./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme --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 f78f07977a6a6c060ce47508f319b35375a64382f2792ef417cdb466597e7230 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:29,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:29,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:00:29,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:29,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:29,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:29,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:29,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:29,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:29,318 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:29,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:29,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:29,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:29,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:29,323 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:29,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:29,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:29,324 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:00:29,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:29,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:00:29,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:29,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:29,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:29,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:29,328 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:00:29,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:29,329 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:29,330 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:29,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:29,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:29,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:29,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:29,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:29,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:29,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:29,334 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:29,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:29,335 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:29,335 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:29,335 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:29,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:29,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:29,337 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_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f78f07977a6a6c060ce47508f319b35375a64382f2792ef417cdb466597e7230 [2023-11-26 12:00:29,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:29,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:29,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:29,697 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:29,697 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:29,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i [2023-11-26 12:00:32,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:33,078 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:33,079 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i [2023-11-26 12:00:33,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/data/d9b03dfcb/ddffafcb91da4f00958db9fa090d838f/FLAG116405a94 [2023-11-26 12:00:33,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/data/d9b03dfcb/ddffafcb91da4f00958db9fa090d838f [2023-11-26 12:00:33,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:33,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:33,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:33,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:33,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:33,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283d5f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33, skipping insertion in model container [2023-11-26 12:00:33,123 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,169 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:33,350 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i[916,929] [2023-11-26 12:00:33,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:33,458 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:33,470 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i[916,929] [2023-11-26 12:00:33,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:33,547 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:33,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33 WrapperNode [2023-11-26 12:00:33,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:33,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:33,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:33,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:33,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,663 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 184 [2023-11-26 12:00:33,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:33,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:33,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:33,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:33,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,678 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,735 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]. [2023-11-26 12:00:33,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:33,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:33,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:33,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:33,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (1/1) ... [2023-11-26 12:00:33,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:33,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:33,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:33,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:00:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:00:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:33,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:34,027 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:34,029 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:34,576 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:34,664 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:34,665 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:00:34,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:34 BoogieIcfgContainer [2023-11-26 12:00:34,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:34,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:34,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:34,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:34,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:33" (1/3) ... [2023-11-26 12:00:34,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c016399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:34, skipping insertion in model container [2023-11-26 12:00:34,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:33" (2/3) ... [2023-11-26 12:00:34,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c016399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:34, skipping insertion in model container [2023-11-26 12:00:34,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:34" (3/3) ... [2023-11-26 12:00:34,679 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-97.i [2023-11-26 12:00:34,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:34,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:00:34,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:34,785 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@8467ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:34,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:00:34,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 49 states have internal predecessors, (73), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 12:00:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-26 12:00:34,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:34,816 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:34,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:34,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:34,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1821303811, now seen corresponding path program 1 times [2023-11-26 12:00:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:34,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588432596] [2023-11-26 12:00:34,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:34,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:35,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:35,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588432596] [2023-11-26 12:00:35,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 12:00:35,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104843959] [2023-11-26 12:00:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:35,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:35,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:35,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:35,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:00:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:35,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 12:00:35,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2023-11-26 12:00:35,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:35,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104843959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:35,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:35,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:35,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960902808] [2023-11-26 12:00:35,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:35,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:00:35,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:35,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:00:35,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:00:35,621 INFO L87 Difference]: Start difference. First operand has 75 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 49 states have internal predecessors, (73), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-26 12:00:35,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:35,670 INFO L93 Difference]: Finished difference Result 147 states and 264 transitions. [2023-11-26 12:00:35,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:00:35,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 155 [2023-11-26 12:00:35,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:35,683 INFO L225 Difference]: With dead ends: 147 [2023-11-26 12:00:35,684 INFO L226 Difference]: Without dead ends: 73 [2023-11-26 12:00:35,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:00:35,692 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:35,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:35,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-26 12:00:35,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-26 12:00:35,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 12:00:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 116 transitions. [2023-11-26 12:00:35,749 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 116 transitions. Word has length 155 [2023-11-26 12:00:35,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:35,750 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 116 transitions. [2023-11-26 12:00:35,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-26 12:00:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 116 transitions. [2023-11-26 12:00:35,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-26 12:00:35,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:35,756 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:35,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 12:00:35,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 12:00:35,964 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:35,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:35,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1769755653, now seen corresponding path program 1 times [2023-11-26 12:00:35,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:35,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539163856] [2023-11-26 12:00:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:35,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:36,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:00:36,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980835970] [2023-11-26 12:00:36,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:36,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:36,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:36,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:36,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:00:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:36,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:36,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-26 12:00:36,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:36,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:36,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539163856] [2023-11-26 12:00:36,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:00:36,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980835970] [2023-11-26 12:00:36,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980835970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:36,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:36,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:36,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662874058] [2023-11-26 12:00:36,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:36,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:36,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:36,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:36,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:36,399 INFO L87 Difference]: Start difference. First operand 73 states and 116 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-26 12:00:36,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:36,523 INFO L93 Difference]: Finished difference Result 208 states and 330 transitions. [2023-11-26 12:00:36,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:36,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 155 [2023-11-26 12:00:36,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:36,529 INFO L225 Difference]: With dead ends: 208 [2023-11-26 12:00:36,529 INFO L226 Difference]: Without dead ends: 136 [2023-11-26 12:00:36,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:36,532 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 94 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:36,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 289 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:36,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-26 12:00:36,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 83. [2023-11-26 12:00:36,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 57 states have internal predecessors, (84), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 12:00:36,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 132 transitions. [2023-11-26 12:00:36,560 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 132 transitions. Word has length 155 [2023-11-26 12:00:36,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:36,563 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 132 transitions. [2023-11-26 12:00:36,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-26 12:00:36,564 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 132 transitions. [2023-11-26 12:00:36,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-26 12:00:36,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:36,574 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:36,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:36,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-26 12:00:36,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:36,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:36,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1761712083, now seen corresponding path program 1 times [2023-11-26 12:00:36,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:36,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765891230] [2023-11-26 12:00:36,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:36,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:36,833 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:00:36,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250006339] [2023-11-26 12:00:36,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:36,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:36,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:36,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:36,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:00:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:37,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-26 12:00:37,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 474 proven. 189 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2023-11-26 12:00:38,986 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:40,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:40,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765891230] [2023-11-26 12:00:40,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:00:40,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250006339] [2023-11-26 12:00:40,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250006339] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:40,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:00:40,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-26 12:00:40,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179174534] [2023-11-26 12:00:40,342 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:40,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 12:00:40,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:40,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 12:00:40,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2023-11-26 12:00:40,346 INFO L87 Difference]: Start difference. First operand 83 states and 132 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 17 states have internal predecessors, (56), 5 states have call successors, (24), 5 states have call predecessors, (24), 7 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-26 12:00:42,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:42,636 INFO L93 Difference]: Finished difference Result 342 states and 492 transitions. [2023-11-26 12:00:42,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-11-26 12:00:42,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 17 states have internal predecessors, (56), 5 states have call successors, (24), 5 states have call predecessors, (24), 7 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 155 [2023-11-26 12:00:42,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:42,642 INFO L225 Difference]: With dead ends: 342 [2023-11-26 12:00:42,642 INFO L226 Difference]: Without dead ends: 260 [2023-11-26 12:00:42,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 246 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1318 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1269, Invalid=3843, Unknown=0, NotChecked=0, Total=5112 [2023-11-26 12:00:42,648 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 760 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:42,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 441 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 12:00:42,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-26 12:00:42,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 115. [2023-11-26 12:00:42,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 84 states have internal predecessors, (117), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 12:00:42,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 165 transitions. [2023-11-26 12:00:42,697 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 165 transitions. Word has length 155 [2023-11-26 12:00:42,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:42,699 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 165 transitions. [2023-11-26 12:00:42,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 17 states have internal predecessors, (56), 5 states have call successors, (24), 5 states have call predecessors, (24), 7 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-26 12:00:42,700 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 165 transitions. [2023-11-26 12:00:42,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-26 12:00:42,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:42,703 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:42,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:42,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:42,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:42,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2094702573, now seen corresponding path program 1 times [2023-11-26 12:00:42,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507908626] [2023-11-26 12:00:42,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:00:42,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163851369] [2023-11-26 12:00:42,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:42,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:42,989 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:43,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:00:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:43,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 12:00:43,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 365 proven. 12 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2023-11-26 12:00:43,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 57 proven. 12 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-11-26 12:00:43,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:43,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507908626] [2023-11-26 12:00:43,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:00:43,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163851369] [2023-11-26 12:00:43,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163851369] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:43,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:00:43,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-11-26 12:00:43,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367569627] [2023-11-26 12:00:43,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:43,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:43,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:43,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:43,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:43,469 INFO L87 Difference]: Start difference. First operand 115 states and 165 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-26 12:00:44,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:44,010 INFO L93 Difference]: Finished difference Result 305 states and 414 transitions. [2023-11-26 12:00:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 12:00:44,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 156 [2023-11-26 12:00:44,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:44,014 INFO L225 Difference]: With dead ends: 305 [2023-11-26 12:00:44,014 INFO L226 Difference]: Without dead ends: 191 [2023-11-26 12:00:44,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 303 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-11-26 12:00:44,016 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 184 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:44,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 271 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:00:44,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-26 12:00:44,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 103. [2023-11-26 12:00:44,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 12:00:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 139 transitions. [2023-11-26 12:00:44,052 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 139 transitions. Word has length 156 [2023-11-26 12:00:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:44,053 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 139 transitions. [2023-11-26 12:00:44,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-26 12:00:44,054 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 139 transitions. [2023-11-26 12:00:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-26 12:00:44,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:44,056 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:44,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:44,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:44,257 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:44,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2086659003, now seen corresponding path program 1 times [2023-11-26 12:00:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:44,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735885257] [2023-11-26 12:00:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:44,328 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:00:44,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [516331438] [2023-11-26 12:00:44,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:44,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,330 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:00:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:44,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-26 12:00:44,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 528 proven. 105 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2023-11-26 12:00:45,616 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:25,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 139 [2023-11-26 12:01:25,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:25,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735885257] [2023-11-26 12:01:25,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:01:25,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516331438] [2023-11-26 12:01:25,504 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-26 12:01:25,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:25,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:25,705 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:915) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:789) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:377) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:579) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 45 more [2023-11-26 12:01:25,708 INFO L158 Benchmark]: Toolchain (without parser) took 52597.78ms. Allocated memory was 169.9MB in the beginning and 257.9MB in the end (delta: 88.1MB). Free memory was 125.9MB in the beginning and 169.2MB in the end (delta: -43.3MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2023-11-26 12:01:25,708 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:01:25,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.89ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 109.6MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 12:01:25,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.69ms. Allocated memory is still 169.9MB. Free memory was 109.2MB in the beginning and 105.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:01:25,709 INFO L158 Benchmark]: Boogie Preprocessor took 123.21ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 97.0MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 12:01:25,710 INFO L158 Benchmark]: RCFGBuilder took 866.43ms. Allocated memory is still 169.9MB. Free memory was 97.0MB in the beginning and 115.8MB in the end (delta: -18.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-26 12:01:25,710 INFO L158 Benchmark]: TraceAbstraction took 51037.02ms. Allocated memory was 169.9MB in the beginning and 257.9MB in the end (delta: 88.1MB). Free memory was 115.2MB in the beginning and 169.2MB in the end (delta: -54.0MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2023-11-26 12:01:25,712 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.89ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 109.6MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.69ms. Allocated memory is still 169.9MB. Free memory was 109.2MB in the beginning and 105.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 123.21ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 97.0MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 866.43ms. Allocated memory is still 169.9MB. Free memory was 97.0MB in the beginning and 115.8MB in the end (delta: -18.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 51037.02ms. Allocated memory was 169.9MB in the beginning and 257.9MB in the end (delta: 88.1MB). Free memory was 115.2MB in the beginning and 169.2MB in the end (delta: -54.0MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme --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 f78f07977a6a6c060ce47508f319b35375a64382f2792ef417cdb466597e7230 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:01:28,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:01:28,295 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 12:01:28,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:01:28,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:01:28,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:01:28,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:01:28,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:01:28,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:01:28,362 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:01:28,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:01:28,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:01:28,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:01:28,366 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:01:28,366 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:01:28,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:01:28,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:01:28,368 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:01:28,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:01:28,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:01:28,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:01:28,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:01:28,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:01:28,373 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:01:28,373 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:01:28,374 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:01:28,374 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:01:28,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:01:28,375 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:01:28,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:01:28,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:01:28,377 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:01:28,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:01:28,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:28,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:01:28,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:01:28,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:01:28,379 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:01:28,380 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:01:28,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:01:28,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:01:28,380 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:01:28,381 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:01:28,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:01:28,382 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:01:28,382 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_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f78f07977a6a6c060ce47508f319b35375a64382f2792ef417cdb466597e7230 [2023-11-26 12:01:28,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:01:28,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:01:28,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:01:28,810 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:01:28,811 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:01:28,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i [2023-11-26 12:01:31,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:01:32,213 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:01:32,214 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i [2023-11-26 12:01:32,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/data/8cbe11b1c/0f28252acf6f478d99caf9ad7c645745/FLAGb24cace79 [2023-11-26 12:01:32,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/data/8cbe11b1c/0f28252acf6f478d99caf9ad7c645745 [2023-11-26 12:01:32,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:01:32,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:01:32,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:32,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:01:32,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:01:32,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70808f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32, skipping insertion in model container [2023-11-26 12:01:32,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,295 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:01:32,454 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i[916,929] [2023-11-26 12:01:32,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:32,561 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:01:32,579 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-97.i[916,929] [2023-11-26 12:01:32,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:32,684 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:01:32,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32 WrapperNode [2023-11-26 12:01:32,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:32,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:32,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:01:32,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:01:32,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,758 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 182 [2023-11-26 12:01:32,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:32,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:01:32,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:01:32,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:01:32,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,783 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,808 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]. [2023-11-26 12:01:32,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:01:32,882 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:01:32,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:01:32,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:01:32,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:32" (1/1) ... [2023-11-26 12:01:32,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:32,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:32,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:01:32,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb3f87d-40b9-4024-ae63-e3bcebbde0e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:01:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:01:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:01:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:01:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:01:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:01:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:01:33,195 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:01:33,202 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation