./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.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_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya --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 c1488e8cfb75b9dc5828151c610bf861156ee926465c8d7b38aa1fb193fa6e77 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:08:14,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:08:14,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 07:08:14,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:08:14,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:08:14,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:08:14,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:08:14,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:08:14,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:08:14,962 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:08:14,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:08:14,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:08:14,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:08:14,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:08:14,964 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:08:14,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:08:14,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:08:14,966 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:08:14,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:08:14,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:08:14,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:08:14,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:08:14,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:08:14,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:08:14,969 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:08:14,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:08:14,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:08:14,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:08:14,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:08:14,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:08:14,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:08:14,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:08:14,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:08:14,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:08:14,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:08:14,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:08:14,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:08:14,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:08:14,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:08:14,973 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:08:14,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:08:14,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:08:14,973 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_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1488e8cfb75b9dc5828151c610bf861156ee926465c8d7b38aa1fb193fa6e77 [2023-11-29 07:08:15,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:08:15,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:08:15,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:08:15,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:08:15,252 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:08:15,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.i [2023-11-29 07:08:18,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:08:18,242 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:08:18,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.i [2023-11-29 07:08:18,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/data/71a4cb8e8/0ccdfdf065e64557a77ac2c845474954/FLAG351755b67 [2023-11-29 07:08:18,270 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/data/71a4cb8e8/0ccdfdf065e64557a77ac2c845474954 [2023-11-29 07:08:18,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:08:18,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:08:18,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:08:18,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:08:18,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:08:18,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e12afc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18, skipping insertion in model container [2023-11-29 07:08:18,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,335 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:08:18,460 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_d29f00b0-eb7f-465a-9914-135a0c310711/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.i[915,928] [2023-11-29 07:08:18,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:08:18,614 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:08:18,624 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_d29f00b0-eb7f-465a-9914-135a0c310711/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.i[915,928] [2023-11-29 07:08:18,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:08:18,710 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:08:18,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18 WrapperNode [2023-11-29 07:08:18,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:08:18,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:08:18,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:08:18,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:08:18,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,796 INFO L138 Inliner]: procedures = 26, calls = 69, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 494 [2023-11-29 07:08:18,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:08:18,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:08:18,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:08:18,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:08:18,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,844 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]. [2023-11-29 07:08:18,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,870 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:08:18,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:08:18,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:08:18,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:08:18,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (1/1) ... [2023-11-29 07:08:18,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:08:18,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:18,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:08:18,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:08:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:08:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:08:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:08:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:08:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:08:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:08:19,087 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:08:19,089 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:08:19,775 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:08:19,812 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:08:19,812 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:08:19,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:19 BoogieIcfgContainer [2023-11-29 07:08:19,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:08:19,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:08:19,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:08:19,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:08:19,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:08:18" (1/3) ... [2023-11-29 07:08:19,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270fcc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:19, skipping insertion in model container [2023-11-29 07:08:19,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:18" (2/3) ... [2023-11-29 07:08:19,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270fcc0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:19, skipping insertion in model container [2023-11-29 07:08:19,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:19" (3/3) ... [2023-11-29 07:08:19,821 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-3.i [2023-11-29 07:08:19,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:08:19,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 07:08:19,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:08:19,892 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;@12c4676b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:08:19,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 07:08:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 134 states have (on average 1.5522388059701493) internal successors, (208), 135 states have internal predecessors, (208), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-29 07:08:19,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 07:08:19,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:19,923 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:19,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:19,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:19,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1751269388, now seen corresponding path program 1 times [2023-11-29 07:08:19,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:19,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232444058] [2023-11-29 07:08:19,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:19,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:20,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232444058] [2023-11-29 07:08:20,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 07:08:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402923981] [2023-11-29 07:08:20,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:20,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:20,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:20,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:20,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:08:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:20,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 07:08:20,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:20,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2023-11-29 07:08:20,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:20,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402923981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:20,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:20,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:08:20,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757221198] [2023-11-29 07:08:20,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:20,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:08:20,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:20,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:08:20,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:08:20,667 INFO L87 Difference]: Start difference. First operand has 193 states, 134 states have (on average 1.5522388059701493) internal successors, (208), 135 states have internal predecessors, (208), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2023-11-29 07:08:20,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:20,731 INFO L93 Difference]: Finished difference Result 383 states and 694 transitions. [2023-11-29 07:08:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:08:20,734 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) Word has length 368 [2023-11-29 07:08:20,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:20,744 INFO L225 Difference]: With dead ends: 383 [2023-11-29 07:08:20,744 INFO L226 Difference]: Without dead ends: 191 [2023-11-29 07:08:20,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:08:20,753 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:20,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 311 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:08:20,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-29 07:08:20,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2023-11-29 07:08:20,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 133 states have (on average 1.518796992481203) internal successors, (202), 133 states have internal predecessors, (202), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-29 07:08:20,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 314 transitions. [2023-11-29 07:08:20,821 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 314 transitions. Word has length 368 [2023-11-29 07:08:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:20,821 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 314 transitions. [2023-11-29 07:08:20,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.5) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2023-11-29 07:08:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 314 transitions. [2023-11-29 07:08:20,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 07:08:20,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:20,833 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:20,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:08:21,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 07:08:21,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:21,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash 890874680, now seen corresponding path program 1 times [2023-11-29 07:08:21,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:21,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948632714] [2023-11-29 07:08:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:21,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:21,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:21,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558424027] [2023-11-29 07:08:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:21,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:21,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:21,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:21,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:08:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:21,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:08:21,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:21,584 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-11-29 07:08:21,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:21,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:21,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948632714] [2023-11-29 07:08:21,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:21,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558424027] [2023-11-29 07:08:21,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558424027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:21,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:21,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 07:08:21,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591587182] [2023-11-29 07:08:21,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:21,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:08:21,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:21,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:08:21,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:08:21,590 INFO L87 Difference]: Start difference. First operand 191 states and 314 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-11-29 07:08:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:22,186 INFO L93 Difference]: Finished difference Result 863 states and 1407 transitions. [2023-11-29 07:08:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:08:22,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 368 [2023-11-29 07:08:22,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:22,196 INFO L225 Difference]: With dead ends: 863 [2023-11-29 07:08:22,196 INFO L226 Difference]: Without dead ends: 673 [2023-11-29 07:08:22,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:08:22,200 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 729 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:22,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 1790 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 07:08:22,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-11-29 07:08:22,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 373. [2023-11-29 07:08:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 311 states have (on average 1.617363344051447) internal successors, (503), 312 states have internal predecessors, (503), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 07:08:22,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 621 transitions. [2023-11-29 07:08:22,263 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 621 transitions. Word has length 368 [2023-11-29 07:08:22,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:22,265 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 621 transitions. [2023-11-29 07:08:22,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-11-29 07:08:22,266 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 621 transitions. [2023-11-29 07:08:22,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-11-29 07:08:22,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:22,271 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:22,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 07:08:22,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 07:08:22,472 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:22,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1109729398, now seen corresponding path program 1 times [2023-11-29 07:08:22,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:22,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6176896] [2023-11-29 07:08:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:22,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:22,544 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:22,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410308100] [2023-11-29 07:08:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:22,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:22,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:22,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:22,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:08:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:22,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:08:22,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:22,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-11-29 07:08:22,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:22,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:22,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6176896] [2023-11-29 07:08:22,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:22,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410308100] [2023-11-29 07:08:22,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410308100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:22,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:22,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:08:22,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926958233] [2023-11-29 07:08:22,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:22,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:08:22,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:22,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:08:22,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:08:22,860 INFO L87 Difference]: Start difference. First operand 373 states and 621 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-11-29 07:08:23,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:23,171 INFO L93 Difference]: Finished difference Result 964 states and 1594 transitions. [2023-11-29 07:08:23,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:08:23,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 368 [2023-11-29 07:08:23,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:23,179 INFO L225 Difference]: With dead ends: 964 [2023-11-29 07:08:23,180 INFO L226 Difference]: Without dead ends: 592 [2023-11-29 07:08:23,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:08:23,182 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 378 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:23,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 838 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:08:23,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-11-29 07:08:23,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 373. [2023-11-29 07:08:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 311 states have (on average 1.617363344051447) internal successors, (503), 312 states have internal predecessors, (503), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 07:08:23,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 621 transitions. [2023-11-29 07:08:23,220 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 621 transitions. Word has length 368 [2023-11-29 07:08:23,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:23,221 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 621 transitions. [2023-11-29 07:08:23,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-11-29 07:08:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 621 transitions. [2023-11-29 07:08:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-29 07:08:23,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:23,224 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:23,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 07:08:23,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 07:08:23,425 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:23,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:23,425 INFO L85 PathProgramCache]: Analyzing trace with hash -455089684, now seen corresponding path program 1 times [2023-11-29 07:08:23,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:23,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193136524] [2023-11-29 07:08:23,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:23,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:23,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:23,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857576197] [2023-11-29 07:08:23,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:23,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:23,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:23,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:23,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:08:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:23,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:08:23,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:24,190 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1065 proven. 150 refuted. 0 times theorem prover too weak. 4945 trivial. 0 not checked. [2023-11-29 07:08:24,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:24,580 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 15 proven. 150 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-11-29 07:08:24,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:24,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193136524] [2023-11-29 07:08:24,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:24,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857576197] [2023-11-29 07:08:24,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857576197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:24,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:24,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 07:08:24,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677558837] [2023-11-29 07:08:24,583 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:24,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:08:24,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:24,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:08:24,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:08:24,586 INFO L87 Difference]: Start difference. First operand 373 states and 621 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 3 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2023-11-29 07:08:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:24,940 INFO L93 Difference]: Finished difference Result 749 states and 1242 transitions. [2023-11-29 07:08:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:08:24,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 3 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 369 [2023-11-29 07:08:24,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:24,946 INFO L225 Difference]: With dead ends: 749 [2023-11-29 07:08:24,946 INFO L226 Difference]: Without dead ends: 377 [2023-11-29 07:08:24,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:08:24,948 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 277 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:24,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 578 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:08:24,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-29 07:08:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 373. [2023-11-29 07:08:24,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 310 states have (on average 1.6) internal successors, (496), 311 states have internal predecessors, (496), 59 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 07:08:24,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 614 transitions. [2023-11-29 07:08:24,975 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 614 transitions. Word has length 369 [2023-11-29 07:08:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:24,977 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 614 transitions. [2023-11-29 07:08:24,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 3 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2023-11-29 07:08:24,977 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 614 transitions. [2023-11-29 07:08:24,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-29 07:08:24,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:24,982 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:24,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 07:08:25,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:25,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:25,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:25,189 INFO L85 PathProgramCache]: Analyzing trace with hash 377037548, now seen corresponding path program 1 times [2023-11-29 07:08:25,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:25,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803494333] [2023-11-29 07:08:25,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:25,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:25,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:25,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1583684039] [2023-11-29 07:08:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:25,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:25,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:25,249 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:25,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:08:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:25,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:08:25,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3182 proven. 231 refuted. 0 times theorem prover too weak. 2747 trivial. 0 not checked. [2023-11-29 07:08:26,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:27,118 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 93 proven. 234 refuted. 0 times theorem prover too weak. 5833 trivial. 0 not checked. [2023-11-29 07:08:27,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:27,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803494333] [2023-11-29 07:08:27,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:27,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583684039] [2023-11-29 07:08:27,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583684039] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:27,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:27,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 07:08:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659587252] [2023-11-29 07:08:27,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:27,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:08:27,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:27,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:08:27,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:08:27,123 INFO L87 Difference]: Start difference. First operand 373 states and 614 transitions. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 5 states have call successors, (99), 3 states have call predecessors, (99), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) [2023-11-29 07:08:27,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:27,748 INFO L93 Difference]: Finished difference Result 761 states and 1240 transitions. [2023-11-29 07:08:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:08:27,752 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 5 states have call successors, (99), 3 states have call predecessors, (99), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) Word has length 369 [2023-11-29 07:08:27,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:27,756 INFO L225 Difference]: With dead ends: 761 [2023-11-29 07:08:27,756 INFO L226 Difference]: Without dead ends: 389 [2023-11-29 07:08:27,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=352, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:08:27,759 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 641 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:27,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 706 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 07:08:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-11-29 07:08:27,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2023-11-29 07:08:27,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 319 states have (on average 1.5642633228840126) internal successors, (499), 320 states have internal predecessors, (499), 59 states have call successors, (59), 6 states have call predecessors, (59), 6 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 07:08:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 617 transitions. [2023-11-29 07:08:27,787 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 617 transitions. Word has length 369 [2023-11-29 07:08:27,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:27,788 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 617 transitions. [2023-11-29 07:08:27,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 5 states have call successors, (99), 3 states have call predecessors, (99), 7 states have return successors, (100), 5 states have call predecessors, (100), 5 states have call successors, (100) [2023-11-29 07:08:27,788 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 617 transitions. [2023-11-29 07:08:27,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-11-29 07:08:27,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:27,792 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:27,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 07:08:27,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:27,993 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:27,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:27,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1372812825, now seen corresponding path program 1 times [2023-11-29 07:08:27,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:27,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183359739] [2023-11-29 07:08:27,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:27,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:28,050 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:28,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418464927] [2023-11-29 07:08:28,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:28,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:28,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:28,052 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:28,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:08:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:28,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:08:28,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1729 proven. 138 refuted. 0 times theorem prover too weak. 4293 trivial. 0 not checked. [2023-11-29 07:08:28,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 27 proven. 138 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-11-29 07:08:28,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:28,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183359739] [2023-11-29 07:08:28,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:28,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418464927] [2023-11-29 07:08:28,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418464927] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:28,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:28,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 07:08:28,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528978786] [2023-11-29 07:08:28,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:28,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:08:28,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:28,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:08:28,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:08:28,985 INFO L87 Difference]: Start difference. First operand 385 states and 617 transitions. Second operand has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 3 states have call successors, (102), 2 states have call predecessors, (102), 4 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2023-11-29 07:08:29,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:29,524 INFO L93 Difference]: Finished difference Result 1078 states and 1725 transitions. [2023-11-29 07:08:29,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:08:29,525 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 3 states have call successors, (102), 2 states have call predecessors, (102), 4 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) Word has length 370 [2023-11-29 07:08:29,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:29,529 INFO L225 Difference]: With dead ends: 1078 [2023-11-29 07:08:29,529 INFO L226 Difference]: Without dead ends: 694 [2023-11-29 07:08:29,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:08:29,532 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 914 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:29,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 762 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:08:29,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-11-29 07:08:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 683. [2023-11-29 07:08:29,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 598 states have (on average 1.5735785953177257) internal successors, (941), 601 states have internal predecessors, (941), 73 states have call successors, (73), 11 states have call predecessors, (73), 11 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-29 07:08:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1087 transitions. [2023-11-29 07:08:29,561 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1087 transitions. Word has length 370 [2023-11-29 07:08:29,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:29,562 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 1087 transitions. [2023-11-29 07:08:29,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 3 states have call successors, (102), 2 states have call predecessors, (102), 4 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2023-11-29 07:08:29,563 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1087 transitions. [2023-11-29 07:08:29,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-11-29 07:08:29,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:29,567 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:29,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:08:29,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:29,768 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:29,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:29,768 INFO L85 PathProgramCache]: Analyzing trace with hash -472554341, now seen corresponding path program 1 times [2023-11-29 07:08:29,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:29,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699023105] [2023-11-29 07:08:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:29,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:29,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087905607] [2023-11-29 07:08:29,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:29,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:29,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:29,822 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:29,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:08:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:30,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 07:08:30,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 2013 proven. 132 refuted. 0 times theorem prover too weak. 4015 trivial. 0 not checked. [2023-11-29 07:08:31,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 33 proven. 132 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-11-29 07:08:32,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:32,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699023105] [2023-11-29 07:08:32,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:32,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087905607] [2023-11-29 07:08:32,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087905607] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:32,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:32,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2023-11-29 07:08:32,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361551670] [2023-11-29 07:08:32,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:32,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 07:08:32,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:32,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 07:08:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2023-11-29 07:08:32,027 INFO L87 Difference]: Start difference. First operand 683 states and 1087 transitions. Second operand has 25 states, 25 states have (on average 6.64) internal successors, (166), 25 states have internal predecessors, (166), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2023-11-29 07:08:38,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:38,616 INFO L93 Difference]: Finished difference Result 9759 states and 15417 transitions. [2023-11-29 07:08:38,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-11-29 07:08:38,617 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 6.64) internal successors, (166), 25 states have internal predecessors, (166), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 370 [2023-11-29 07:08:38,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:38,666 INFO L225 Difference]: With dead ends: 9759 [2023-11-29 07:08:38,666 INFO L226 Difference]: Without dead ends: 9077 [2023-11-29 07:08:38,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 723 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2777 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1662, Invalid=6710, Unknown=0, NotChecked=0, Total=8372 [2023-11-29 07:08:38,674 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 3782 mSDsluCounter, 8272 mSDsCounter, 0 mSdLazyCounter, 5132 mSolverCounterSat, 839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3806 SdHoareTripleChecker+Valid, 8704 SdHoareTripleChecker+Invalid, 5971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 839 IncrementalHoareTripleChecker+Valid, 5132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:38,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3806 Valid, 8704 Invalid, 5971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [839 Valid, 5132 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 07:08:38,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9077 states. [2023-11-29 07:08:38,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9077 to 1991. [2023-11-29 07:08:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1798 states have (on average 1.5189098998887653) internal successors, (2731), 1804 states have internal predecessors, (2731), 161 states have call successors, (161), 31 states have call predecessors, (161), 31 states have return successors, (161), 155 states have call predecessors, (161), 161 states have call successors, (161) [2023-11-29 07:08:38,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 3053 transitions. [2023-11-29 07:08:38,879 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 3053 transitions. Word has length 370 [2023-11-29 07:08:38,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:38,880 INFO L495 AbstractCegarLoop]: Abstraction has 1991 states and 3053 transitions. [2023-11-29 07:08:38,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.64) internal successors, (166), 25 states have internal predecessors, (166), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2023-11-29 07:08:38,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 3053 transitions. [2023-11-29 07:08:38,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-11-29 07:08:38,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:38,887 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:38,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:08:39,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:39,088 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:39,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:39,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1006756763, now seen corresponding path program 1 times [2023-11-29 07:08:39,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:39,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575635855] [2023-11-29 07:08:39,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:39,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:39,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:39,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907090972] [2023-11-29 07:08:39,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:39,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:39,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:39,133 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:39,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:08:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:39,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 07:08:39,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 2895 proven. 105 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2023-11-29 07:08:40,243 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 60 proven. 105 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-11-29 07:08:41,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:41,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575635855] [2023-11-29 07:08:41,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:41,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907090972] [2023-11-29 07:08:41,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907090972] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:41,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:41,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-29 07:08:41,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191095405] [2023-11-29 07:08:41,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:41,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 07:08:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:41,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 07:08:41,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:08:41,038 INFO L87 Difference]: Start difference. First operand 1991 states and 3053 transitions. Second operand has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2023-11-29 07:08:43,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:43,475 INFO L93 Difference]: Finished difference Result 9017 states and 13771 transitions. [2023-11-29 07:08:43,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 07:08:43,476 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) Word has length 370 [2023-11-29 07:08:43,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:43,503 INFO L225 Difference]: With dead ends: 9017 [2023-11-29 07:08:43,503 INFO L226 Difference]: Without dead ends: 6931 [2023-11-29 07:08:43,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 763 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=425, Invalid=1135, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 07:08:43,507 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 2374 mSDsluCounter, 3570 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 3861 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:43,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 3861 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 07:08:43,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2023-11-29 07:08:43,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 1911. [2023-11-29 07:08:43,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1670 states have (on average 1.5) internal successors, (2505), 1674 states have internal predecessors, (2505), 203 states have call successors, (203), 37 states have call predecessors, (203), 37 states have return successors, (203), 199 states have call predecessors, (203), 203 states have call successors, (203) [2023-11-29 07:08:43,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2911 transitions. [2023-11-29 07:08:43,670 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2911 transitions. Word has length 370 [2023-11-29 07:08:43,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:43,670 INFO L495 AbstractCegarLoop]: Abstraction has 1911 states and 2911 transitions. [2023-11-29 07:08:43,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 4 states have call successors, (112), 3 states have call predecessors, (112), 5 states have return successors, (112), 4 states have call predecessors, (112), 4 states have call successors, (112) [2023-11-29 07:08:43,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2911 transitions. [2023-11-29 07:08:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-29 07:08:43,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:43,674 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:43,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:08:43,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:43,876 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:43,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:43,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1522752075, now seen corresponding path program 1 times [2023-11-29 07:08:43,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:43,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089086648] [2023-11-29 07:08:43,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:43,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:43,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:43,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196964755] [2023-11-29 07:08:43,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:43,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:43,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:43,925 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:43,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 07:08:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:44,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:08:44,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1676 proven. 288 refuted. 0 times theorem prover too weak. 4196 trivial. 0 not checked. [2023-11-29 07:08:44,898 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:45,787 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 36 proven. 291 refuted. 0 times theorem prover too weak. 5833 trivial. 0 not checked. [2023-11-29 07:08:45,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:45,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089086648] [2023-11-29 07:08:45,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:45,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196964755] [2023-11-29 07:08:45,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196964755] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:45,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:45,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-29 07:08:45,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379113240] [2023-11-29 07:08:45,789 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:45,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 07:08:45,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:45,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 07:08:45,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:08:45,792 INFO L87 Difference]: Start difference. First operand 1911 states and 2911 transitions. Second operand has 24 states, 24 states have (on average 6.375) internal successors, (153), 24 states have internal predecessors, (153), 5 states have call successors, (107), 3 states have call predecessors, (107), 7 states have return successors, (108), 5 states have call predecessors, (108), 5 states have call successors, (108) [2023-11-29 07:08:48,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:48,080 INFO L93 Difference]: Finished difference Result 7970 states and 12254 transitions. [2023-11-29 07:08:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 07:08:48,081 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.375) internal successors, (153), 24 states have internal predecessors, (153), 5 states have call successors, (107), 3 states have call predecessors, (107), 7 states have return successors, (108), 5 states have call predecessors, (108), 5 states have call successors, (108) Word has length 371 [2023-11-29 07:08:48,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:48,104 INFO L225 Difference]: With dead ends: 7970 [2023-11-29 07:08:48,104 INFO L226 Difference]: Without dead ends: 6191 [2023-11-29 07:08:48,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=768, Invalid=2202, Unknown=0, NotChecked=0, Total=2970 [2023-11-29 07:08:48,109 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 2660 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:48,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2666 Valid, 2222 Invalid, 2309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 07:08:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2023-11-29 07:08:48,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 2012. [2023-11-29 07:08:48,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 1762 states have (on average 1.5085130533484676) internal successors, (2658), 1766 states have internal predecessors, (2658), 203 states have call successors, (203), 46 states have call predecessors, (203), 46 states have return successors, (203), 199 states have call predecessors, (203), 203 states have call successors, (203) [2023-11-29 07:08:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 3064 transitions. [2023-11-29 07:08:48,299 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 3064 transitions. Word has length 371 [2023-11-29 07:08:48,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:48,300 INFO L495 AbstractCegarLoop]: Abstraction has 2012 states and 3064 transitions. [2023-11-29 07:08:48,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.375) internal successors, (153), 24 states have internal predecessors, (153), 5 states have call successors, (107), 3 states have call predecessors, (107), 7 states have return successors, (108), 5 states have call predecessors, (108), 5 states have call successors, (108) [2023-11-29 07:08:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 3064 transitions. [2023-11-29 07:08:48,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-29 07:08:48,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:48,305 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:48,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 07:08:48,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:48,505 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:48,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:48,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1507233357, now seen corresponding path program 1 times [2023-11-29 07:08:48,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:48,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405098959] [2023-11-29 07:08:48,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:48,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:48,546 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:48,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390121760] [2023-11-29 07:08:48,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:48,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:48,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:48,548 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:48,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 07:08:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:48,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 07:08:48,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:49,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3235 proven. 330 refuted. 0 times theorem prover too weak. 2595 trivial. 0 not checked. [2023-11-29 07:08:49,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:50,911 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 147 proven. 339 refuted. 0 times theorem prover too weak. 5674 trivial. 0 not checked. [2023-11-29 07:08:50,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:50,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405098959] [2023-11-29 07:08:50,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:50,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390121760] [2023-11-29 07:08:50,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390121760] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:08:50,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:08:50,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2023-11-29 07:08:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302992616] [2023-11-29 07:08:50,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:50,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 07:08:50,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:50,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 07:08:50,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-11-29 07:08:50,916 INFO L87 Difference]: Start difference. First operand 2012 states and 3064 transitions. Second operand has 25 states, 24 states have (on average 6.583333333333333) internal successors, (158), 23 states have internal predecessors, (158), 6 states have call successors, (100), 4 states have call predecessors, (100), 9 states have return successors, (101), 6 states have call predecessors, (101), 6 states have call successors, (101) [2023-11-29 07:08:52,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:52,283 INFO L93 Difference]: Finished difference Result 4571 states and 6980 transitions. [2023-11-29 07:08:52,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 07:08:52,284 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.583333333333333) internal successors, (158), 23 states have internal predecessors, (158), 6 states have call successors, (100), 4 states have call predecessors, (100), 9 states have return successors, (101), 6 states have call predecessors, (101), 6 states have call successors, (101) Word has length 371 [2023-11-29 07:08:52,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:52,293 INFO L225 Difference]: With dead ends: 4571 [2023-11-29 07:08:52,294 INFO L226 Difference]: Without dead ends: 2705 [2023-11-29 07:08:52,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 716 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=570, Invalid=1410, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 07:08:52,299 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1126 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:52,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1561 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:08:52,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2023-11-29 07:08:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2100. [2023-11-29 07:08:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 1846 states have (on average 1.5016251354279524) internal successors, (2772), 1850 states have internal predecessors, (2772), 203 states have call successors, (203), 50 states have call predecessors, (203), 50 states have return successors, (203), 199 states have call predecessors, (203), 203 states have call successors, (203) [2023-11-29 07:08:52,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 3178 transitions. [2023-11-29 07:08:52,485 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 3178 transitions. Word has length 371 [2023-11-29 07:08:52,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:52,486 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 3178 transitions. [2023-11-29 07:08:52,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.583333333333333) internal successors, (158), 23 states have internal predecessors, (158), 6 states have call successors, (100), 4 states have call predecessors, (100), 9 states have return successors, (101), 6 states have call predecessors, (101), 6 states have call successors, (101) [2023-11-29 07:08:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 3178 transitions. [2023-11-29 07:08:52,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-11-29 07:08:52,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:52,491 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:52,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 07:08:52,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 07:08:52,692 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 07:08:52,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:52,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1308422835, now seen corresponding path program 1 times [2023-11-29 07:08:52,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:52,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553966899] [2023-11-29 07:08:52,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:52,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:52,736 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:52,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280550288] [2023-11-29 07:08:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:52,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:52,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:52,738 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:52,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 07:08:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:53,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-29 07:08:53,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:21,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 4101 proven. 633 refuted. 0 times theorem prover too weak. 1426 trivial. 0 not checked. [2023-11-29 07:09:21,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:00,857 WARN L854 $PredicateComparison]: unable to prove that (or (= c_~last_1_var_1_32~0 |c_ULTIMATE.start_step_~stepLocal_6~0#1|) (let ((.cse6 (mod c_~var_1_21~0 65536)) (.cse1 (mod c_~var_1_54~0 256))) (let ((.cse21 (mod c_~var_1_4~0 256)) (.cse8 (+ .cse1 1)) (.cse24 (div .cse6 c_~var_1_8~0)) (.cse13 (mod c_~var_1_60~0 256))) (let ((.cse12 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) (.cse14 (+ 1 .cse13)) (.cse11 (not (= .cse24 .cse13))) (.cse15 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse6 v_~var_1_32~0_25) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) (.cse16 (< .cse1 .cse13)) (.cse0 (< 0 (+ c_~var_1_8~0 1))) (.cse9 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse7 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse6 v_~var_1_32~0_25) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse5 (< c_~var_1_8~0 0)) (.cse3 (not (= .cse24 .cse1))) (.cse10 (< .cse13 .cse8)) (.cse17 (* 65535 .cse21))) (and (or (let ((.cse2 (mod (+ c_~var_1_33~0 .cse17 (* c_~var_1_9~0 65535)) 65536))) (let ((.cse4 (< .cse2 32768))) (and (or (and (or .cse0 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse2))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse2))) .cse3)) (or .cse4 (and (or .cse5 (and (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= .cse1 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse7)) (or .cse0 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse8)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse9 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))))))) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse2))) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse6 v_~var_1_32~0_25) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse2))) .cse3) .cse5)) .cse10) (or (and (or (and .cse11 (or (and .cse12 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse4) (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) (or .cse4 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse2) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse0) (or (and .cse11 (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) .cse15 (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse2) (not (= (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1) .cse13)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)))) .cse4) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse2) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse5)) .cse16)))) (let ((.cse20 (div c_~var_1_9~0 .cse21)) (.cse19 (+ c_~var_1_9~0 1)) (.cse18 (= (mod c_~var_1_9~0 .cse21) 0))) (and (or .cse18 (< 0 .cse19) (not (= (+ 1 .cse20) c_~var_1_8~0))) (or (not (= c_~var_1_8~0 .cse20)) (and (<= .cse19 0) (not .cse18)))))) (or (not (= c_~var_1_8~0 (div 0 .cse21))) (let ((.cse23 (mod (+ c_~var_1_33~0 .cse17) 65536))) (let ((.cse22 (< .cse23 32768))) (and (or (and (or .cse0 (and .cse11 (or .cse22 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) .cse12)) (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) (or .cse22 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse23) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))))) (or (and .cse11 (or (and .cse15 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse23) (< 0 (+ v_~var_1_32~0_25 1)) (not (= (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1) .cse13)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse23) (< .cse6 v_~var_1_32~0_25) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse22) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13)))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse13))))) .cse5)) .cse16) (or (and (or (and (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse3) .cse0) (or .cse22 (and (or .cse0 (and (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse23) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse8)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse9 .cse3)) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse23) (< .cse6 v_~var_1_32~0_25) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse23) (< 0 (+ v_~var_1_32~0_25 1)) (not (= .cse1 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse3 .cse7) .cse5))) (or .cse5 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse3 (forall ((v_~var_1_32~0_25 Int)) (or (< .cse6 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse23) (not (= .cse1 (div v_~var_1_32~0_25 c_~var_1_8~0)))))))) .cse10)))))))))) is different from false [2023-11-29 07:10:41,067 WARN L293 SmtUtils]: Spent 12.74s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:10:56,576 WARN L876 $PredicateComparison]: unable to prove that (or (= c_~last_1_var_1_32~0 |c_ULTIMATE.start_step_~stepLocal_6~0#1|) (= c_~var_1_9~0 0) (let ((.cse7 (mod c_~var_1_21~0 65536)) (.cse2 (mod c_~var_1_54~0 256))) (let ((.cse0 (mod c_~var_1_4~0 256)) (.cse14 (mod c_~var_1_60~0 256)) (.cse9 (+ .cse2 1)) (.cse21 (div .cse7 c_~var_1_8~0))) (let ((.cse10 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse8 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse7 v_~var_1_32~0_25) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse4 (not (= .cse21 .cse2))) (.cse11 (< .cse14 .cse9)) (.cse1 (< 0 (+ c_~var_1_8~0 1))) (.cse13 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) (.cse15 (+ 1 .cse14)) (.cse12 (not (= .cse21 .cse14))) (.cse16 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse7 v_~var_1_32~0_25) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) (.cse6 (< c_~var_1_8~0 0)) (.cse17 (< .cse2 .cse14)) (.cse18 (* 65535 .cse0))) (and (or (not (= c_~var_1_8~0 (div c_~var_1_9~0 .cse0))) (let ((.cse3 (mod (+ c_~var_1_33~0 .cse18 (* c_~var_1_9~0 65535)) 65536))) (let ((.cse5 (< .cse3 32768))) (and (or (and (or .cse1 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse3))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse3))) .cse4)) (or .cse5 (and (or .cse6 (and (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= .cse2 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse7 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse8)) (or .cse1 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse9)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse10 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))))))))) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse7 v_~var_1_32~0_25) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse3))) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse7 v_~var_1_32~0_25) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse3))) .cse4) .cse6)) .cse11) (or (and (or (and .cse12 (or (and .cse13 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse5) (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse3) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) (or .cse5 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse3) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse15))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse3) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse1) (or (and .cse12 (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse7 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) .cse16 (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1) .cse14)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)))) .cse5) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse7 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse7 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse6)) .cse17))))) (or (not (= c_~var_1_8~0 (div 0 .cse0))) (let ((.cse19 (mod (+ c_~var_1_33~0 .cse18) 65536))) (let ((.cse20 (< .cse19 32768))) (and (or (and (or (and (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse19) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse19) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse4) .cse1) (or .cse20 (and (or .cse1 (and (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse9)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse19) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse10)) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse19) (< .cse7 v_~var_1_32~0_25) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse19) (< 0 (+ v_~var_1_32~0_25 1)) (not (= .cse2 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse8) .cse6))) (or .cse6 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse7 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse19) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse4 (forall ((v_~var_1_32~0_25 Int)) (or (< .cse7 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse19) (not (= .cse2 (div v_~var_1_32~0_25 c_~var_1_8~0)))))))) .cse11) (or (and (or .cse1 (and .cse12 (or .cse20 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) .cse13)) (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) (or .cse20 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse19) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse15))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))))) (or (and .cse12 (or (and .cse16 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse19) (< 0 (+ v_~var_1_32~0_25 1)) (not (= (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1) .cse14)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse19) (< .cse7 v_~var_1_32~0_25) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse20) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse7 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse7 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse6)) .cse17))))))))) (< c_~var_1_9~0 0)) is different from true [2023-11-29 07:12:00,915 WARN L293 SmtUtils]: Spent 18.29s on a formula simplification that was a NOOP. DAG size: 200 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:12:16,439 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~var_1_21~0 65536)) (.cse1 (mod c_~var_1_4~0 256))) (or (= .cse0 0) (= c_~var_1_9~0 0) (let ((.cse3 (mod c_~var_1_54~0 256))) (let ((.cse14 (mod c_~var_1_60~0 256)) (.cse9 (+ .cse3 1)) (.cse21 (div .cse0 c_~var_1_8~0))) (let ((.cse10 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse8 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse0 v_~var_1_32~0_25) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse5 (not (= .cse21 .cse3))) (.cse11 (< .cse14 .cse9)) (.cse2 (< 0 (+ c_~var_1_8~0 1))) (.cse13 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) (.cse15 (+ 1 .cse14)) (.cse12 (not (= .cse21 .cse14))) (.cse16 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse0 v_~var_1_32~0_25) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) (.cse7 (< c_~var_1_8~0 0)) (.cse17 (< .cse3 .cse14)) (.cse18 (* 65535 .cse1))) (and (or (not (= c_~var_1_8~0 (div c_~var_1_9~0 .cse1))) (let ((.cse4 (mod (+ c_~var_1_33~0 .cse18 (* c_~var_1_9~0 65535)) 65536))) (let ((.cse6 (< .cse4 32768))) (and (or (and (or .cse2 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse4))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse4))) .cse5)) (or .cse6 (and (or .cse7 (and (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse4) (not (= .cse3 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse4) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse8)) (or .cse2 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse9)) (< (+ 65536 v_~var_1_32~0_25) .cse4) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse10 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse4) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))))))))) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse4))) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse0 v_~var_1_32~0_25) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse4))) .cse5) .cse7)) .cse11) (or (and (or (and .cse12 (or (and .cse13 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse4) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse6) (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse4) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) (or .cse6 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse4) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse15))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse4) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse2) (or (and .cse12 (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse4) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) .cse16 (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse4) (not (= (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1) .cse14)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)))) .cse6) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse4) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse4) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse7)) .cse17))))) (or (not (= c_~var_1_8~0 (div 0 .cse1))) (let ((.cse19 (mod (+ c_~var_1_33~0 .cse18) 65536))) (let ((.cse20 (< .cse19 32768))) (and (or (and (or (and (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse19) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse19) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse5) .cse2) (or .cse20 (and (or .cse2 (and (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse9)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse19) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse10)) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse19) (< .cse0 v_~var_1_32~0_25) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse19) (< 0 (+ v_~var_1_32~0_25 1)) (not (= .cse3 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse8) .cse7))) (or .cse7 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse19) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse5 (forall ((v_~var_1_32~0_25 Int)) (or (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse19) (not (= .cse3 (div v_~var_1_32~0_25 c_~var_1_8~0)))))))) .cse11) (or (and (or .cse2 (and .cse12 (or .cse20 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) .cse13)) (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) (or .cse20 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse19) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse15))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))))) (or (and .cse12 (or (and .cse16 (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse19) (< 0 (+ v_~var_1_32~0_25 1)) (not (= (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1) .cse14)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse19) (< .cse0 v_~var_1_32~0_25) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse20) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14)))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse19) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse14))))) .cse7)) .cse17))))))))) (< c_~var_1_9~0 0) (= (+ c_~last_1_var_1_32~0 .cse1 1) 0))) is different from true [2023-11-29 07:13:59,691 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 (mod c_~var_1_4~0 256)) (.cse0 (mod c_~var_1_21~0 65536))) (or (= .cse0 0) (= c_~var_1_9~0 0) (< c_~var_1_9~0 0) (= (+ c_~last_1_var_1_32~0 .cse1 1) 0) (let ((.cse37 (div .cse0 c_~var_1_8~0))) (let ((.cse4 (mod c_~var_1_54~0 256)) (.cse38 (< .cse37 0)) (.cse39 (< .cse37 |c_ULTIMATE.start_step_~stepLocal_14~0#1|))) (let ((.cse19 (or .cse38 .cse39)) (.cse22 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse41 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< v_~var_1_32~0_25 0) (< .cse41 0) (< .cse41 |c_ULTIMATE.start_step_~stepLocal_14~0#1|))))) (.cse24 (+ |c_ULTIMATE.start_step_~stepLocal_14~0#1| 1)) (.cse8 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse40 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< v_~var_1_32~0_25 0) (< .cse40 0) (< .cse0 v_~var_1_32~0_25) (< .cse40 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse40))))) (.cse5 (or (< .cse4 .cse37) .cse38 .cse39)) (.cse12 (< 255 |c_ULTIMATE.start_step_~stepLocal_14~0#1|)) (.cse17 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (< .cse0 v_~var_1_32~0_25) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse14 (< 0 (+ c_~var_1_8~0 1))) (.cse15 (+ .cse4 1)) (.cse16 (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 0) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0)))))) (.cse13 (not (= .cse37 .cse4))) (.cse11 (< c_~var_1_8~0 0)) (.cse18 (< 254 .cse4)) (.cse26 (* 65535 .cse1))) (and (or (not (= c_~var_1_8~0 (div 0 .cse1))) (let ((.cse3 (mod (+ c_~var_1_33~0 .cse26) 65536))) (let ((.cse10 (< .cse3 32768))) (and (or (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse2 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse2 0) (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (< .cse2 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse2)))) .cse5 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse6 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse6 0) (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (< .cse6 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse6)))) (or (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse7 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (< .cse7 0) (< .cse0 v_~var_1_32~0_25) (< .cse7 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse7)))) .cse8 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse9 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (or (< (+ 65536 v_~var_1_32~0_25) .cse3) (< 0 (+ v_~var_1_32~0_25 1)) (< .cse9 0) (< .cse9 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse9) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))))) .cse10)) .cse11) (or .cse12 (and (or (and (forall ((v_~var_1_32~0_25 Int)) (or (< v_~var_1_32~0_25 .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< v_~var_1_32~0_25 .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse13) .cse14) (or .cse10 (and (or .cse14 (and (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse15)) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse16)) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (< .cse0 v_~var_1_32~0_25) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) (forall ((v_~var_1_32~0_25 Int)) (or (< (+ 65536 v_~var_1_32~0_25) .cse3) (< 0 (+ v_~var_1_32~0_25 1)) (not (= .cse4 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse17) .cse11))) (or .cse11 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse13 (forall ((v_~var_1_32~0_25 Int)) (or (< .cse0 v_~var_1_32~0_25) (< v_~var_1_32~0_25 .cse3) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0)))))))) .cse18) (or .cse14 (and .cse19 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse20 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse20 0) (< v_~var_1_32~0_25 .cse3) (< .cse20 |c_ULTIMATE.start_step_~stepLocal_14~0#1|)))) (or .cse10 (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse21 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse3) (< .cse21 0) (< .cse21 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse21)))) .cse22)) (or .cse10 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse23 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< (+ 65536 v_~var_1_32~0_25) .cse3) (< .cse23 1) (< .cse23 .cse24) (< .cse15 .cse23) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))))) (forall ((v_~var_1_32~0_25 Int)) (let ((.cse25 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse25 0) (< v_~var_1_32~0_25 .cse3) (< .cse25 |c_ULTIMATE.start_step_~stepLocal_14~0#1|)))))))))) (or (not (= c_~var_1_8~0 (div c_~var_1_9~0 .cse1))) (let ((.cse28 (mod (+ c_~var_1_33~0 .cse26 (* c_~var_1_9~0 65535)) 65536))) (let ((.cse30 (< .cse28 32768))) (and (or .cse14 (and .cse19 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse27 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse27 0) (< .cse27 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< v_~var_1_32~0_25 .cse28)))) (forall ((v_~var_1_32~0_25 Int)) (let ((.cse29 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse29 0) (< .cse29 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< v_~var_1_32~0_25 .cse28)))) (or .cse30 (and .cse22 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse31 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse31 0) (< .cse31 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< (+ 65536 v_~var_1_32~0_25) .cse28) (< .cse4 .cse31)))))) (or (forall ((v_~var_1_32~0_25 Int)) (let ((.cse32 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse32 1) (< .cse32 .cse24) (< (+ 65536 v_~var_1_32~0_25) .cse28) (< .cse15 .cse32) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)))) .cse30))) (or .cse11 (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse33 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (< .cse33 0) (< .cse0 v_~var_1_32~0_25) (< .cse33 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< v_~var_1_32~0_25 .cse28) (< .cse4 .cse33)))) (or (and (forall ((v_~var_1_32~0_25 Int)) (let ((.cse34 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (or (< 0 (+ v_~var_1_32~0_25 1)) (< .cse34 0) (< (+ 65536 v_~var_1_32~0_25) .cse28) (< .cse34 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< .cse4 .cse34) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)))) (forall ((v_~var_1_32~0_25 Int)) (let ((.cse35 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse35 0) (< .cse0 v_~var_1_32~0_25) (< .cse35 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< (+ 65536 v_~var_1_32~0_25) .cse28) (< .cse4 .cse35)))) .cse8) .cse30) .cse5 (forall ((v_~var_1_32~0_25 Int)) (let ((.cse36 (div v_~var_1_32~0_25 c_~var_1_8~0))) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse36 0) (< .cse0 v_~var_1_32~0_25) (< .cse36 |c_ULTIMATE.start_step_~stepLocal_14~0#1|) (< v_~var_1_32~0_25 .cse28) (< .cse4 .cse36)))))) (or .cse12 (and (or .cse14 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse28))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse28))) .cse13)) (or .cse30 (and (or .cse11 (and (forall ((v_~var_1_32~0_25 Int)) (or (< 0 (+ v_~var_1_32~0_25 1)) (< (+ 65536 v_~var_1_32~0_25) .cse28) (not (= .cse4 (+ (div v_~var_1_32~0_25 c_~var_1_8~0) 1))) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (< (+ 65536 v_~var_1_32~0_25) .cse28) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))) .cse17)) (or .cse14 (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (div v_~var_1_32~0_25 c_~var_1_8~0) .cse15)) (< (+ 65536 v_~var_1_32~0_25) .cse28) (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0))) .cse16 (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< (+ 65536 v_~var_1_32~0_25) .cse28) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))))))))) (or (and (forall ((v_~var_1_32~0_25 Int)) (or (not (= (mod v_~var_1_32~0_25 c_~var_1_8~0) 0)) (< .cse0 v_~var_1_32~0_25) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse28))) (forall ((v_~var_1_32~0_25 Int)) (or (< .cse0 v_~var_1_32~0_25) (not (= .cse4 (div v_~var_1_32~0_25 c_~var_1_8~0))) (< v_~var_1_32~0_25 .cse28))) .cse13) .cse11)) .cse18))))))))))) is different from true [2023-11-29 07:15:25,719 WARN L293 SmtUtils]: Spent 25.83s on a formula simplification that was a NOOP. DAG size: 185 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:16:38,775 WARN L293 SmtUtils]: Spent 24.69s on a formula simplification that was a NOOP. DAG size: 186 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:17:46,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:17:46,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553966899] [2023-11-29 07:17:46,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:17:46,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280550288] [2023-11-29 07:17:46,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280550288] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:17:46,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:17:46,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2023-11-29 07:17:46,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668167752] [2023-11-29 07:17:46,097 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:17:46,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 07:17:46,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:17:46,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 07:17:46,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1242, Unknown=19, NotChecked=308, Total=1806 [2023-11-29 07:17:46,100 INFO L87 Difference]: Start difference. First operand 2100 states and 3178 transitions. Second operand has 29 states, 29 states have (on average 4.379310344827586) internal successors, (127), 27 states have internal predecessors, (127), 7 states have call successors, (56), 7 states have call predecessors, (56), 12 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-11-29 07:18:22,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:18:45,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:19:09,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:19:14,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:19:18,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:19:23,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:19:47,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:01,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:03,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:07,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:12,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:16,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:20,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:24,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:28,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:38,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:54,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:58,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:02,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:07,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:11,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:15,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:26,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:39,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:46,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:50,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:55,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:21:58,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:03,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:07,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:11,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:15,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:19,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:23,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:33,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:37,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:42,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:46,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:51,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:22:56,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:23:00,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:23:05,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:23:05,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 139 [2023-11-29 07:23:05,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 07:23:05,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 423.4s TimeCoverageRelationStatistics Valid=689, Invalid=3208, Unknown=25, NotChecked=500, Total=4422 [2023-11-29 07:23:05,697 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 80 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 126 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 171.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:23:05,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 496 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1183 Invalid, 39 Unknown, 0 Unchecked, 181.2s Time] [2023-11-29 07:23:05,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 07:23:05,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 07:23:05,898 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:915) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:789) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:377) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:247) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 47 more [2023-11-29 07:23:05,902 INFO L158 Benchmark]: Toolchain (without parser) took 887627.77ms. Allocated memory was 146.8MB in the beginning and 469.8MB in the end (delta: 323.0MB). Free memory was 105.0MB in the beginning and 173.1MB in the end (delta: -68.1MB). Peak memory consumption was 256.9MB. Max. memory is 16.1GB. [2023-11-29 07:23:05,902 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 146.8MB. Free memory is still 118.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:23:05,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.67ms. Allocated memory is still 146.8MB. Free memory was 104.6MB in the beginning and 80.5MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 07:23:05,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.93ms. Allocated memory is still 146.8MB. Free memory was 80.5MB in the beginning and 71.5MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 07:23:05,904 INFO L158 Benchmark]: Boogie Preprocessor took 95.60ms. Allocated memory is still 146.8MB. Free memory was 71.5MB in the beginning and 58.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 07:23:05,904 INFO L158 Benchmark]: RCFGBuilder took 919.60ms. Allocated memory was 146.8MB in the beginning and 224.4MB in the end (delta: 77.6MB). Free memory was 58.9MB in the beginning and 140.2MB in the end (delta: -81.3MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2023-11-29 07:23:05,905 INFO L158 Benchmark]: TraceAbstraction took 886085.58ms. Allocated memory was 224.4MB in the beginning and 469.8MB in the end (delta: 245.4MB). Free memory was 139.1MB in the beginning and 173.1MB in the end (delta: -34.0MB). Peak memory consumption was 211.9MB. Max. memory is 16.1GB. [2023-11-29 07:23:05,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 146.8MB. Free memory is still 118.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.67ms. Allocated memory is still 146.8MB. Free memory was 104.6MB in the beginning and 80.5MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.93ms. Allocated memory is still 146.8MB. Free memory was 80.5MB in the beginning and 71.5MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.60ms. Allocated memory is still 146.8MB. Free memory was 71.5MB in the beginning and 58.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 919.60ms. Allocated memory was 146.8MB in the beginning and 224.4MB in the end (delta: 77.6MB). Free memory was 58.9MB in the beginning and 140.2MB in the end (delta: -81.3MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * TraceAbstraction took 886085.58ms. Allocated memory was 224.4MB in the beginning and 469.8MB in the end (delta: 245.4MB). Free memory was 139.1MB in the beginning and 173.1MB in the end (delta: -34.0MB). Peak memory consumption was 211.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya --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 c1488e8cfb75b9dc5828151c610bf861156ee926465c8d7b38aa1fb193fa6e77 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:23:07,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:23:07,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 07:23:08,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:23:08,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:23:08,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:23:08,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:23:08,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:23:08,042 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:23:08,042 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:23:08,043 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:23:08,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:23:08,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:23:08,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:23:08,045 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:23:08,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:23:08,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:23:08,047 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:23:08,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:23:08,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:23:08,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:23:08,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:23:08,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:23:08,052 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 07:23:08,052 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 07:23:08,052 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 07:23:08,053 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:23:08,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:23:08,053 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:23:08,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:23:08,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:23:08,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:23:08,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:23:08,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:23:08,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:23:08,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:23:08,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:23:08,056 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 07:23:08,056 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 07:23:08,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:23:08,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:23:08,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:23:08,057 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:23:08,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:23:08,058 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 07:23:08,058 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f00b0-eb7f-465a-9914-135a0c310711/bin/uautomizer-verify-BQ2R08f2Ya/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