./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9be54bf039b1b69bac47621c18caa89883f4e5db7b74fe4f3e62990547785f77 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:46:04,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:46:04,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:46:04,774 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:46:04,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:46:04,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:46:04,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:46:04,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:46:04,804 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:46:04,804 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:46:04,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:46:04,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:46:04,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:46:04,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:46:04,808 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:46:04,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:46:04,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:46:04,810 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:46:04,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:46:04,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:46:04,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:46:04,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:46:04,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:46:04,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:46:04,815 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:46:04,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:46:04,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:46:04,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:46:04,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:46:04,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:46:04,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:46:04,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:46:04,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:46:04,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:46:04,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:46:04,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:46:04,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:46:04,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:46:04,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:46:04,825 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:46:04,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:46:04,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:46:04,827 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_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9be54bf039b1b69bac47621c18caa89883f4e5db7b74fe4f3e62990547785f77 [2023-11-26 11:46:05,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:46:05,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:46:05,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:46:05,193 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:46:05,193 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:46:05,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2023-11-26 11:46:08,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:46:08,775 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:46:08,776 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2023-11-26 11:46:08,786 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/data/311ca3fe7/2bd0f360358044b9998c9023e01e9cf7/FLAG2e254ba38 [2023-11-26 11:46:08,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/data/311ca3fe7/2bd0f360358044b9998c9023e01e9cf7 [2023-11-26 11:46:08,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:46:08,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:46:08,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:46:08,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:46:08,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:46:08,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:46:08" (1/1) ... [2023-11-26 11:46:08,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105824c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:08, skipping insertion in model container [2023-11-26 11:46:08,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:46:08" (1/1) ... [2023-11-26 11:46:08,847 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:46:09,018 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_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i[915,928] [2023-11-26 11:46:09,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:46:09,071 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:46:09,086 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_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i[915,928] [2023-11-26 11:46:09,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:46:09,160 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:46:09,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09 WrapperNode [2023-11-26 11:46:09,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:46:09,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:46:09,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:46:09,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:46:09,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,232 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2023-11-26 11:46:09,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:46:09,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:46:09,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:46:09,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:46:09,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,267 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:46:09,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,290 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:46:09,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:46:09,295 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:46:09,295 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:46:09,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (1/1) ... [2023-11-26 11:46:09,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:46:09,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:09,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:46:09,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:46:09,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:46:09,398 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:46:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:46:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:46:09,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:46:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:46:09,538 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:46:09,541 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:46:09,891 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:46:09,935 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:46:09,935 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:46:09,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:46:09 BoogieIcfgContainer [2023-11-26 11:46:09,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:46:09,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:46:09,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:46:09,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:46:09,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:46:08" (1/3) ... [2023-11-26 11:46:09,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4beb9bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:46:09, skipping insertion in model container [2023-11-26 11:46:09,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:09" (2/3) ... [2023-11-26 11:46:09,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4beb9bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:46:09, skipping insertion in model container [2023-11-26 11:46:09,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:46:09" (3/3) ... [2023-11-26 11:46:09,947 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-33.i [2023-11-26 11:46:09,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:46:09,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:46:10,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:46:10,033 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;@40efc493, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:46:10,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:46:10,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:46:10,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-26 11:46:10,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:10,050 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:10,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:10,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:10,057 INFO L85 PathProgramCache]: Analyzing trace with hash -407985955, now seen corresponding path program 1 times [2023-11-26 11:46:10,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:10,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105832100] [2023-11-26 11:46:10,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:10,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:10,272 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:46:10,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819522551] [2023-11-26 11:46:10,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:10,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:10,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:10,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:46:10,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:46:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:10,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:46:10,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-26 11:46:10,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:46:10,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:10,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105832100] [2023-11-26 11:46:10,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:46:10,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819522551] [2023-11-26 11:46:10,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819522551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:10,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:10,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:46:10,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101479567] [2023-11-26 11:46:10,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:10,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:46:10,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:10,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:46:10,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:46:10,634 INFO L87 Difference]: Start difference. First operand has 42 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:10,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:10,774 INFO L93 Difference]: Finished difference Result 133 states and 225 transitions. [2023-11-26 11:46:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:46:10,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 60 [2023-11-26 11:46:10,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:10,787 INFO L225 Difference]: With dead ends: 133 [2023-11-26 11:46:10,787 INFO L226 Difference]: Without dead ends: 92 [2023-11-26 11:46:10,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:46:10,795 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 73 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:10,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 142 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:46:10,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-26 11:46:10,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2023-11-26 11:46:10,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 64 states have (on average 1.265625) internal successors, (81), 64 states have internal predecessors, (81), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:46:10,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 113 transitions. [2023-11-26 11:46:10,859 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 113 transitions. Word has length 60 [2023-11-26 11:46:10,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:10,860 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 113 transitions. [2023-11-26 11:46:10,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:10,861 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 113 transitions. [2023-11-26 11:46:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 11:46:10,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:10,864 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:10,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:46:11,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 11:46:11,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:11,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:11,070 INFO L85 PathProgramCache]: Analyzing trace with hash -497418755, now seen corresponding path program 1 times [2023-11-26 11:46:11,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:11,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447344857] [2023-11-26 11:46:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:11,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:11,110 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:46:11,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811767297] [2023-11-26 11:46:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:11,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:11,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:11,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:46:11,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:46:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:11,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:46:11,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:11,353 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-26 11:46:11,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:46:11,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:11,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447344857] [2023-11-26 11:46:11,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:46:11,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811767297] [2023-11-26 11:46:11,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811767297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:11,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:11,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:46:11,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496956065] [2023-11-26 11:46:11,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:11,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:46:11,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:11,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:46:11,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:46:11,358 INFO L87 Difference]: Start difference. First operand 83 states and 113 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:11,577 INFO L93 Difference]: Finished difference Result 174 states and 233 transitions. [2023-11-26 11:46:11,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:46:11,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 64 [2023-11-26 11:46:11,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:11,584 INFO L225 Difference]: With dead ends: 174 [2023-11-26 11:46:11,585 INFO L226 Difference]: Without dead ends: 92 [2023-11-26 11:46:11,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:46:11,590 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 84 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:11,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 209 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:46:11,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-26 11:46:11,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2023-11-26 11:46:11,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 64 states have (on average 1.25) internal successors, (80), 64 states have internal predecessors, (80), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:46:11,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 112 transitions. [2023-11-26 11:46:11,629 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 112 transitions. Word has length 64 [2023-11-26 11:46:11,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:11,631 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 112 transitions. [2023-11-26 11:46:11,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:11,631 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 112 transitions. [2023-11-26 11:46:11,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 11:46:11,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:11,636 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:11,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:46:11,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:11,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:11,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:11,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1084224769, now seen corresponding path program 1 times [2023-11-26 11:46:11,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:11,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248655004] [2023-11-26 11:46:11,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:11,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:11,890 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:46:11,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437997496] [2023-11-26 11:46:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:11,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:11,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:11,892 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:46:11,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:46:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:11,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:46:12,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-26 11:46:12,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:46:12,276 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-26 11:46:12,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:12,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248655004] [2023-11-26 11:46:12,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:46:12,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437997496] [2023-11-26 11:46:12,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437997496] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:46:12,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:46:12,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-11-26 11:46:12,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492376071] [2023-11-26 11:46:12,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:46:12,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:46:12,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:12,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:46:12,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:46:12,281 INFO L87 Difference]: Start difference. First operand 83 states and 112 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:46:12,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:12,495 INFO L93 Difference]: Finished difference Result 177 states and 233 transitions. [2023-11-26 11:46:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:46:12,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 64 [2023-11-26 11:46:12,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:12,498 INFO L225 Difference]: With dead ends: 177 [2023-11-26 11:46:12,498 INFO L226 Difference]: Without dead ends: 95 [2023-11-26 11:46:12,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:46:12,501 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 105 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:12,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 95 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:46:12,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-26 11:46:12,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2023-11-26 11:46:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 70 states have (on average 1.2) internal successors, (84), 70 states have internal predecessors, (84), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:46:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 116 transitions. [2023-11-26 11:46:12,517 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 116 transitions. Word has length 64 [2023-11-26 11:46:12,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:12,518 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 116 transitions. [2023-11-26 11:46:12,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:46:12,518 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 116 transitions. [2023-11-26 11:46:12,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 11:46:12,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:12,520 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:12,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:46:12,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:12,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:12,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:12,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1877509434, now seen corresponding path program 1 times [2023-11-26 11:46:12,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:12,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464092472] [2023-11-26 11:46:12,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:12,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:12,796 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:46:12,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841340662] [2023-11-26 11:46:12,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:12,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:12,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:12,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:46:12,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:46:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:12,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-26 11:46:12,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-26 11:46:13,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:46:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-26 11:46:13,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464092472] [2023-11-26 11:46:13,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:46:13,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841340662] [2023-11-26 11:46:13,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841340662] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 11:46:13,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:46:13,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2023-11-26 11:46:13,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166520322] [2023-11-26 11:46:13,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:13,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:46:13,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:13,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:46:13,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:46:13,686 INFO L87 Difference]: Start difference. First operand 91 states and 116 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:46:14,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:14,034 INFO L93 Difference]: Finished difference Result 291 states and 367 transitions. [2023-11-26 11:46:14,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:46:14,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2023-11-26 11:46:14,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:14,038 INFO L225 Difference]: With dead ends: 291 [2023-11-26 11:46:14,038 INFO L226 Difference]: Without dead ends: 201 [2023-11-26 11:46:14,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2023-11-26 11:46:14,041 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 128 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:14,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 296 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:46:14,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-26 11:46:14,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 128. [2023-11-26 11:46:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 97 states have (on average 1.1649484536082475) internal successors, (113), 97 states have internal predecessors, (113), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:46:14,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 161 transitions. [2023-11-26 11:46:14,092 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 161 transitions. Word has length 65 [2023-11-26 11:46:14,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:14,093 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 161 transitions. [2023-11-26 11:46:14,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:46:14,094 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 161 transitions. [2023-11-26 11:46:14,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 11:46:14,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:14,096 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:14,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:46:14,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:14,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:14,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:14,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1068162808, now seen corresponding path program 1 times [2023-11-26 11:46:14,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:14,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53547064] [2023-11-26 11:46:14,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:14,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:14,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:46:14,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4464979] [2023-11-26 11:46:14,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:14,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:14,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:14,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:46:14,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:46:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:14,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-26 11:46:14,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-26 11:46:25,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:46:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-26 11:46:31,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:31,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53547064] [2023-11-26 11:46:31,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:46:31,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4464979] [2023-11-26 11:46:31,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4464979] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 11:46:31,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:46:31,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 22 [2023-11-26 11:46:31,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073187383] [2023-11-26 11:46:31,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:31,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:46:31,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:31,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:46:31,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:46:31,324 INFO L87 Difference]: Start difference. First operand 128 states and 161 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:33,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:33,624 INFO L93 Difference]: Finished difference Result 189 states and 235 transitions. [2023-11-26 11:46:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 11:46:33,624 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2023-11-26 11:46:33,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:33,626 INFO L225 Difference]: With dead ends: 189 [2023-11-26 11:46:33,626 INFO L226 Difference]: Without dead ends: 187 [2023-11-26 11:46:33,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=353, Invalid=1287, Unknown=0, NotChecked=0, Total=1640 [2023-11-26 11:46:33,629 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 253 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:33,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 208 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:46:33,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-26 11:46:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 152. [2023-11-26 11:46:33,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 121 states have (on average 1.1818181818181819) internal successors, (143), 121 states have internal predecessors, (143), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:46:33,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 191 transitions. [2023-11-26 11:46:33,656 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 191 transitions. Word has length 65 [2023-11-26 11:46:33,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:33,657 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 191 transitions. [2023-11-26 11:46:33,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:33,658 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 191 transitions. [2023-11-26 11:46:33,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-26 11:46:33,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:33,661 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:33,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-26 11:46:33,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:33,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:33,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:33,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1989542466, now seen corresponding path program 1 times [2023-11-26 11:46:33,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:33,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181674059] [2023-11-26 11:46:33,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:33,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:33,907 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:46:33,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1531731585] [2023-11-26 11:46:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:33,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:33,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:33,909 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:46:33,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:46:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:34,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:46:34,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-26 11:46:34,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:46:34,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:46:34,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181674059] [2023-11-26 11:46:34,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:46:34,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531731585] [2023-11-26 11:46:34,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531731585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:34,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:34,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:46:34,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830216870] [2023-11-26 11:46:34,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:34,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:46:34,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:46:34,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:46:34,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:34,060 INFO L87 Difference]: Start difference. First operand 152 states and 191 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 11:46:34,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:34,087 INFO L93 Difference]: Finished difference Result 154 states and 192 transitions. [2023-11-26 11:46:34,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:46:34,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 126 [2023-11-26 11:46:34,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:34,092 INFO L225 Difference]: With dead ends: 154 [2023-11-26 11:46:34,092 INFO L226 Difference]: Without dead ends: 84 [2023-11-26 11:46:34,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:46:34,096 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 6 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:34,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 78 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:46:34,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-26 11:46:34,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-26 11:46:34,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 63 states have (on average 1.0634920634920635) internal successors, (67), 63 states have internal predecessors, (67), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:46:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 99 transitions. [2023-11-26 11:46:34,129 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 99 transitions. Word has length 126 [2023-11-26 11:46:34,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:34,130 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 99 transitions. [2023-11-26 11:46:34,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-26 11:46:34,130 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 99 transitions. [2023-11-26 11:46:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-26 11:46:34,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:34,136 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:34,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:46:34,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:34,343 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:34,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:34,344 INFO L85 PathProgramCache]: Analyzing trace with hash 212554780, now seen corresponding path program 1 times [2023-11-26 11:46:34,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:46:34,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644717927] [2023-11-26 11:46:34,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:34,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:46:34,370 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:46:34,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728362692] [2023-11-26 11:46:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:34,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:46:34,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:34,372 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:46:34,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:46:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:46:34,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:46:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:46:34,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:46:34,706 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:46:34,707 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:46:34,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:46:34,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 11:46:34,921 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:34,925 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:46:34,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-26 11:46:34,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-26 11:46:35,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-26 11:46:35,012 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-26 11:46:35,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:46:35 BoogieIcfgContainer [2023-11-26 11:46:35,034 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:46:35,035 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:46:35,035 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:46:35,035 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:46:35,036 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:46:09" (3/4) ... [2023-11-26 11:46:35,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:46:35,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:46:35,040 INFO L158 Benchmark]: Toolchain (without parser) took 26232.40ms. Allocated memory was 146.8MB in the beginning and 450.9MB in the end (delta: 304.1MB). Free memory was 114.5MB in the beginning and 180.6MB in the end (delta: -66.1MB). Peak memory consumption was 240.8MB. Max. memory is 16.1GB. [2023-11-26 11:46:35,041 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:46:35,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.16ms. Allocated memory is still 146.8MB. Free memory was 114.2MB in the beginning and 102.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:46:35,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.93ms. Allocated memory is still 146.8MB. Free memory was 102.2MB in the beginning and 99.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:46:35,042 INFO L158 Benchmark]: Boogie Preprocessor took 60.21ms. Allocated memory is still 146.8MB. Free memory was 99.7MB in the beginning and 97.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:46:35,043 INFO L158 Benchmark]: RCFGBuilder took 642.05ms. Allocated memory is still 146.8MB. Free memory was 97.0MB in the beginning and 80.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:46:35,043 INFO L158 Benchmark]: TraceAbstraction took 25095.07ms. Allocated memory was 146.8MB in the beginning and 450.9MB in the end (delta: 304.1MB). Free memory was 79.2MB in the beginning and 180.6MB in the end (delta: -101.4MB). Peak memory consumption was 205.2MB. Max. memory is 16.1GB. [2023-11-26 11:46:35,044 INFO L158 Benchmark]: Witness Printer took 5.21ms. Allocated memory is still 450.9MB. Free memory is still 180.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:46:35,046 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.16ms. Allocated memory is still 146.8MB. Free memory was 114.2MB in the beginning and 102.2MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.93ms. Allocated memory is still 146.8MB. Free memory was 102.2MB in the beginning and 99.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.21ms. Allocated memory is still 146.8MB. Free memory was 99.7MB in the beginning and 97.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 642.05ms. Allocated memory is still 146.8MB. Free memory was 97.0MB in the beginning and 80.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 25095.07ms. Allocated memory was 146.8MB in the beginning and 450.9MB in the end (delta: 304.1MB). Free memory was 79.2MB in the beginning and 180.6MB in the end (delta: -101.4MB). Peak memory consumption was 205.2MB. Max. memory is 16.1GB. * Witness Printer took 5.21ms. Allocated memory is still 450.9MB. Free memory is still 180.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 83, overapproximation of someBinaryArithmeticFLOAToperation at line 60. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -10; [L23] unsigned char var_1_7 = 200; [L24] unsigned char var_1_8 = 4; [L25] signed char var_1_9 = 50; [L26] signed char var_1_12 = -5; [L27] float var_1_13 = 999999999999.8; [L28] float var_1_14 = 100.5; [L29] float var_1_15 = 32.75; [L30] unsigned char var_1_16 = 1; [L31] unsigned char var_1_17 = 1; [L32] unsigned char var_1_18 = 128; [L33] unsigned char last_1_var_1_7 = 200; [L34] signed char last_1_var_1_9 = 50; [L87] isInitial = 1 [L88] FCALL initially() [L89] COND TRUE 1 [L90] CALL updateLastVariables() [L79] last_1_var_1_7 = var_1_7 [L80] last_1_var_1_9 = var_1_9 [L90] RET updateLastVariables() [L91] CALL updateVariables() [L64] var_1_8 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_9=50] [L65] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_9=50] [L66] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L66] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=-5, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L67] var_1_12 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L68] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L69] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L69] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_14=201/2, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_15=131/4, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L74] var_1_17 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L75] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L76] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L76] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L91] RET updateVariables() [L92] CALL step() [L38] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-10, var_1_7=200, var_1_8=0, var_1_9=50] [L38] signed long int stepLocal_0 = (last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9; [L39] COND FALSE !(stepLocal_0 < -1) [L42] var_1_1 = (128 - (last_1_var_1_7 + last_1_var_1_7)) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_0=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=-272, var_1_7=200, var_1_8=0, var_1_9=50] [L44] var_1_16 = var_1_17 [L45] var_1_18 = var_1_8 [L46] signed short int stepLocal_2 = var_1_1; [L47] unsigned char stepLocal_1 = (var_1_1 * var_1_18) < -10000; VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=-272, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=200, var_1_8=0, var_1_9=50] [L48] COND TRUE \read(var_1_16) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=-272, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=200, var_1_8=0, var_1_9=50] [L49] COND FALSE !(stepLocal_1 && var_1_16) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=-272, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=200, var_1_8=0, var_1_9=50] [L55] COND TRUE var_1_18 == var_1_18 [L56] var_1_7 = var_1_8 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=-272, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=0, var_1_9=50] [L58] signed short int stepLocal_3 = var_1_1; VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=-272, stepLocal_3=-272, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=0, var_1_9=50] [L59] COND FALSE !(var_1_18 == stepLocal_3) VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=-272, stepLocal_3=-272, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=0, var_1_9=50] [L92] RET step() [L93] CALL, EXPR property() [L83] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=0, var_1_9=50] [L83-L84] return ((((((((last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (last_1_var_1_7 + last_1_var_1_7))))) && ((var_1_18 == var_1_18) ? (var_1_7 == ((unsigned char) var_1_8)) : 1)) && (var_1_16 ? ((((var_1_1 * var_1_18) < -10000) && var_1_16) ? ((var_1_1 > var_1_1) ? (var_1_9 == ((signed char) var_1_12)) : 1) : 1) : 1)) && ((var_1_18 == var_1_1) ? (var_1_13 == ((float) (var_1_14 - var_1_15))) : 1)) && (var_1_16 == ((unsigned char) var_1_17))) && (var_1_18 == ((unsigned char) var_1_8)) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=0, var_1_9=50] [L93] RET __VERIFIER_assert(property()) [L94] isInitial = 0 VAL [isInitial=0, last_1_var_1_7=200, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=0, var_1_9=50] [L89] COND TRUE 1 [L90] CALL updateLastVariables() [L79] last_1_var_1_7 = var_1_7 [L80] last_1_var_1_9 = var_1_9 [L90] RET updateLastVariables() [L91] CALL updateVariables() [L64] var_1_8 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_9=50] [L65] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_9=50] [L66] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L66] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=126, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L67] var_1_12 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L68] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L69] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L69] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L74] var_1_17 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L75] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L76] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L76] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L91] RET updateVariables() [L92] CALL step() [L38] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=-272, var_1_7=0, var_1_8=128, var_1_9=50] [L38] signed long int stepLocal_0 = (last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9; [L39] COND FALSE !(stepLocal_0 < -1) [L42] var_1_1 = (128 - (last_1_var_1_7 + last_1_var_1_7)) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, stepLocal_0=50, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=0, var_1_1=128, var_1_7=0, var_1_8=128, var_1_9=50] [L44] var_1_16 = var_1_17 [L45] var_1_18 = var_1_8 [L46] signed short int stepLocal_2 = var_1_1; [L47] unsigned char stepLocal_1 = (var_1_1 * var_1_18) < -10000; VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=128, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=128, var_1_7=0, var_1_8=128, var_1_9=50] [L48] COND TRUE \read(var_1_16) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=128, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=128, var_1_7=0, var_1_8=128, var_1_9=50] [L49] COND FALSE !(stepLocal_1 && var_1_16) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=128, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=128, var_1_7=0, var_1_8=128, var_1_9=50] [L55] COND TRUE var_1_18 == var_1_18 [L56] var_1_7 = var_1_8 VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=128, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=128, var_1_7=128, var_1_8=128, var_1_9=50] [L58] signed short int stepLocal_3 = var_1_1; VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=128, stepLocal_3=128, var_1_12=-127, var_1_13=4999999999999/5, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=128, var_1_7=128, var_1_8=128, var_1_9=50] [L59] COND TRUE var_1_18 == stepLocal_3 [L60] var_1_13 = (var_1_14 - var_1_15) VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, stepLocal_0=50, stepLocal_1=0, stepLocal_2=128, stepLocal_3=128, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=128, var_1_7=128, var_1_8=128, var_1_9=50] [L92] RET step() [L93] CALL, EXPR property() [L83] EXPR last_1_var_1_9 ^ last_1_var_1_9 VAL [isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=128, var_1_7=128, var_1_8=128, var_1_9=50] [L83-L84] return ((((((((last_1_var_1_9 ^ last_1_var_1_9) + last_1_var_1_9) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (last_1_var_1_7 + last_1_var_1_7))))) && ((var_1_18 == var_1_18) ? (var_1_7 == ((unsigned char) var_1_8)) : 1)) && (var_1_16 ? ((((var_1_1 * var_1_18) < -10000) && var_1_16) ? ((var_1_1 > var_1_1) ? (var_1_9 == ((signed char) var_1_12)) : 1) : 1) : 1)) && ((var_1_18 == var_1_1) ? (var_1_13 == ((float) (var_1_14 - var_1_15))) : 1)) && (var_1_16 == ((unsigned char) var_1_17))) && (var_1_18 == ((unsigned char) var_1_8)) ; [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=128, var_1_7=128, var_1_8=128, var_1_9=50] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=0, last_1_var_1_7=0, last_1_var_1_9=50, var_1_12=-127, var_1_16=1, var_1_17=1, var_1_18=128, var_1_1=128, var_1_7=128, var_1_8=128, var_1_9=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.9s, OverallIterations: 7, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 650 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 649 mSDsluCounter, 1028 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 772 mSDsCounter, 170 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 517 IncrementalHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 170 mSolverCounterUnsat, 256 mSDtfsCounter, 517 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 666 GetRequests, 583 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=5, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 130 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 18.3s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 629 ConstructedInterpolants, 0 QuantifiedInterpolants, 4215 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1171 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 1358/1403 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 [2023-11-26 11:46:35,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9be54bf039b1b69bac47621c18caa89883f4e5db7b74fe4f3e62990547785f77 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:46:37,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:46:38,102 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:46:38,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:46:38,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:46:38,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:46:38,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:46:38,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:46:38,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:46:38,176 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:46:38,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:46:38,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:46:38,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:46:38,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:46:38,182 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:46:38,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:46:38,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:46:38,184 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:46:38,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:46:38,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:46:38,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:46:38,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:46:38,188 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:46:38,189 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:46:38,190 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:46:38,190 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:46:38,191 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:46:38,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:46:38,192 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:46:38,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:46:38,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:46:38,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:46:38,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:46:38,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:46:38,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:46:38,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:46:38,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:46:38,199 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:46:38,200 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:46:38,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:46:38,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:46:38,201 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:46:38,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:46:38,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:46:38,203 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:46:38,203 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_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9be54bf039b1b69bac47621c18caa89883f4e5db7b74fe4f3e62990547785f77 [2023-11-26 11:46:38,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:46:38,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:46:38,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:46:38,735 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:46:38,736 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:46:38,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2023-11-26 11:46:42,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:46:42,664 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:46:42,665 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i [2023-11-26 11:46:42,677 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/data/02cfcbd87/7f5617f629464301baaf58747b528101/FLAG7a6d5f0fe [2023-11-26 11:46:42,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/data/02cfcbd87/7f5617f629464301baaf58747b528101 [2023-11-26 11:46:42,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:46:42,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:46:42,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:46:42,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:46:42,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:46:42,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:46:42" (1/1) ... [2023-11-26 11:46:42,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd0f36a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:42, skipping insertion in model container [2023-11-26 11:46:42,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:46:42" (1/1) ... [2023-11-26 11:46:42,764 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:46:42,983 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_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i[915,928] [2023-11-26 11:46:43,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:46:43,096 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:46:43,119 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_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-33.i[915,928] [2023-11-26 11:46:43,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:46:43,190 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:46:43,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43 WrapperNode [2023-11-26 11:46:43,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:46:43,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:46:43,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:46:43,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:46:43,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,271 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2023-11-26 11:46:43,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:46:43,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:46:43,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:46:43,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:46:43,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,302 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:46:43,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,324 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:46:43,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:46:43,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:46:43,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:46:43,327 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (1/1) ... [2023-11-26 11:46:43,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:46:43,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:43,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:46:43,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:46:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:46:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:46:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:46:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:46:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:46:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:46:43,582 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:46:43,585 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:46:44,029 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:46:44,087 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:46:44,095 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:46:44,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:46:44 BoogieIcfgContainer [2023-11-26 11:46:44,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:46:44,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:46:44,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:46:44,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:46:44,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:46:42" (1/3) ... [2023-11-26 11:46:44,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b03122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:46:44, skipping insertion in model container [2023-11-26 11:46:44,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:43" (2/3) ... [2023-11-26 11:46:44,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b03122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:46:44, skipping insertion in model container [2023-11-26 11:46:44,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:46:44" (3/3) ... [2023-11-26 11:46:44,108 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-33.i [2023-11-26 11:46:44,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:46:44,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:46:44,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:46:44,203 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;@d8a3eeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:46:44,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:46:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:46:44,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:46:44,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:44,222 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:44,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:44,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:44,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2069998517, now seen corresponding path program 1 times [2023-11-26 11:46:44,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:46:44,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488249508] [2023-11-26 11:46:44,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:44,251 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 [2023-11-26 11:46:44,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:46:44,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:46:44,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:46:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:44,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:46:44,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-26 11:46:44,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:46:44,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:46:44,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488249508] [2023-11-26 11:46:44,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488249508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:44,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:44,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:46:44,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321892716] [2023-11-26 11:46:44,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:44,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:46:44,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:46:44,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:46:44,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:46:44,671 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:46:44,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:44,835 INFO L93 Difference]: Finished difference Result 65 states and 106 transitions. [2023-11-26 11:46:44,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:46:44,841 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-11-26 11:46:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:44,850 INFO L225 Difference]: With dead ends: 65 [2023-11-26 11:46:44,850 INFO L226 Difference]: Without dead ends: 32 [2023-11-26 11:46:44,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:46:44,857 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:44,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:46:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-26 11:46:44,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-26 11:46:44,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:46:44,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2023-11-26 11:46:44,900 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 56 [2023-11-26 11:46:44,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:44,900 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2023-11-26 11:46:44,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:46:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-11-26 11:46:44,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:46:44,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:44,904 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:44,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:46:45,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:46:45,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:45,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:45,111 INFO L85 PathProgramCache]: Analyzing trace with hash 592198129, now seen corresponding path program 1 times [2023-11-26 11:46:45,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:46:45,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179101595] [2023-11-26 11:46:45,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:45,112 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 [2023-11-26 11:46:45,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:46:45,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:46:45,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:46:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:45,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:46:45,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:45,485 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-26 11:46:45,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:46:45,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:46:45,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179101595] [2023-11-26 11:46:45,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179101595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:45,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:45,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:46:45,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832049699] [2023-11-26 11:46:45,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:45,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:46:45,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:46:45,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:46:45,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:46:45,491 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:45,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:45,812 INFO L93 Difference]: Finished difference Result 103 states and 140 transitions. [2023-11-26 11:46:45,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:46:45,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2023-11-26 11:46:45,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:45,818 INFO L225 Difference]: With dead ends: 103 [2023-11-26 11:46:45,818 INFO L226 Difference]: Without dead ends: 72 [2023-11-26 11:46:45,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:46:45,820 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 68 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:45,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 157 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:46:45,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-26 11:46:45,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 61. [2023-11-26 11:46:45,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 42 states have internal predecessors, (53), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:46:45,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 85 transitions. [2023-11-26 11:46:45,841 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 85 transitions. Word has length 56 [2023-11-26 11:46:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:45,842 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 85 transitions. [2023-11-26 11:46:45,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2023-11-26 11:46:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:46:45,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:45,845 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:45,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:46:46,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:46:46,046 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:46,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:46,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1272256499, now seen corresponding path program 1 times [2023-11-26 11:46:46,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:46:46,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339103800] [2023-11-26 11:46:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:46,048 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 [2023-11-26 11:46:46,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:46:46,049 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:46:46,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:46:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:46,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:46:46,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:46,376 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-26 11:46:46,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:46:46,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:46:46,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339103800] [2023-11-26 11:46:46,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339103800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:46,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:46,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 11:46:46,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271001115] [2023-11-26 11:46:46,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:46,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:46:46,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:46:46,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:46:46,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:46:46,380 INFO L87 Difference]: Start difference. First operand 61 states and 85 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:46:46,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:46,893 INFO L93 Difference]: Finished difference Result 141 states and 185 transitions. [2023-11-26 11:46:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:46:46,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-11-26 11:46:46,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:46,901 INFO L225 Difference]: With dead ends: 141 [2023-11-26 11:46:46,905 INFO L226 Difference]: Without dead ends: 81 [2023-11-26 11:46:46,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:46:46,908 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 68 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:46,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 67 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:46:46,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-26 11:46:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 77. [2023-11-26 11:46:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 54 states have internal predecessors, (63), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:46:46,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 95 transitions. [2023-11-26 11:46:46,951 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 95 transitions. Word has length 56 [2023-11-26 11:46:46,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:46,953 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 95 transitions. [2023-11-26 11:46:46,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:46:46,954 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 95 transitions. [2023-11-26 11:46:46,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 11:46:46,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:46,955 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:46,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 11:46:47,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:46:47,157 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:47,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:47,157 INFO L85 PathProgramCache]: Analyzing trace with hash 119322627, now seen corresponding path program 1 times [2023-11-26 11:46:47,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:46:47,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383621177] [2023-11-26 11:46:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:47,158 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 [2023-11-26 11:46:47,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:46:47,162 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:46:47,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-26 11:46:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:47,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:46:47,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:46:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-26 11:46:47,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:46:47,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:46:47,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383621177] [2023-11-26 11:46:47,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383621177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:46:47,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:46:47,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:46:47,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449499938] [2023-11-26 11:46:47,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:46:47,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:46:47,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:46:47,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:46:47,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:46:47,576 INFO L87 Difference]: Start difference. First operand 77 states and 95 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:46:47,983 INFO L93 Difference]: Finished difference Result 252 states and 309 transitions. [2023-11-26 11:46:47,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:46:47,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 57 [2023-11-26 11:46:47,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:46:47,987 INFO L225 Difference]: With dead ends: 252 [2023-11-26 11:46:47,987 INFO L226 Difference]: Without dead ends: 176 [2023-11-26 11:46:47,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:46:47,990 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 67 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:46:47,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 225 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:46:47,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-26 11:46:48,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 114. [2023-11-26 11:46:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 80 states have (on average 1.1375) internal successors, (91), 80 states have internal predecessors, (91), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:46:48,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2023-11-26 11:46:48,027 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 57 [2023-11-26 11:46:48,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:46:48,028 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2023-11-26 11:46:48,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:46:48,029 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2023-11-26 11:46:48,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 11:46:48,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:46:48,030 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:46:48,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:46:48,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:46:48,236 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:46:48,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:46:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash 119382209, now seen corresponding path program 1 times [2023-11-26 11:46:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:46:48,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682924039] [2023-11-26 11:46:48,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:46:48,238 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 [2023-11-26 11:46:48,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:46:48,239 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:46:48,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b078fef-4e1e-4ae7-be16-db4ffaaa7f91/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-26 11:46:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:46:48,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:46:48,417 INFO L285 TraceCheckSpWp]: Computing forward predicates...