./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu --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 0f3c671fd90b32c42295a3fff7f6ed38c1953794fa7bfd867d0ac70cf5a873bc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:58,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:58,254 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:42:58,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:58,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:58,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:58,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:58,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:58,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:58,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:58,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:58,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:58,301 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:58,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:58,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:58,303 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:58,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:58,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:58,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:58,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:58,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:58,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:58,306 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:58,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:58,307 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:58,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:58,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:58,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:58,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:58,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:58,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:58,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:58,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:58,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:58,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:58,321 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:58,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:58,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:58,321 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:58,322 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_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3c671fd90b32c42295a3fff7f6ed38c1953794fa7bfd867d0ac70cf5a873bc [2023-11-19 07:42:58,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:58,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:58,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:58,658 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:58,658 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:58,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i [2023-11-19 07:43:01,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:02,155 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:02,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i [2023-11-19 07:43:02,171 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/data/e415f46fc/5d51cb2aba48411abebd89a1dc0336eb/FLAGbdbed6486 [2023-11-19 07:43:02,187 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/data/e415f46fc/5d51cb2aba48411abebd89a1dc0336eb [2023-11-19 07:43:02,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:02,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:02,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:02,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:02,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:02,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b7ea68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02, skipping insertion in model container [2023-11-19 07:43:02,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,233 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:02,431 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_a3bbc269-6031-4c4a-8135-5426d6871b0c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i[915,928] [2023-11-19 07:43:02,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:02,481 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:02,495 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_a3bbc269-6031-4c4a-8135-5426d6871b0c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i[915,928] [2023-11-19 07:43:02,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:02,526 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:02,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02 WrapperNode [2023-11-19 07:43:02,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:02,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:02,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:02,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:02,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,567 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 66 [2023-11-19 07:43:02,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:02,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:02,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:02,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:02,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:02,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:02,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:02,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:02,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:02,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:02,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:02,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:43:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:43:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:43:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:02,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:02,749 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:02,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:02,919 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:02,928 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:02,928 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:43:02,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:02 BoogieIcfgContainer [2023-11-19 07:43:02,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:02,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:02,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:02,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:02,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:02" (1/3) ... [2023-11-19 07:43:02,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187e35dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:02, skipping insertion in model container [2023-11-19 07:43:02,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (2/3) ... [2023-11-19 07:43:02,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187e35dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:02, skipping insertion in model container [2023-11-19 07:43:02,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:02" (3/3) ... [2023-11-19 07:43:02,941 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-16.i [2023-11-19 07:43:02,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:02,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:43:03,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:03,016 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;@4d30d16b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:03,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:43:03,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:43:03,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:43:03,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:03,030 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:03,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:03,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:03,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2083022097, now seen corresponding path program 1 times [2023-11-19 07:43:03,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:03,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603764517] [2023-11-19 07:43:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:03,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:43:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:03,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:43:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:43:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:03,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:43:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:03,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:43:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:03,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:43:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:03,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:43:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:43:03,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603764517] [2023-11-19 07:43:03,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603764517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:03,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:03,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:03,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169331860] [2023-11-19 07:43:03,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:03,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:43:03,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:03,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:43:03,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:43:03,438 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:43:03,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:03,460 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2023-11-19 07:43:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:43:03,462 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2023-11-19 07:43:03,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:03,468 INFO L225 Difference]: With dead ends: 57 [2023-11-19 07:43:03,468 INFO L226 Difference]: Without dead ends: 28 [2023-11-19 07:43:03,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:43:03,475 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:03,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-19 07:43:03,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-19 07:43:03,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:43:03,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2023-11-19 07:43:03,516 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 50 [2023-11-19 07:43:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:03,517 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-19 07:43:03,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:43:03,518 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-19 07:43:03,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:43:03,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:03,521 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:03,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:43:03,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:03,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:03,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1362863631, now seen corresponding path program 1 times [2023-11-19 07:43:03,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:03,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121039683] [2023-11-19 07:43:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:03,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:43:03,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:43:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:43:03,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:43:03,740 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:43:03,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:43:03,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:43:03,748 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:43:03,752 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:43:03,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:43:03 BoogieIcfgContainer [2023-11-19 07:43:03,833 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:43:03,834 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:43:03,834 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:43:03,834 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:43:03,835 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:02" (3/4) ... [2023-11-19 07:43:03,837 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:43:03,839 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:43:03,840 INFO L158 Benchmark]: Toolchain (without parser) took 1647.83ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 51.8MB in the end (delta: 63.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,840 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 157.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:03,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.44ms. Allocated memory is still 157.3MB. Free memory was 114.7MB in the beginning and 103.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.78ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,847 INFO L158 Benchmark]: Boogie Preprocessor took 26.63ms. Allocated memory is still 157.3MB. Free memory was 102.2MB in the beginning and 100.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,848 INFO L158 Benchmark]: RCFGBuilder took 336.40ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 89.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,849 INFO L158 Benchmark]: TraceAbstraction took 898.41ms. Allocated memory is still 157.3MB. Free memory was 88.7MB in the beginning and 51.8MB in the end (delta: 36.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 07:43:03,850 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 157.3MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:03,860 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 157.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.44ms. Allocated memory is still 157.3MB. Free memory was 114.7MB in the beginning and 103.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.78ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.63ms. Allocated memory is still 157.3MB. Free memory was 102.2MB in the beginning and 100.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.40ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 89.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 898.41ms. Allocated memory is still 157.3MB. Free memory was 88.7MB in the beginning and 51.8MB in the end (delta: 36.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 157.3MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryDOUBLEComparisonOperation at line 57, overapproximation of someUnaryFLOAToperation at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 63.45; [L23] unsigned long int var_1_2 = 3925393104; [L24] unsigned long int var_1_3 = 256; [L25] unsigned long int var_1_4 = 2; [L26] float var_1_5 = 3.6; [L27] float var_1_6 = 99.372; [L28] double var_1_7 = 32.15; VAL [isInitial=0, var_1_1=1269/20, var_1_2=3925393104, var_1_3=256, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L61] isInitial = 1 [L62] FCALL initially() [L63] COND TRUE 1 [L64] FCALL updateLastVariables() [L65] CALL updateVariables() [L42] var_1_2 = __VERIFIER_nondet_ulong() [L43] CALL assume_abort_if_not(var_1_2 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=256, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=256, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L43] RET assume_abort_if_not(var_1_2 >= 2147483647) VAL [isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=256, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L44] CALL assume_abort_if_not(var_1_2 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=256, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=256, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L44] RET assume_abort_if_not(var_1_2 <= 4294967295) VAL [isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=256, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L45] var_1_3 = __VERIFIER_nondet_ulong() [L46] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L46] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L47] CALL assume_abort_if_not(var_1_3 <= 1073741824) VAL [\old(cond)=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L47] RET assume_abort_if_not(var_1_3 <= 1073741824) VAL [isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=2, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L48] var_1_4 = __VERIFIER_nondet_ulong() [L49] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L49] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L50] CALL assume_abort_if_not(var_1_4 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L50] RET assume_abort_if_not(var_1_4 <= 1073741823) VAL [isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=18/5, var_1_6=24843/250, var_1_7=643/20] [L51] var_1_5 = __VERIFIER_nondet_float() [L52] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=9223372043297226756, var_1_6=24843/250, var_1_7=643/20] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=9223372043297226756, var_1_6=24843/250, var_1_7=643/20] [L52] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=9223372043297226756, var_1_6=24843/250, var_1_7=643/20] [L65] RET updateVariables() [L66] CALL step() [L32] unsigned long int stepLocal_0 = 10u / 16u; VAL [isInitial=1, stepLocal_0=0, var_1_1=1269/20, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=9223372043297226756, var_1_6=24843/250, var_1_7=643/20] [L33] COND FALSE !((var_1_2 - (var_1_3 + var_1_4)) <= stepLocal_0) [L36] var_1_1 = ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))) VAL [isInitial=1, stepLocal_0=0, var_1_1=9223372043297226756, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=9223372043297226756, var_1_6=24843/250, var_1_7=643/20] [L38] var_1_6 = var_1_5 [L39] var_1_7 = var_1_5 VAL [isInitial=1, stepLocal_0=0, var_1_1=9223372043297226756, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=9223372043297226756, var_1_6=9223372043297226756, var_1_7=9223372043297226756] [L66] RET step() [L67] CALL, EXPR property() [L57-L58] return ((((var_1_2 - (var_1_3 + var_1_4)) <= (10u / 16u)) ? (var_1_1 == ((float) var_1_5)) : (var_1_1 == ((float) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))) && (var_1_6 == ((float) var_1_5))) && (var_1_7 == ((double) var_1_5)) ; VAL [\result=0, isInitial=1, var_1_1=9223372043297226756, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=9223372043297226756, var_1_6=9223372043297226756, var_1_7=9223372043297226756] [L67] RET, EXPR property() [L67] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=9223372043297226756, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=9223372043297226756, var_1_6=9223372043297226756, var_1_7=9223372043297226756] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=9223372043297226756, var_1_2=2147483647, var_1_3=1073741824, var_1_4=1073741822, var_1_5=9223372043297226756, var_1_6=9223372043297226756, var_1_7=9223372043297226756] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 84/84 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:43:03,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu --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 0f3c671fd90b32c42295a3fff7f6ed38c1953794fa7bfd867d0ac70cf5a873bc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:06,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:06,633 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:43:06,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:06,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:06,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:06,669 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:06,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:06,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:06,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:06,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:06,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:06,673 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:06,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:06,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:43:06,675 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:06,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:06,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:06,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:43:06,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:06,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:43:06,678 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:43:06,679 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:43:06,679 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:43:06,680 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:06,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:43:06,680 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:06,681 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:06,681 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:06,682 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:06,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:06,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:06,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:06,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:43:06,684 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:43:06,684 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:43:06,684 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:06,685 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:43:06,685 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:06,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:06,685 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:43:06,686 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:06,686 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_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3c671fd90b32c42295a3fff7f6ed38c1953794fa7bfd867d0ac70cf5a873bc [2023-11-19 07:43:07,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:07,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:07,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:07,172 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:07,173 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:07,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i [2023-11-19 07:43:10,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:10,831 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:10,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i [2023-11-19 07:43:10,846 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/data/95c898eb1/9ee652dd5e474d5396e184313251e377/FLAG0416a0cef [2023-11-19 07:43:10,865 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/data/95c898eb1/9ee652dd5e474d5396e184313251e377 [2023-11-19 07:43:10,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:10,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:10,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:10,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:10,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:10,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:10" (1/1) ... [2023-11-19 07:43:10,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce9c67b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:10, skipping insertion in model container [2023-11-19 07:43:10,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:10" (1/1) ... [2023-11-19 07:43:10,910 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:11,128 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_a3bbc269-6031-4c4a-8135-5426d6871b0c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i[915,928] [2023-11-19 07:43:11,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:11,209 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:11,224 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_a3bbc269-6031-4c4a-8135-5426d6871b0c/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-16.i[915,928] [2023-11-19 07:43:11,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:11,256 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:11,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11 WrapperNode [2023-11-19 07:43:11,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:11,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:11,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:11,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:11,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,303 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 66 [2023-11-19 07:43:11,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:11,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:11,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:11,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:11,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:11,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:11,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:11,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:11,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (1/1) ... [2023-11-19 07:43:11,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:11,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:11,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:11,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:43:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:43:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:43:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:11,553 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:11,556 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:11,961 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:11,978 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:11,979 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:43:11,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:11 BoogieIcfgContainer [2023-11-19 07:43:11,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:11,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:11,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:11,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:11,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:10" (1/3) ... [2023-11-19 07:43:11,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa24aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:11, skipping insertion in model container [2023-11-19 07:43:11,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:11" (2/3) ... [2023-11-19 07:43:11,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa24aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:11, skipping insertion in model container [2023-11-19 07:43:11,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:11" (3/3) ... [2023-11-19 07:43:11,997 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-16.i [2023-11-19 07:43:12,018 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:12,018 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:43:12,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:12,087 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;@65526e9f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:12,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:43:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:43:12,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:43:12,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:12,102 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:12,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:12,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:12,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2083022097, now seen corresponding path program 1 times [2023-11-19 07:43:12,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:12,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513973896] [2023-11-19 07:43:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:12,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:12,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:12,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:12,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:43:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:12,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:43:12,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:43:12,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:12,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:12,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513973896] [2023-11-19 07:43:12,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513973896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:12,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:12,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:12,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867032382] [2023-11-19 07:43:12,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:12,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:43:12,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:12,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:43:12,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:43:12,463 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:43:12,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:12,487 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2023-11-19 07:43:12,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:43:12,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2023-11-19 07:43:12,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:12,499 INFO L225 Difference]: With dead ends: 57 [2023-11-19 07:43:12,500 INFO L226 Difference]: Without dead ends: 28 [2023-11-19 07:43:12,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:43:12,511 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:12,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:12,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-19 07:43:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-19 07:43:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:43:12,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2023-11-19 07:43:12,573 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 50 [2023-11-19 07:43:12,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:12,574 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-19 07:43:12,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:43:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-19 07:43:12,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:43:12,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:12,582 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:12,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:12,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:12,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:12,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:12,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1362863631, now seen corresponding path program 1 times [2023-11-19 07:43:12,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:12,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526745648] [2023-11-19 07:43:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:12,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:12,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:12,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:12,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:43:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:13,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 07:43:13,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 65 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:43:22,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:29,001 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 07:43:29,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:29,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526745648] [2023-11-19 07:43:29,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526745648] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:29,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:29,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2023-11-19 07:43:29,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751704135] [2023-11-19 07:43:29,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:29,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:43:29,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:29,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:43:29,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:43:29,007 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:43:35,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:35,617 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2023-11-19 07:43:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:43:35,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 50 [2023-11-19 07:43:35,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:35,625 INFO L225 Difference]: With dead ends: 59 [2023-11-19 07:43:35,625 INFO L226 Difference]: Without dead ends: 57 [2023-11-19 07:43:35,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2023-11-19 07:43:35,627 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 51 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:35,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 133 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-19 07:43:35,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-19 07:43:35,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 41. [2023-11-19 07:43:35,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:43:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2023-11-19 07:43:35,671 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 50 [2023-11-19 07:43:35,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:35,674 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2023-11-19 07:43:35,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:43:35,675 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2023-11-19 07:43:35,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:43:35,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:35,678 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:35,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:35,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:35,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:43:35,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:35,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1305605329, now seen corresponding path program 1 times [2023-11-19 07:43:35,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:35,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165463270] [2023-11-19 07:43:35,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:35,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:35,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:35,890 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:35,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3bbc269-6031-4c4a-8135-5426d6871b0c/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:43:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:36,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 07:43:36,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 65 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 07:43:42,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 07:43:50,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:50,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165463270] [2023-11-19 07:43:50,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165463270] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:50,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:50,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 28 [2023-11-19 07:43:50,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41208734] [2023-11-19 07:43:50,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:50,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:43:50,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:50,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:43:50,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:43:50,825 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7)