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:53,339 INFO L85 PathProgramCache]: Analyzing trace with hash 962205648, now seen corresponding path program 1 times [2024-10-31 22:18:53,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:53,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620678431] [2024-10-31 22:18:53,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:53,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:53,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:53,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:53,651 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:18:53,653 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:18:53,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:18:53,659 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-31 22:18:53,745 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:18:53,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:18:53 BoogieIcfgContainer [2024-10-31 22:18:53,751 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:18:53,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:18:53,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:18:53,752 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:18:53,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:52" (3/4) ... [2024-10-31 22:18:53,756 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:18:53,757 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:18:53,758 INFO L158 Benchmark]: Toolchain (without parser) took 2686.86ms. Allocated memory is still 153.1MB. Free memory was 122.9MB in the beginning and 61.2MB in the end (delta: 61.7MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2024-10-31 22:18:53,760 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory was 92.3MB in the beginning and 92.2MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:18:53,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.33ms. Allocated memory is still 153.1MB. Free memory was 122.3MB in the beginning and 119.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:18:53,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.47ms. Allocated memory is still 153.1MB. Free memory was 119.8MB in the beginning and 117.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:18:53,761 INFO L158 Benchmark]: Boogie Preprocessor took 66.42ms. Allocated memory is still 153.1MB. Free memory was 117.2MB in the beginning and 112.9MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:18:53,762 INFO L158 Benchmark]: RCFGBuilder took 622.25ms. Allocated memory is still 153.1MB. Free memory was 112.9MB in the beginning and 96.8MB in the end (delta: 16.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:18:53,765 INFO L158 Benchmark]: TraceAbstraction took 1518.36ms. Allocated memory is still 153.1MB. Free memory was 96.2MB in the beginning and 62.1MB in the end (delta: 34.1MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2024-10-31 22:18:53,766 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 153.1MB. Free memory was 62.1MB in the beginning and 61.2MB in the end (delta: 907.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:18:53,768 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory was 92.3MB in the beginning and 92.2MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.33ms. Allocated memory is still 153.1MB. Free memory was 122.3MB in the beginning and 119.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.47ms. Allocated memory is still 153.1MB. Free memory was 119.8MB in the beginning and 117.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.42ms. Allocated memory is still 153.1MB. Free memory was 117.2MB in the beginning and 112.9MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 622.25ms. Allocated memory is still 153.1MB. Free memory was 112.9MB in the beginning and 96.8MB in the end (delta: 16.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1518.36ms. Allocated memory is still 153.1MB. Free memory was 96.2MB in the beginning and 62.1MB in the end (delta: 34.1MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 153.1MB. Free memory was 62.1MB in the beginning and 61.2MB in the end (delta: 907.7kB). 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 81. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 16; [L23] unsigned char var_1_3 = 10; [L24] unsigned char var_1_4 = 0; [L25] unsigned char var_1_6 = 1; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned long int var_1_9 = 5; [L29] unsigned long int var_1_10 = 3126062476; [L30] unsigned short int var_1_13 = 10; [L31] signed long int var_1_14 = 128; [L32] float var_1_15 = 4.2; [L33] float var_1_16 = 5.1; VAL [isInitial=0, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=10, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] FCALL updateLastVariables() [L89] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L61] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L62] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L62] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L63] var_1_6 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_7=0, var_1_8=0, var_1_9=5] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_7=0, var_1_8=0, var_1_9=5] [L65] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L65] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L66] var_1_7 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_8=0, var_1_9=5] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_8=0, var_1_9=5] [L68] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L68] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L69] var_1_8 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_9=5] [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_9=5] [L71] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L71] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L72] var_1_10 = __VERIFIER_nondet_ulong() [L73] CALL assume_abort_if_not(var_1_10 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L73] RET assume_abort_if_not(var_1_10 >= 2147483647) VAL [isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L74] CALL assume_abort_if_not(var_1_10 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L74] RET assume_abort_if_not(var_1_10 <= 4294967294) VAL [isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L75] var_1_16 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L76] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L89] RET updateVariables() [L90] CALL step() [L37] var_1_13 = var_1_3 [L38] var_1_14 = var_1_3 [L39] var_1_15 = var_1_16 [L40] unsigned short int stepLocal_0 = var_1_13; VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L41] COND FALSE !(-4 >= stepLocal_0) VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L44] signed long int stepLocal_2 = var_1_14; VAL [isInitial=1, stepLocal_2=254, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L45] COND FALSE !(var_1_3 < stepLocal_2) VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L48] unsigned long int stepLocal_1 = 8 * var_1_9; VAL [isInitial=1, stepLocal_1=40, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L49] COND FALSE !(stepLocal_1 == ((((10) > (var_1_9)) ? (10) : (var_1_9)))) [L56] var_1_4 = var_1_8 VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L90] RET step() [L91] CALL, EXPR property() [L81-L82] return ((((((-4 >= var_1_13) ? (var_1_1 == ((unsigned char) ((((var_1_3) < (((((1) < 0 ) ? -(1) : (1))))) ? (var_1_3) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * var_1_9) == ((((10) > (var_1_9)) ? (10) : (var_1_9)))) ? (var_1_6 ? (var_1_4 == ((unsigned char) (var_1_7 && var_1_8))) : (var_1_4 == ((unsigned char) var_1_8))) : (var_1_4 == ((unsigned char) var_1_8)))) && ((var_1_3 < var_1_14) ? (var_1_9 == ((unsigned long int) (((((3851651024u - var_1_3)) < ((((((var_1_10 - var_1_13)) > ((var_1_1 + var_1_1))) ? ((var_1_10 - var_1_13)) : ((var_1_1 + var_1_1)))))) ? ((3851651024u - var_1_3)) : ((((((var_1_10 - var_1_13)) > ((var_1_1 + var_1_1))) ? ((var_1_10 - var_1_13)) : ((var_1_1 + var_1_1))))))))) : 1)) && (var_1_13 == ((unsigned short int) var_1_3))) && (var_1_14 == ((signed long int) var_1_3))) && (var_1_15 == ((float) var_1_16)) ; VAL [\result=0, isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L19] reach_error() VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 176 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 100 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, 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, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 440/440 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-31 22:18:53,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cca63c3e90b93de3596db2b592e4b15f16483114c2aa2d051423728d02c52eb6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:18:56,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:18:56,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-31 22:18:56,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:18:56,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:18:56,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:18:56,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:18:56,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:18:56,797 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:18:56,799 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:18:56,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:18:56,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:18:56,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:18:56,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:18:56,801 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:18:56,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:18:56,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:18:56,806 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:18:56,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:18:56,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:18:56,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:18:56,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:18:56,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:18:56,807 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:18:56,808 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:18:56,808 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:18:56,808 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:18:56,808 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:18:56,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:18:56,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:18:56,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:18:56,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:18:56,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:18:56,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:18:56,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:56,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:18:56,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:18:56,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:18:56,822 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:18:56,822 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:18:56,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:18:56,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:18:56,823 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:18:56,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:18:56,824 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:18:56,824 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_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cca63c3e90b93de3596db2b592e4b15f16483114c2aa2d051423728d02c52eb6 [2024-10-31 22:18:57,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:18:57,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:18:57,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:18:57,269 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:18:57,271 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:18:57,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i Unable to find full path for "g++" [2024-10-31 22:18:59,720 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:19:00,065 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:19:00,066 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i [2024-10-31 22:19:00,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/data/3d422cccf/78f2faeba2224b258fbf2bcc181ed412/FLAG960db4b67 [2024-10-31 22:19:00,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/data/3d422cccf/78f2faeba2224b258fbf2bcc181ed412 [2024-10-31 22:19:00,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:19:00,390 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:19:00,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:00,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:19:00,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:19:00,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3efbaa50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00, skipping insertion in model container [2024-10-31 22:19:00,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:19:00,648 WARN L251 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_86dad753-9394-468d-a652-96a9c751848c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i[915,928] [2024-10-31 22:19:00,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:00,759 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:19:00,781 WARN L251 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_86dad753-9394-468d-a652-96a9c751848c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-54.i[915,928] [2024-10-31 22:19:00,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:00,840 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:19:00,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00 WrapperNode [2024-10-31 22:19:00,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:00,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:00,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:19:00,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:19:00,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,886 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-10-31 22:19:00,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:00,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:19:00,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:19:00,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:19:00,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,940 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:19:00,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,956 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:19:00,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:19:00,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:19:00,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:19:00,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (1/1) ... [2024-10-31 22:19:00,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:01,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:01,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:01,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:19:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:19:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:19:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:19:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:19:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:19:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:19:01,160 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:19:01,162 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:19:01,429 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-31 22:19:01,430 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:19:01,442 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:19:01,442 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:19:01,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:01 BoogieIcfgContainer [2024-10-31 22:19:01,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:19:01,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:19:01,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:19:01,449 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:19:01,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:19:00" (1/3) ... [2024-10-31 22:19:01,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b448cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:01, skipping insertion in model container [2024-10-31 22:19:01,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:00" (2/3) ... [2024-10-31 22:19:01,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b448cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:01, skipping insertion in model container [2024-10-31 22:19:01,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:01" (3/3) ... [2024-10-31 22:19:01,454 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-54.i [2024-10-31 22:19:01,477 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:19:01,477 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:19:01,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:19:01,588 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50ca203d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:19:01,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:19:01,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 29 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:19:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:19:01,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:01,615 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:01,616 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:19:01,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:01,626 INFO L85 PathProgramCache]: Analyzing trace with hash 345523466, now seen corresponding path program 1 times [2024-10-31 22:19:01,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:19:01,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039528628] [2024-10-31 22:19:01,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:01,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:19:01,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:19:01,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:19:01,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-31 22:19:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:01,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-31 22:19:01,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:02,038 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-10-31 22:19:02,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:19:02,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:19:02,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039528628] [2024-10-31 22:19:02,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039528628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:02,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:02,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:19:02,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882268829] [2024-10-31 22:19:02,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:02,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:19:02,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:19:02,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:19:02,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:19:02,086 INFO L87 Difference]: Start difference. First operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 29 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-31 22:19:02,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:02,149 INFO L93 Difference]: Finished difference Result 77 states and 123 transitions. [2024-10-31 22:19:02,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:19:02,155 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2024-10-31 22:19:02,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:02,171 INFO L225 Difference]: With dead ends: 77 [2024-10-31 22:19:02,171 INFO L226 Difference]: Without dead ends: 38 [2024-10-31 22:19:02,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:19:02,186 INFO L432 NwaCegarLoop]: 51 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, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:19:02,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:19:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-10-31 22:19:02,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-10-31 22:19:02,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:19:02,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-10-31 22:19:02,260 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 75 [2024-10-31 22:19:02,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:02,261 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-10-31 22:19:02,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-31 22:19:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-10-31 22:19:02,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:19:02,266 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:02,267 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:02,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-31 22:19:02,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:19:02,472 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:19:02,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:02,473 INFO L85 PathProgramCache]: Analyzing trace with hash -812801714, now seen corresponding path program 1 times [2024-10-31 22:19:02,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:19:02,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863590363] [2024-10-31 22:19:02,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:02,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:19:02,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:19:02,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:19:02,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-31 22:19:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:02,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:19:02,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:02,870 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:19:02,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:19:02,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:19:02,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863590363] [2024-10-31 22:19:02,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863590363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:02,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:02,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:19:02,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953954499] [2024-10-31 22:19:02,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:02,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:19:02,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:19:02,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:19:02,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:19:02,877 INFO L87 Difference]: Start difference. First operand 38 states and 51 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-31 22:19:02,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:02,959 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2024-10-31 22:19:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:19:02,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-10-31 22:19:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:19:02,964 INFO L225 Difference]: With dead ends: 75 [2024-10-31 22:19:02,965 INFO L226 Difference]: Without dead ends: 40 [2024-10-31 22:19:02,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:19:02,970 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 14 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:19:02,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 123 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:19:02,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-31 22:19:02,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2024-10-31 22:19:02,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 22:19:02,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2024-10-31 22:19:02,988 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 75 [2024-10-31 22:19:02,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:19:02,990 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2024-10-31 22:19:02,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-31 22:19:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2024-10-31 22:19:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:19:02,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:19:02,994 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:03,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:19:03,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:19:03,199 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:19:03,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:03,201 INFO L85 PathProgramCache]: Analyzing trace with hash 962205648, now seen corresponding path program 1 times [2024-10-31 22:19:03,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:19:03,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006414598] [2024-10-31 22:19:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:03,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:19:03,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:19:03,205 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:19:03,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86dad753-9394-468d-a652-96a9c751848c/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:19:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:03,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:19:03,370 INFO L278 TraceCheckSpWp]: Computing forward predicates...