./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ --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 8c5f43b3e9ff1d4598a5a525fe9e716f863331c4c517b4b8adb0491943243286 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:32:21,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:32:21,772 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:32:21,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:32:21,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:32:21,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:32:21,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:32:21,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:32:21,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:32:21,826 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:32:21,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:32:21,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:32:21,828 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:32:21,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:32:21,830 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:32:21,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:32:21,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:32:21,832 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:32:21,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:32:21,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:32:21,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:32:21,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:32:21,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:32:21,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:32:21,835 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:32:21,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:32:21,836 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:32:21,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:32:21,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:32:21,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:32:21,840 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:32:21,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:32:21,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:32:21,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:32:21,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:32:21,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:32:21,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:32:21,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:32:21,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:32:21,843 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:32:21,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:32:21,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:32:21,844 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_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c5f43b3e9ff1d4598a5a525fe9e716f863331c4c517b4b8adb0491943243286 [2023-11-23 22:32:22,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:32:22,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:32:22,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:32:22,216 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:32:22,217 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:32:22,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c [2023-11-23 22:32:25,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:32:25,571 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:32:25,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c [2023-11-23 22:32:25,580 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/data/5fe35ee44/78d42a61913842299034aaf3c9502917/FLAGb17663609 [2023-11-23 22:32:25,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/data/5fe35ee44/78d42a61913842299034aaf3c9502917 [2023-11-23 22:32:25,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:32:25,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:32:25,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:32:25,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:32:25,610 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:32:25,611 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,612 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bea8b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25, skipping insertion in model container [2023-11-23 22:32:25,612 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,634 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:32:25,806 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_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c[319,332] [2023-11-23 22:32:25,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:32:25,832 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:32:25,845 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_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c[319,332] [2023-11-23 22:32:25,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:32:25,863 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:32:25,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25 WrapperNode [2023-11-23 22:32:25,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:32:25,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:32:25,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:32:25,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:32:25,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,905 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2023-11-23 22:32:25,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:32:25,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:32:25,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:32:25,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:32:25,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,918 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,927 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:32:25,927 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:32:25,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:32:25,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:32:25,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:32:25,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (1/1) ... [2023-11-23 22:32:25,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:32:25,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:25,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:32:26,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:32:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:32:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:32:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:32:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:32:26,082 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:32:26,084 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:32:26,190 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:32:26,217 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:32:26,218 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:32:26,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:32:26 BoogieIcfgContainer [2023-11-23 22:32:26,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:32:26,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:32:26,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:32:26,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:32:26,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:32:25" (1/3) ... [2023-11-23 22:32:26,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa5bad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:32:26, skipping insertion in model container [2023-11-23 22:32:26,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:25" (2/3) ... [2023-11-23 22:32:26,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa5bad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:32:26, skipping insertion in model container [2023-11-23 22:32:26,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:32:26" (3/3) ... [2023-11-23 22:32:26,238 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_10.c [2023-11-23 22:32:26,261 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:32:26,261 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:32:26,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:32:26,321 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;@7643021c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:32:26,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:32:26,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:26,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 22:32:26,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:26,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:32:26,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:32:26,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:26,340 INFO L85 PathProgramCache]: Analyzing trace with hash 63417192, now seen corresponding path program 1 times [2023-11-23 22:32:26,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:26,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045858431] [2023-11-23 22:32:26,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:26,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:26,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:26,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:26,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045858431] [2023-11-23 22:32:26,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045858431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:26,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:26,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:32:26,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648525307] [2023-11-23 22:32:26,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:26,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:32:26,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:26,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:32:26,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:32:26,553 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:26,585 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2023-11-23 22:32:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:32:26,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 22:32:26,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:26,596 INFO L225 Difference]: With dead ends: 16 [2023-11-23 22:32:26,597 INFO L226 Difference]: Without dead ends: 8 [2023-11-23 22:32:26,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:32:26,604 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:26,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:32:26,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-23 22:32:26,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-23 22:32:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2023-11-23 22:32:26,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2023-11-23 22:32:26,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:26,635 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-11-23 22:32:26,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:26,635 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-23 22:32:26,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 22:32:26,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:26,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:32:26,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:32:26,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:32:26,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:26,637 INFO L85 PathProgramCache]: Analyzing trace with hash 63089491, now seen corresponding path program 1 times [2023-11-23 22:32:26,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:26,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868216224] [2023-11-23 22:32:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:26,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:26,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:26,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:26,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868216224] [2023-11-23 22:32:26,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868216224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:26,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:26,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:32:26,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388721375] [2023-11-23 22:32:26,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:26,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:32:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:32:26,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:32:26,899 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:26,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:26,928 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2023-11-23 22:32:26,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:32:26,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 22:32:26,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:26,930 INFO L225 Difference]: With dead ends: 18 [2023-11-23 22:32:26,931 INFO L226 Difference]: Without dead ends: 11 [2023-11-23 22:32:26,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:32:26,933 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:26,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:32:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-23 22:32:26,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-23 22:32:26,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:26,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-11-23 22:32:26,940 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 5 [2023-11-23 22:32:26,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:26,940 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-11-23 22:32:26,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-23 22:32:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 22:32:26,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:26,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:26,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:32:26,943 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:32:26,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:26,944 INFO L85 PathProgramCache]: Analyzing trace with hash -100395752, now seen corresponding path program 1 times [2023-11-23 22:32:26,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:26,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026913827] [2023-11-23 22:32:26,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:26,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:27,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:27,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026913827] [2023-11-23 22:32:27,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026913827] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:32:27,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51876235] [2023-11-23 22:32:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:27,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:27,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:27,357 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:32:27,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:32:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:27,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:32:27,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:32:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:27,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:32:27,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:27,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51876235] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:32:27,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:32:27,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 8 [2023-11-23 22:32:27,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529952188] [2023-11-23 22:32:27,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:32:27,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:32:27,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:27,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:32:27,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:32:27,703 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:27,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:27,822 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2023-11-23 22:32:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:32:27,824 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 22:32:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:27,826 INFO L225 Difference]: With dead ends: 25 [2023-11-23 22:32:27,832 INFO L226 Difference]: Without dead ends: 18 [2023-11-23 22:32:27,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:32:27,837 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:27,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 7 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:32:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-23 22:32:27,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-23 22:32:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:27,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2023-11-23 22:32:27,849 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 8 [2023-11-23 22:32:27,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:27,850 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2023-11-23 22:32:27,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:27,851 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-23 22:32:27,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 22:32:27,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:27,852 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1] [2023-11-23 22:32:27,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:32:28,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:28,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:32:28,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:28,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1140498195, now seen corresponding path program 2 times [2023-11-23 22:32:28,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:28,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895449699] [2023-11-23 22:32:28,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:28,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:28,480 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:28,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:28,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895449699] [2023-11-23 22:32:28,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895449699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:32:28,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128705242] [2023-11-23 22:32:28,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:32:28,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:28,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:28,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:32:28,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:32:28,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:32:28,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:32:28,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 22:32:28,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:32:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:28,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:32:29,050 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:29,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128705242] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:32:29,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:32:29,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 8] total 19 [2023-11-23 22:32:29,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050895190] [2023-11-23 22:32:29,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:32:29,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-23 22:32:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:29,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 22:32:29,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2023-11-23 22:32:29,062 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:30,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:30,325 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2023-11-23 22:32:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 22:32:30,326 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-23 22:32:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:30,328 INFO L225 Difference]: With dead ends: 56 [2023-11-23 22:32:30,328 INFO L226 Difference]: Without dead ends: 37 [2023-11-23 22:32:30,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2023-11-23 22:32:30,330 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 37 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:30,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 19 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 22:32:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-23 22:32:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2023-11-23 22:32:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-11-23 22:32:30,342 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 17 [2023-11-23 22:32:30,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:30,343 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-11-23 22:32:30,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-11-23 22:32:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 22:32:30,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:30,344 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:30,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-23 22:32:30,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:30,559 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:32:30,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:30,560 INFO L85 PathProgramCache]: Analyzing trace with hash 783289269, now seen corresponding path program 1 times [2023-11-23 22:32:30,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:30,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047197639] [2023-11-23 22:32:30,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:30,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:30,741 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 11 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:30,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:30,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047197639] [2023-11-23 22:32:30,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047197639] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:32:30,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878124998] [2023-11-23 22:32:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:30,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:30,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:30,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:32:30,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:32:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:30,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:32:30,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:32:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 11 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:30,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:32:31,010 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 11 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:31,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878124998] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:32:31,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:32:31,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-11-23 22:32:31,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954056905] [2023-11-23 22:32:31,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:32:31,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 22:32:31,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:31,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 22:32:31,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:32:31,014 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:31,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:31,373 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2023-11-23 22:32:31,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 22:32:31,373 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-11-23 22:32:31,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:31,374 INFO L225 Difference]: With dead ends: 59 [2023-11-23 22:32:31,375 INFO L226 Difference]: Without dead ends: 52 [2023-11-23 22:32:31,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=230, Unknown=0, NotChecked=0, Total=380 [2023-11-23 22:32:31,376 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:31,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 15 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:32:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-23 22:32:31,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2023-11-23 22:32:31,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 42 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2023-11-23 22:32:31,397 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 23 [2023-11-23 22:32:31,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:31,399 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2023-11-23 22:32:31,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:31,400 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2023-11-23 22:32:31,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 22:32:31,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:31,401 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1] [2023-11-23 22:32:31,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:32:31,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:31,622 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:32:31,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:31,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1831092403, now seen corresponding path program 3 times [2023-11-23 22:32:31,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:31,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929934452] [2023-11-23 22:32:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:31,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:32,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:32,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929934452] [2023-11-23 22:32:32,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929934452] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:32:32,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289519962] [2023-11-23 22:32:32,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 22:32:32,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:32,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:32,191 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:32:32,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:32:32,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 22:32:32,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:32:32,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:32:32,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:32:32,377 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-11-23 22:32:32,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:32:32,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289519962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:32,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:32:32,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 16 [2023-11-23 22:32:32,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969270859] [2023-11-23 22:32:32,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:32,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:32:32,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:32,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:32:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-23 22:32:32,382 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:32,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:32,444 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2023-11-23 22:32:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:32:32,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-23 22:32:32,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:32,448 INFO L225 Difference]: With dead ends: 52 [2023-11-23 22:32:32,448 INFO L226 Difference]: Without dead ends: 48 [2023-11-23 22:32:32,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-11-23 22:32:32,451 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:32,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 7 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:32:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-23 22:32:32,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2023-11-23 22:32:32,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.0454545454545454) internal successors, (46), 44 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2023-11-23 22:32:32,468 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 35 [2023-11-23 22:32:32,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:32,469 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2023-11-23 22:32:32,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2023-11-23 22:32:32,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 22:32:32,472 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:32,473 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:32,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:32:32,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 22:32:32,687 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:32:32,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:32,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1880579942, now seen corresponding path program 2 times [2023-11-23 22:32:32,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:32,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326656245] [2023-11-23 22:32:32,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:32,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 25 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:33,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:33,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326656245] [2023-11-23 22:32:33,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326656245] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:32:33,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513301314] [2023-11-23 22:32:33,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 22:32:33,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:33,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:33,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:32:33,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:32:33,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 22:32:33,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:32:33,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 22:32:33,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:32:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 25 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:33,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:32:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:34,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513301314] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:32:34,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:32:34,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 17] total 32 [2023-11-23 22:32:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237571042] [2023-11-23 22:32:34,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:32:34,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-23 22:32:34,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:34,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-23 22:32:34,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=766, Unknown=0, NotChecked=0, Total=1056 [2023-11-23 22:32:34,171 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:46,843 INFO L93 Difference]: Finished difference Result 96 states and 112 transitions. [2023-11-23 22:32:46,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-11-23 22:32:46,845 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-11-23 22:32:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:46,846 INFO L225 Difference]: With dead ends: 96 [2023-11-23 22:32:46,847 INFO L226 Difference]: Without dead ends: 87 [2023-11-23 22:32:46,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=1559, Invalid=3411, Unknown=0, NotChecked=0, Total=4970 [2023-11-23 22:32:46,850 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 73 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:46,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 34 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 22:32:46,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-23 22:32:46,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-23 22:32:46,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.0232558139534884) internal successors, (88), 86 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:46,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2023-11-23 22:32:46,879 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 44 [2023-11-23 22:32:46,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:46,879 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2023-11-23 22:32:46,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:46,880 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2023-11-23 22:32:46,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 22:32:46,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:46,886 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:46,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-23 22:32:47,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-23 22:32:47,091 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:32:47,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:47,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1979964550, now seen corresponding path program 3 times [2023-11-23 22:32:47,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:47,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593052033] [2023-11-23 22:32:47,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:47,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:48,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 53 proven. 1027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:48,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:48,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593052033] [2023-11-23 22:32:48,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593052033] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:32:48,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385140751] [2023-11-23 22:32:48,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 22:32:48,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:48,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:48,140 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:32:48,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:32:48,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-23 22:32:48,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:32:48,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 22:32:48,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:32:48,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2023-11-23 22:32:48,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:32:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2023-11-23 22:32:49,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385140751] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:32:49,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:32:49,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 6, 7] total 39 [2023-11-23 22:32:49,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818885020] [2023-11-23 22:32:49,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:32:49,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-23 22:32:49,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:49,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-23 22:32:49,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1343, Unknown=0, NotChecked=0, Total=1560 [2023-11-23 22:32:49,292 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand has 40 states, 40 states have (on average 2.65) internal successors, (106), 39 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:51,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:51,439 INFO L93 Difference]: Finished difference Result 115 states and 127 transitions. [2023-11-23 22:32:51,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-23 22:32:51,440 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.65) internal successors, (106), 39 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-11-23 22:32:51,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:51,442 INFO L225 Difference]: With dead ends: 115 [2023-11-23 22:32:51,442 INFO L226 Difference]: Without dead ends: 106 [2023-11-23 22:32:51,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=788, Invalid=4324, Unknown=0, NotChecked=0, Total=5112 [2023-11-23 22:32:51,446 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 90 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:51,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 22 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 22:32:51,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-23 22:32:51,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2023-11-23 22:32:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.0480769230769231) internal successors, (109), 104 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:51,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2023-11-23 22:32:51,466 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 86 [2023-11-23 22:32:51,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:51,466 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2023-11-23 22:32:51,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.65) internal successors, (106), 39 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:51,467 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2023-11-23 22:32:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:32:51,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:51,469 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 28, 5, 1, 1, 1, 1, 1] [2023-11-23 22:32:51,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:32:51,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 22:32:51,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:32:51,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:51,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1364409254, now seen corresponding path program 4 times [2023-11-23 22:32:51,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:51,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176446169] [2023-11-23 22:32:51,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:51,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 401 proven. 1190 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 22:32:52,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:52,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176446169] [2023-11-23 22:32:52,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176446169] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:32:52,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877270151] [2023-11-23 22:32:52,789 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 22:32:52,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:52,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:52,791 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:32:52,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:32:52,877 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 22:32:52,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:32:52,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 71 conjunts are in the unsatisfiable core [2023-11-23 22:32:52,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:32:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 401 proven. 1190 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 22:32:53,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:32:56,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 0 proven. 1617 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:56,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877270151] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:32:56,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:32:56,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 31, 37] total 68 [2023-11-23 22:32:56,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975539619] [2023-11-23 22:32:56,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:32:56,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2023-11-23 22:32:56,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:56,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2023-11-23 22:32:56,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1098, Invalid=3594, Unknown=0, NotChecked=0, Total=4692 [2023-11-23 22:32:56,973 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand has 69 states, 69 states have (on average 2.869565217391304) internal successors, (198), 68 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:01,050 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse16 (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296))) (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296)) (.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296)) (.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296)) (.cse11 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse7 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296)) (.cse17 (< .cse16 5000000)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296)) (.cse28 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296)) (.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse25 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (and (or (< .cse0 5000000) (< .cse1 (+ 1 .cse0))) (or (< .cse2 (+ .cse3 1)) (< .cse3 5000000)) (or (< .cse4 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) (+ .cse4 1))) (or (< .cse5 5000000) (< .cse3 (+ .cse5 1))) (or (< .cse6 (+ .cse7 1)) (< .cse7 5000000)) (or (< .cse8 5000000) (< .cse9 (+ .cse8 1))) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< .cse10 5000000) (< .cse11 (+ .cse10 1)))) (or (< .cse12 5000000) (< .cse13 (+ 1 .cse12))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) (+ .cse14 1)) (< .cse14 5000000)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) (+ .cse6 1)) (< .cse6 5000000)) (or (< .cse9 5000000) (< .cse15 (+ .cse9 1))) (or (< .cse12 (+ .cse16 1)) .cse17) (or (< .cse15 5000000) (< .cse4 (+ .cse15 1))) (or (< .cse11 5000000) (< .cse18 (+ .cse11 1))) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296))) (or (< .cse19 (+ .cse20 1)) (< .cse20 5000000))) (or (< .cse7 (+ .cse1 1)) (< .cse1 5000000)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) (+ .cse2 1)) (< .cse2 5000000)) (or (< .cse19 5000000) (< .cse0 (+ .cse19 1))) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296))) (or (< .cse21 5000000) (< .cse22 (+ .cse21 1)))) (or (< .cse23 (+ .cse24 1)) (< .cse24 5000000)) (or (< .cse25 (+ .cse26 1)) (< .cse26 5000000)) (or (< .cse12 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296)) .cse17) (or (< .cse13 5000000) (< .cse24 (+ .cse13 1))) (or (< .cse8 (+ .cse22 1)) (< .cse22 5000000)) (or (< .cse23 5000000) (< .cse14 (+ .cse23 1))) (or (< .cse18 5000000) (< .cse5 (+ .cse18 1))) (let ((.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse27 5000000) (< .cse28 (+ .cse27 1)))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) (+ .cse29 1)) (< .cse29 5000000)) (or (< .cse28 5000000) (< .cse26 (+ .cse28 1))) (or (< .cse25 5000000) (< .cse29 (+ .cse25 1)))))) is different from false [2023-11-23 22:33:03,079 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296)) (.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296)) (.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296)) (.cse11 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse7 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296)) (.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296)) (.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296)) (.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse23 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (and (or (< .cse0 5000000) (< .cse1 (+ 1 .cse0))) (or (< .cse2 (+ .cse3 1)) (< .cse3 5000000)) (or (< .cse4 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) (+ .cse4 1))) (or (< .cse5 5000000) (< .cse3 (+ .cse5 1))) (or (< .cse6 (+ .cse7 1)) (< .cse7 5000000)) (or (< .cse8 5000000) (< .cse9 (+ .cse8 1))) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< .cse10 5000000) (< .cse11 (+ .cse10 1)))) (or (< .cse12 5000000) (< .cse13 (+ 1 .cse12))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) (+ .cse14 1)) (< .cse14 5000000)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) (+ .cse6 1)) (< .cse6 5000000)) (or (< .cse9 5000000) (< .cse15 (+ .cse9 1))) (or (< .cse15 5000000) (< .cse4 (+ .cse15 1))) (or (< .cse11 5000000) (< .cse16 (+ .cse11 1))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296))) (or (< .cse17 (+ .cse18 1)) (< .cse18 5000000))) (or (< .cse7 (+ .cse1 1)) (< .cse1 5000000)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) (+ .cse2 1)) (< .cse2 5000000)) (or (< .cse17 5000000) (< .cse0 (+ .cse17 1))) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296))) (or (< .cse19 5000000) (< .cse20 (+ .cse19 1)))) (or (< .cse21 (+ .cse22 1)) (< .cse22 5000000)) (or (< .cse23 (+ .cse24 1)) (< .cse24 5000000)) (or (< .cse12 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296)) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 5000000)) (or (< .cse13 5000000) (< .cse22 (+ .cse13 1))) (or (< .cse8 (+ .cse20 1)) (< .cse20 5000000)) (or (< .cse21 5000000) (< .cse14 (+ .cse21 1))) (or (< .cse16 5000000) (< .cse5 (+ .cse16 1))) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse25 5000000) (< .cse26 (+ .cse25 1)))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) (+ .cse27 1)) (< .cse27 5000000)) (or (< .cse26 5000000) (< .cse24 (+ .cse26 1))) (or (< .cse23 5000000) (< .cse27 (+ .cse23 1))))) is different from false [2023-11-23 22:33:05,094 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296)) (.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296)) (.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296)) (.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296)) (.cse11 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse7 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296)) (.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296)) (.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse23 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (and (or (< .cse0 5000000) (< .cse1 (+ 1 .cse0))) (or (< .cse2 (+ .cse3 1)) (< .cse3 5000000)) (or (< .cse4 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) (+ .cse4 1))) (or (< .cse5 5000000) (< .cse3 (+ .cse5 1))) (or (< .cse6 (+ .cse7 1)) (< .cse7 5000000)) (or (< .cse8 5000000) (< .cse9 (+ .cse8 1))) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< .cse10 5000000) (< .cse11 (+ .cse10 1)))) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296))) (or (< .cse12 5000000) (< .cse13 (+ 1 .cse12)))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) (+ .cse14 1)) (< .cse14 5000000)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) (+ .cse6 1)) (< .cse6 5000000)) (or (< .cse9 5000000) (< .cse15 (+ .cse9 1))) (or (< .cse15 5000000) (< .cse4 (+ .cse15 1))) (or (< .cse11 5000000) (< .cse16 (+ .cse11 1))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296))) (or (< .cse17 (+ .cse18 1)) (< .cse18 5000000))) (or (< .cse7 (+ .cse1 1)) (< .cse1 5000000)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) (+ .cse2 1)) (< .cse2 5000000)) (or (< .cse17 5000000) (< .cse0 (+ .cse17 1))) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296))) (or (< .cse19 5000000) (< .cse20 (+ .cse19 1)))) (or (< .cse21 (+ .cse22 1)) (< .cse22 5000000)) (or (< .cse23 (+ .cse24 1)) (< .cse24 5000000)) (or (< .cse13 5000000) (< .cse22 (+ .cse13 1))) (or (< .cse8 (+ .cse20 1)) (< .cse20 5000000)) (or (< .cse21 5000000) (< .cse14 (+ .cse21 1))) (or (< .cse16 5000000) (< .cse5 (+ .cse16 1))) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse25 5000000) (< .cse26 (+ .cse25 1)))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) (+ .cse27 1)) (< .cse27 5000000)) (or (< .cse26 5000000) (< .cse24 (+ .cse26 1))) (or (< .cse23 5000000) (< .cse27 (+ .cse23 1))))) is different from false [2023-11-23 22:33:07,109 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296)) (.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296)) (.cse10 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse6 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296)) (.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296)) (.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse23 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (and (or (< .cse0 5000000) (< .cse1 (+ 1 .cse0))) (or (< .cse2 (+ .cse3 1)) (< .cse3 5000000)) (or (< .cse4 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) (+ .cse4 1))) (or (< .cse5 5000000) (< .cse3 (+ .cse5 1))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) (+ .cse6 1)) (< .cse6 5000000)) (or (< .cse7 5000000) (< .cse8 (+ .cse7 1))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< .cse9 5000000) (< .cse10 (+ .cse9 1)))) (or (< .cse11 5000000) (< .cse12 (+ 1 .cse11))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) (+ .cse13 1)) (< .cse13 5000000)) (or (< .cse8 5000000) (< .cse14 (+ .cse8 1))) (let ((.cse15 (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296))) (or (< .cse11 (+ .cse15 1)) (< .cse15 5000000))) (or (< .cse14 5000000) (< .cse4 (+ .cse14 1))) (or (< .cse10 5000000) (< .cse16 (+ .cse10 1))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296))) (or (< .cse17 (+ .cse18 1)) (< .cse18 5000000))) (or (< .cse6 (+ .cse1 1)) (< .cse1 5000000)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) (+ .cse2 1)) (< .cse2 5000000)) (or (< .cse17 5000000) (< .cse0 (+ .cse17 1))) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296))) (or (< .cse19 5000000) (< .cse20 (+ .cse19 1)))) (or (< .cse21 (+ .cse22 1)) (< .cse22 5000000)) (or (< .cse23 (+ .cse24 1)) (< .cse24 5000000)) (or (< .cse12 5000000) (< .cse22 (+ .cse12 1))) (or (< .cse7 (+ .cse20 1)) (< .cse20 5000000)) (or (< .cse21 5000000) (< .cse13 (+ .cse21 1))) (or (< .cse16 5000000) (< .cse5 (+ .cse16 1))) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse25 5000000) (< .cse26 (+ .cse25 1)))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) (+ .cse27 1)) (< .cse27 5000000)) (or (< .cse26 5000000) (< .cse24 (+ .cse26 1))) (or (< .cse23 5000000) (< .cse27 (+ .cse23 1))))) is different from false [2023-11-23 22:33:09,164 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296)) (.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296)) (.cse10 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse6 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296)) (.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296)) (.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296)) (.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse22 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (and (or (< .cse0 5000000) (< .cse1 (+ 1 .cse0))) (or (< .cse2 (+ .cse3 1)) (< .cse3 5000000)) (or (< .cse4 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) (+ .cse4 1))) (or (< .cse5 5000000) (< .cse3 (+ .cse5 1))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) (+ .cse6 1)) (< .cse6 5000000)) (or (< .cse7 5000000) (< .cse8 (+ .cse7 1))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< .cse9 5000000) (< .cse10 (+ .cse9 1)))) (or (< .cse11 5000000) (< .cse12 (+ 1 .cse11))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) (+ .cse13 1)) (< .cse13 5000000)) (or (< .cse8 5000000) (< .cse14 (+ .cse8 1))) (or (< .cse14 5000000) (< .cse4 (+ .cse14 1))) (or (< .cse10 5000000) (< .cse15 (+ .cse10 1))) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296))) (or (< .cse16 (+ .cse17 1)) (< .cse17 5000000))) (or (< .cse6 (+ .cse1 1)) (< .cse1 5000000)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) (+ .cse2 1)) (< .cse2 5000000)) (or (< .cse16 5000000) (< .cse0 (+ .cse16 1))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296))) (or (< .cse18 5000000) (< .cse19 (+ .cse18 1)))) (or (< .cse20 (+ .cse21 1)) (< .cse21 5000000)) (or (< .cse22 (+ .cse23 1)) (< .cse23 5000000)) (or (< .cse11 (mod |c_ULTIMATE.start_main_~y~0#1| 4294967296)) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 5000000)) (or (< .cse12 5000000) (< .cse21 (+ .cse12 1))) (or (< .cse7 (+ .cse19 1)) (< .cse19 5000000)) (or (< .cse20 5000000) (< .cse13 (+ .cse20 1))) (or (< .cse15 5000000) (< .cse5 (+ .cse15 1))) (let ((.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse24 5000000) (< .cse25 (+ .cse24 1)))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) (+ .cse26 1)) (< .cse26 5000000)) (or (< .cse25 5000000) (< .cse23 (+ .cse25 1))) (or (< .cse22 5000000) (< .cse26 (+ .cse22 1))))) is different from false [2023-11-23 22:33:11,310 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296)) (.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296)) (.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296)) (.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296)) (.cse10 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse6 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296)) (.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296)) (.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296)) (.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296)) (.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296)) (.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296)) (.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296)) (.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296)) (.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296)) (.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296)) (.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296)) (.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296)) (.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296)) (.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296)) (.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296)) (.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296)) (.cse22 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (and (or (< .cse0 5000000) (< .cse1 (+ 1 .cse0))) (or (< .cse2 (+ .cse3 1)) (< .cse3 5000000)) (or (< .cse4 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) (+ .cse4 1))) (or (< .cse5 5000000) (< .cse3 (+ .cse5 1))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) (+ .cse6 1)) (< .cse6 5000000)) (or (< .cse7 5000000) (< .cse8 (+ .cse7 1))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< .cse9 5000000) (< .cse10 (+ .cse9 1)))) (let ((.cse11 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296))) (or (< .cse11 5000000) (< .cse12 (+ 1 .cse11)))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) (+ .cse13 1)) (< .cse13 5000000)) (or (< .cse8 5000000) (< .cse14 (+ .cse8 1))) (or (< .cse14 5000000) (< .cse4 (+ .cse14 1))) (or (< .cse10 5000000) (< .cse15 (+ .cse10 1))) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296))) (or (< .cse16 (+ .cse17 1)) (< .cse17 5000000))) (or (< .cse6 (+ .cse1 1)) (< .cse1 5000000)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) (+ .cse2 1)) (< .cse2 5000000)) (or (< .cse16 5000000) (< .cse0 (+ .cse16 1))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296))) (or (< .cse18 5000000) (< .cse19 (+ .cse18 1)))) (or (< .cse20 (+ .cse21 1)) (< .cse21 5000000)) (or (< .cse22 (+ .cse23 1)) (< .cse23 5000000)) (or (< .cse12 5000000) (< .cse21 (+ .cse12 1))) (or (< .cse7 (+ .cse19 1)) (< .cse19 5000000)) (or (< .cse20 5000000) (< .cse13 (+ .cse20 1))) (or (< .cse15 5000000) (< .cse5 (+ .cse15 1))) (let ((.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse24 5000000) (< .cse25 (+ .cse24 1)))) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) (+ .cse26 1)) (< .cse26 5000000)) (or (< .cse25 5000000) (< .cse23 (+ .cse25 1))) (or (< .cse22 5000000) (< .cse26 (+ .cse22 1))))) is different from false [2023-11-23 22:33:15,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:15,650 INFO L93 Difference]: Finished difference Result 165 states and 182 transitions. [2023-11-23 22:33:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-11-23 22:33:15,651 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.869565217391304) internal successors, (198), 68 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-11-23 22:33:15,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:15,653 INFO L225 Difference]: With dead ends: 165 [2023-11-23 22:33:15,653 INFO L226 Difference]: Without dead ends: 143 [2023-11-23 22:33:15,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=2227, Invalid=8921, Unknown=6, NotChecked=1278, Total=12432 [2023-11-23 22:33:15,658 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 72 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 3388 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 375 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:15,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 74 Invalid, 3811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3388 Invalid, 0 Unknown, 375 Unchecked, 1.8s Time] [2023-11-23 22:33:15,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-23 22:33:15,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 120. [2023-11-23 22:33:15,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.0588235294117647) internal successors, (126), 119 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:15,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2023-11-23 22:33:15,695 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 104 [2023-11-23 22:33:15,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:15,696 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2023-11-23 22:33:15,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.869565217391304) internal successors, (198), 68 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:15,697 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2023-11-23 22:33:15,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 22:33:15,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:15,706 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 29, 6, 1, 1, 1, 1, 1] [2023-11-23 22:33:15,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:33:15,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:33:15,923 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:15,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:15,923 INFO L85 PathProgramCache]: Analyzing trace with hash 231153528, now seen corresponding path program 5 times [2023-11-23 22:33:15,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:15,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461059594] [2023-11-23 22:33:15,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:15,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 504 proven. 1276 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:33:17,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461059594] [2023-11-23 22:33:17,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461059594] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:33:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167498240] [2023-11-23 22:33:17,116 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 22:33:17,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:33:17,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:33:17,119 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:33:17,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9faeaa74-b7a6-49bb-9b2c-6c199ab1046e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:33:17,795 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2023-11-23 22:33:17,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:33:17,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 71 conjunts are in the unsatisfiable core [2023-11-23 22:33:17,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:33:18,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 69 proven. 1751 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:18,132 INFO L327 TraceCheckSpWp]: Computing backward predicates...