./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:51,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:51,822 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:58:51,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:51,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:51,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:51,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:51,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:51,888 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:51,892 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:51,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:51,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:51,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:51,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:51,901 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:51,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:51,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:51,903 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:51,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:51,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:51,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:51,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:51,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:51,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:51,907 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:58:51,907 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:58:51,908 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:51,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:51,909 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:51,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:51,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:51,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:51,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:51,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:51,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:51,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:51,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:51,914 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:51,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:58:51,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:51,915 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:51,916 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:51,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:51,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:51,917 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_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 [2023-11-26 11:58:52,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:52,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:52,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:52,290 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:52,291 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:52,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2023-11-26 11:58:55,843 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:56,325 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:56,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2023-11-26 11:58:56,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/data/4e3e308d3/96f4d608fd4348a2a01948e1c1c3e321/FLAG018226db3 [2023-11-26 11:58:56,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/data/4e3e308d3/96f4d608fd4348a2a01948e1c1c3e321 [2023-11-26 11:58:56,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:56,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:56,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:56,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:56,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:56,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:56" (1/1) ... [2023-11-26 11:58:56,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb3a5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:56, skipping insertion in model container [2023-11-26 11:58:56,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:56" (1/1) ... [2023-11-26 11:58:56,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:57,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:57,433 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:57,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:57,722 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:58:57,731 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:57,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57 WrapperNode [2023-11-26 11:58:57,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:57,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:57,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:57,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:57,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:57,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:57,907 INFO L138 Inliner]: procedures = 208, calls = 288, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1380 [2023-11-26 11:58:57,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:57,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:57,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:57,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:57,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:57,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:57,934 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:58,043 INFO L175 MemorySlicer]: Split 261 memory accesses to 4 slices as follows [2, 34, 220, 5]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 4, 50, 1]. [2023-11-26 11:58:58,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:58,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:58,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:58,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:58,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:58,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:58,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:58,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:58,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:58,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:58,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (1/1) ... [2023-11-26 11:58:58,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:58,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:58,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:58,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:58,292 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-26 11:58:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-26 11:58:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 11:58:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 11:58:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 11:58:58,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 11:58:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 11:58:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 11:58:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 11:58:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 11:58:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:58:58,294 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-26 11:58:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:58:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:58:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:58:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:58:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:58:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:58:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:58:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:58:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:58:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:58:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:58:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:58:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:58:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:58:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:58:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:58:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:58:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:58:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:58:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:58:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:58:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:58:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:58:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:58:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:58,584 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:58,587 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:59:00,228 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:59:00,282 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:59:00,282 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-26 11:59:00,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:00 BoogieIcfgContainer [2023-11-26 11:59:00,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:59:00,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:59:00,285 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:59:00,289 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:59:00,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:56" (1/3) ... [2023-11-26 11:59:00,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d26d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:00, skipping insertion in model container [2023-11-26 11:59:00,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:57" (2/3) ... [2023-11-26 11:59:00,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d26d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:00, skipping insertion in model container [2023-11-26 11:59:00,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:00" (3/3) ... [2023-11-26 11:59:00,292 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test2-2.i [2023-11-26 11:59:00,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:59:00,313 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-26 11:59:00,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:59:00,380 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;@70cc7b27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:59:00,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 11:59:00,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 385 states, 363 states have (on average 1.7107438016528926) internal successors, (621), 378 states have internal predecessors, (621), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:59:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 11:59:00,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:00,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 11:59:00,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:00,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:00,399 INFO L85 PathProgramCache]: Analyzing trace with hash -679169128, now seen corresponding path program 1 times [2023-11-26 11:59:00,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:00,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352870337] [2023-11-26 11:59:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:00,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:00,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:00,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352870337] [2023-11-26 11:59:00,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 11:59:00,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752453652] [2023-11-26 11:59:00,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:00,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:00,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:00,658 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:00,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:59:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:00,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:59:00,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:00,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:00,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752453652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:00,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:00,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:00,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719464324] [2023-11-26 11:59:00,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:00,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:59:00,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:00,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:59:00,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:59:00,945 INFO L87 Difference]: Start difference. First operand has 385 states, 363 states have (on average 1.7107438016528926) internal successors, (621), 378 states have internal predecessors, (621), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-26 11:59:01,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:01,030 INFO L93 Difference]: Finished difference Result 767 states and 1285 transitions. [2023-11-26 11:59:01,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:59:01,033 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-26 11:59:01,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:01,047 INFO L225 Difference]: With dead ends: 767 [2023-11-26 11:59:01,048 INFO L226 Difference]: Without dead ends: 345 [2023-11-26 11:59:01,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:59:01,057 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:01,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 564 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:01,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-11-26 11:59:01,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2023-11-26 11:59:01,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 327 states have (on average 1.5321100917431192) internal successors, (501), 339 states have internal predecessors, (501), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:59:01,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 517 transitions. [2023-11-26 11:59:01,142 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 517 transitions. Word has length 6 [2023-11-26 11:59:01,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:01,143 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 517 transitions. [2023-11-26 11:59:01,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-26 11:59:01,143 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 517 transitions. [2023-11-26 11:59:01,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 11:59:01,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:01,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 11:59:01,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:01,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:01,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:01,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:01,354 INFO L85 PathProgramCache]: Analyzing trace with hash -679167206, now seen corresponding path program 1 times [2023-11-26 11:59:01,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:01,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346132484] [2023-11-26 11:59:01,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:01,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:01,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:01,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442017944] [2023-11-26 11:59:01,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:01,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:01,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:01,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:01,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:59:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:01,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:59:01,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:01,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-26 11:59:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:01,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:01,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:01,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346132484] [2023-11-26 11:59:01,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:01,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442017944] [2023-11-26 11:59:01,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442017944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:01,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:01,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:01,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111793144] [2023-11-26 11:59:01,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:01,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:01,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:01,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:01,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:01,713 INFO L87 Difference]: Start difference. First operand 345 states and 517 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-26 11:59:01,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:01,912 INFO L93 Difference]: Finished difference Result 682 states and 1027 transitions. [2023-11-26 11:59:01,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:01,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-26 11:59:01,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:01,919 INFO L225 Difference]: With dead ends: 682 [2023-11-26 11:59:01,919 INFO L226 Difference]: Without dead ends: 680 [2023-11-26 11:59:01,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:01,922 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 487 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:01,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1549 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-11-26 11:59:01,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 351. [2023-11-26 11:59:01,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 333 states have (on average 1.5255255255255256) internal successors, (508), 345 states have internal predecessors, (508), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:59:01,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 524 transitions. [2023-11-26 11:59:01,984 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 524 transitions. Word has length 6 [2023-11-26 11:59:01,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:01,985 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 524 transitions. [2023-11-26 11:59:01,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-26 11:59:01,988 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 524 transitions. [2023-11-26 11:59:01,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-26 11:59:01,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:01,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:02,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:02,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:02,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:02,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:02,205 INFO L85 PathProgramCache]: Analyzing trace with hash -687041264, now seen corresponding path program 1 times [2023-11-26 11:59:02,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:02,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88353817] [2023-11-26 11:59:02,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:02,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:02,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:02,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:02,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88353817] [2023-11-26 11:59:02,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88353817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:02,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:02,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:59:02,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410370682] [2023-11-26 11:59:02,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:02,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:02,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:02,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:02,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:02,909 INFO L87 Difference]: Start difference. First operand 351 states and 524 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-11-26 11:59:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:03,128 INFO L93 Difference]: Finished difference Result 839 states and 1268 transitions. [2023-11-26 11:59:03,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:03,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-11-26 11:59:03,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:03,135 INFO L225 Difference]: With dead ends: 839 [2023-11-26 11:59:03,135 INFO L226 Difference]: Without dead ends: 679 [2023-11-26 11:59:03,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:03,138 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 488 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:03,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1552 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-11-26 11:59:03,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 351. [2023-11-26 11:59:03,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 333 states have (on average 1.5225225225225225) internal successors, (507), 345 states have internal predecessors, (507), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:59:03,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 523 transitions. [2023-11-26 11:59:03,173 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 523 transitions. Word has length 63 [2023-11-26 11:59:03,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:03,173 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 523 transitions. [2023-11-26 11:59:03,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-11-26 11:59:03,173 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 523 transitions. [2023-11-26 11:59:03,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-26 11:59:03,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:03,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:03,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:59:03,180 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:03,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:03,181 INFO L85 PathProgramCache]: Analyzing trace with hash -916697141, now seen corresponding path program 1 times [2023-11-26 11:59:03,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:03,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662412714] [2023-11-26 11:59:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:03,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:03,234 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:03,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516262141] [2023-11-26 11:59:03,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:03,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:03,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:03,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:03,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:59:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:03,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:59:03,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:03,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:03,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:03,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:03,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662412714] [2023-11-26 11:59:03,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:03,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516262141] [2023-11-26 11:59:03,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516262141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:03,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:03,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:59:03,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075386555] [2023-11-26 11:59:03,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:03,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:03,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:03,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:03,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:03,569 INFO L87 Difference]: Start difference. First operand 351 states and 523 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2023-11-26 11:59:03,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:03,692 INFO L93 Difference]: Finished difference Result 716 states and 1070 transitions. [2023-11-26 11:59:03,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:03,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2023-11-26 11:59:03,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:03,696 INFO L225 Difference]: With dead ends: 716 [2023-11-26 11:59:03,697 INFO L226 Difference]: Without dead ends: 372 [2023-11-26 11:59:03,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:03,699 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 8 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:03,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 976 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:03,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-26 11:59:03,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2023-11-26 11:59:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 353 states have (on average 1.4929178470254958) internal successors, (527), 365 states have internal predecessors, (527), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:59:03,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 543 transitions. [2023-11-26 11:59:03,717 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 543 transitions. Word has length 80 [2023-11-26 11:59:03,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:03,718 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 543 transitions. [2023-11-26 11:59:03,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2023-11-26 11:59:03,718 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 543 transitions. [2023-11-26 11:59:03,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-26 11:59:03,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:03,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:03,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:03,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-26 11:59:03,927 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:03,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:03,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1792716147, now seen corresponding path program 1 times [2023-11-26 11:59:03,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:03,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179825626] [2023-11-26 11:59:03,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:03,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:04,001 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:04,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1279935813] [2023-11-26 11:59:04,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:04,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:04,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:04,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:04,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:59:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:04,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:04,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:04,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:04,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:04,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179825626] [2023-11-26 11:59:04,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:04,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279935813] [2023-11-26 11:59:04,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279935813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:04,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:04,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:04,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259811406] [2023-11-26 11:59:04,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:04,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:04,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:04,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:04,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:04,393 INFO L87 Difference]: Start difference. First operand 371 states and 543 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2023-11-26 11:59:04,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:04,551 INFO L93 Difference]: Finished difference Result 722 states and 1066 transitions. [2023-11-26 11:59:04,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:04,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2023-11-26 11:59:04,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:04,556 INFO L225 Difference]: With dead ends: 722 [2023-11-26 11:59:04,556 INFO L226 Difference]: Without dead ends: 358 [2023-11-26 11:59:04,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:04,558 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 147 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:04,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1784 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:04,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-26 11:59:04,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2023-11-26 11:59:04,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 339 states have (on average 1.4926253687315634) internal successors, (506), 351 states have internal predecessors, (506), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:59:04,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 522 transitions. [2023-11-26 11:59:04,577 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 522 transitions. Word has length 80 [2023-11-26 11:59:04,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:04,578 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 522 transitions. [2023-11-26 11:59:04,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2023-11-26 11:59:04,578 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 522 transitions. [2023-11-26 11:59:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-26 11:59:04,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:04,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:04,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:04,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:04,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:04,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:04,796 INFO L85 PathProgramCache]: Analyzing trace with hash -347557441, now seen corresponding path program 1 times [2023-11-26 11:59:04,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:04,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540246865] [2023-11-26 11:59:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:04,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:04,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:04,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038222583] [2023-11-26 11:59:04,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:04,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:04,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:04,857 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:04,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:59:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:05,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:05,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:05,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:05,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:05,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540246865] [2023-11-26 11:59:05,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:05,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038222583] [2023-11-26 11:59:05,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038222583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:05,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:05,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:05,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040917094] [2023-11-26 11:59:05,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:05,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:05,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:05,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:05,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:05,254 INFO L87 Difference]: Start difference. First operand 357 states and 522 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2023-11-26 11:59:05,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:05,430 INFO L93 Difference]: Finished difference Result 817 states and 1206 transitions. [2023-11-26 11:59:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:05,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2023-11-26 11:59:05,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:05,435 INFO L225 Difference]: With dead ends: 817 [2023-11-26 11:59:05,436 INFO L226 Difference]: Without dead ends: 467 [2023-11-26 11:59:05,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:05,438 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 149 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:05,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1589 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:05,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-11-26 11:59:05,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 380. [2023-11-26 11:59:05,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 362 states have (on average 1.4668508287292819) internal successors, (531), 374 states have internal predecessors, (531), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:59:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 547 transitions. [2023-11-26 11:59:05,455 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 547 transitions. Word has length 80 [2023-11-26 11:59:05,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:05,456 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 547 transitions. [2023-11-26 11:59:05,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2023-11-26 11:59:05,456 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 547 transitions. [2023-11-26 11:59:05,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-26 11:59:05,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:05,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:05,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:05,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:05,672 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:05,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:05,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1646102919, now seen corresponding path program 1 times [2023-11-26 11:59:05,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:05,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108789667] [2023-11-26 11:59:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:05,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:05,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:05,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575641117] [2023-11-26 11:59:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:05,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:05,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:05,723 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:05,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:59:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:06,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:06,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:06,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:06,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:06,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108789667] [2023-11-26 11:59:06,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:06,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575641117] [2023-11-26 11:59:06,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575641117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:06,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:06,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:59:06,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469752905] [2023-11-26 11:59:06,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:06,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:06,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:06,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:06,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:06,146 INFO L87 Difference]: Start difference. First operand 380 states and 547 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2023-11-26 11:59:06,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:06,228 INFO L93 Difference]: Finished difference Result 685 states and 987 transitions. [2023-11-26 11:59:06,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:06,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 80 [2023-11-26 11:59:06,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:06,233 INFO L225 Difference]: With dead ends: 685 [2023-11-26 11:59:06,233 INFO L226 Difference]: Without dead ends: 312 [2023-11-26 11:59:06,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:06,235 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 78 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:06,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1177 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-26 11:59:06,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2023-11-26 11:59:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 294 states have (on average 1.4591836734693877) internal successors, (429), 306 states have internal predecessors, (429), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:59:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 445 transitions. [2023-11-26 11:59:06,249 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 445 transitions. Word has length 80 [2023-11-26 11:59:06,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:06,249 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 445 transitions. [2023-11-26 11:59:06,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2023-11-26 11:59:06,250 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 445 transitions. [2023-11-26 11:59:06,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-26 11:59:06,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:06,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:06,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-26 11:59:06,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:06,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:06,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:06,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1223576447, now seen corresponding path program 1 times [2023-11-26 11:59:06,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:06,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933641224] [2023-11-26 11:59:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:06,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:06,508 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:06,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415121835] [2023-11-26 11:59:06,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:06,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:06,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:06,509 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:06,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:59:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:06,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:59:06,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:07,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:07,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:07,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:07,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933641224] [2023-11-26 11:59:07,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:07,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415121835] [2023-11-26 11:59:07,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415121835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:07,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:07,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:07,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118428864] [2023-11-26 11:59:07,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:07,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:07,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:07,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:07,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:07,221 INFO L87 Difference]: Start difference. First operand 312 states and 445 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-26 11:59:07,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:07,313 INFO L93 Difference]: Finished difference Result 822 states and 1193 transitions. [2023-11-26 11:59:07,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:07,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2023-11-26 11:59:07,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:07,320 INFO L225 Difference]: With dead ends: 822 [2023-11-26 11:59:07,320 INFO L226 Difference]: Without dead ends: 517 [2023-11-26 11:59:07,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:07,323 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 252 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:07,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1027 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:07,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-26 11:59:07,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 513. [2023-11-26 11:59:07,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 490 states have (on average 1.4836734693877551) internal successors, (727), 507 states have internal predecessors, (727), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:59:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 753 transitions. [2023-11-26 11:59:07,367 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 753 transitions. Word has length 80 [2023-11-26 11:59:07,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:07,368 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 753 transitions. [2023-11-26 11:59:07,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-26 11:59:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 753 transitions. [2023-11-26 11:59:07,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-26 11:59:07,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:07,373 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:07,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:07,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:07,582 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:07,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:07,583 INFO L85 PathProgramCache]: Analyzing trace with hash 61921792, now seen corresponding path program 1 times [2023-11-26 11:59:07,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:07,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324314078] [2023-11-26 11:59:07,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:07,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:07,644 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:07,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671443566] [2023-11-26 11:59:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:07,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:07,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:07,646 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:07,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:59:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:08,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:59:08,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:08,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-26 11:59:08,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-26 11:59:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 11:59:08,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:08,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:08,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324314078] [2023-11-26 11:59:08,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:08,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671443566] [2023-11-26 11:59:08,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671443566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:08,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:08,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:59:08,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860390662] [2023-11-26 11:59:08,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:08,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:08,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:08,274 INFO L87 Difference]: Start difference. First operand 513 states and 753 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:12,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 11:59:16,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 11:59:16,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:16,562 INFO L93 Difference]: Finished difference Result 692 states and 1030 transitions. [2023-11-26 11:59:16,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:16,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-26 11:59:16,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:16,569 INFO L225 Difference]: With dead ends: 692 [2023-11-26 11:59:16,569 INFO L226 Difference]: Without dead ends: 691 [2023-11-26 11:59:16,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:16,570 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 336 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:16,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1258 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-11-26 11:59:16,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-11-26 11:59:16,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 512. [2023-11-26 11:59:16,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 490 states have (on average 1.4816326530612245) internal successors, (726), 506 states have internal predecessors, (726), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:59:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 752 transitions. [2023-11-26 11:59:16,597 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 752 transitions. Word has length 93 [2023-11-26 11:59:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:16,599 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 752 transitions. [2023-11-26 11:59:16,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:16,600 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 752 transitions. [2023-11-26 11:59:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-26 11:59:16,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:16,601 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:16,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:16,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:16,810 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:16,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:16,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1919576349, now seen corresponding path program 1 times [2023-11-26 11:59:16,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:16,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956295923] [2023-11-26 11:59:16,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:16,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:16,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:16,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135957742] [2023-11-26 11:59:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:16,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:16,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:16,874 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:16,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:59:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:17,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:59:17,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:17,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-26 11:59:17,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 11:59:17,702 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:17,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:17,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956295923] [2023-11-26 11:59:17,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:17,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135957742] [2023-11-26 11:59:17,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135957742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:17,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:17,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:17,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525680123] [2023-11-26 11:59:17,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:17,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:17,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:17,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:17,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:17,705 INFO L87 Difference]: Start difference. First operand 512 states and 752 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:17,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:17,974 INFO L93 Difference]: Finished difference Result 691 states and 1029 transitions. [2023-11-26 11:59:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2023-11-26 11:59:17,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:17,979 INFO L225 Difference]: With dead ends: 691 [2023-11-26 11:59:17,979 INFO L226 Difference]: Without dead ends: 690 [2023-11-26 11:59:17,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:59:17,980 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 668 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:17,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1432 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:17,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-11-26 11:59:17,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 511. [2023-11-26 11:59:18,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 490 states have (on average 1.4795918367346939) internal successors, (725), 505 states have internal predecessors, (725), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:59:18,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 751 transitions. [2023-11-26 11:59:18,004 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 751 transitions. Word has length 94 [2023-11-26 11:59:18,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:18,005 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 751 transitions. [2023-11-26 11:59:18,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:18,005 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 751 transitions. [2023-11-26 11:59:18,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-26 11:59:18,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:18,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:18,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:18,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:59:18,214 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:18,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:18,215 INFO L85 PathProgramCache]: Analyzing trace with hash -495826059, now seen corresponding path program 1 times [2023-11-26 11:59:18,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:18,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868036228] [2023-11-26 11:59:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:18,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:18,271 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:18,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [686060625] [2023-11-26 11:59:18,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:18,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:18,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:18,273 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:18,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:59:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:18,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:59:18,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:18,930 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:18,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:18,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:18,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868036228] [2023-11-26 11:59:18,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:18,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686060625] [2023-11-26 11:59:18,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686060625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:18,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:18,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:59:18,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382058085] [2023-11-26 11:59:18,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:18,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:18,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:18,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:18,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:18,935 INFO L87 Difference]: Start difference. First operand 511 states and 751 transitions. Second operand has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:18,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:18,998 INFO L93 Difference]: Finished difference Result 947 states and 1403 transitions. [2023-11-26 11:59:18,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:18,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 99 [2023-11-26 11:59:18,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:19,002 INFO L225 Difference]: With dead ends: 947 [2023-11-26 11:59:19,002 INFO L226 Difference]: Without dead ends: 513 [2023-11-26 11:59:19,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:19,004 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 1 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:19,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1292 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:19,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-11-26 11:59:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2023-11-26 11:59:19,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 491 states have (on average 1.4806517311608962) internal successors, (727), 507 states have internal predecessors, (727), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-26 11:59:19,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 754 transitions. [2023-11-26 11:59:19,025 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 754 transitions. Word has length 99 [2023-11-26 11:59:19,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:19,026 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 754 transitions. [2023-11-26 11:59:19,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.666666666666668) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:19,026 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 754 transitions. [2023-11-26 11:59:19,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-26 11:59:19,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:19,028 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:19,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:19,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:59:19,237 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:19,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:19,238 INFO L85 PathProgramCache]: Analyzing trace with hash -86227941, now seen corresponding path program 1 times [2023-11-26 11:59:19,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:19,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551585386] [2023-11-26 11:59:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:19,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:19,328 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:19,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972422070] [2023-11-26 11:59:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:19,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:19,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:19,338 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:19,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:59:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:19,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-26 11:59:19,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:19,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-26 11:59:19,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-26 11:59:19,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-26 11:59:20,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:59:20,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-26 11:59:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 11:59:20,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:20,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:20,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551585386] [2023-11-26 11:59:20,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:20,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972422070] [2023-11-26 11:59:20,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972422070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:20,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:20,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 11:59:20,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367609012] [2023-11-26 11:59:20,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:20,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:59:20,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:20,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:59:20,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:59:20,597 INFO L87 Difference]: Start difference. First operand 513 states and 754 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:22,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:22,831 INFO L93 Difference]: Finished difference Result 1223 states and 1822 transitions. [2023-11-26 11:59:22,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:59:22,832 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-26 11:59:22,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:22,837 INFO L225 Difference]: With dead ends: 1223 [2023-11-26 11:59:22,837 INFO L226 Difference]: Without dead ends: 748 [2023-11-26 11:59:22,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-26 11:59:22,839 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 500 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:22,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 2795 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-26 11:59:22,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-26 11:59:22,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 513. [2023-11-26 11:59:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 491 states have (on average 1.4786150712830957) internal successors, (726), 507 states have internal predecessors, (726), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-26 11:59:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 753 transitions. [2023-11-26 11:59:22,866 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 753 transitions. Word has length 101 [2023-11-26 11:59:22,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:22,866 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 753 transitions. [2023-11-26 11:59:22,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:22,867 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 753 transitions. [2023-11-26 11:59:22,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-26 11:59:22,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:22,868 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:22,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:23,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 11:59:23,077 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 11:59:23,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:23,078 INFO L85 PathProgramCache]: Analyzing trace with hash -272691577, now seen corresponding path program 1 times [2023-11-26 11:59:23,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:23,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028571649] [2023-11-26 11:59:23,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:23,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:23,138 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:23,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871737148] [2023-11-26 11:59:23,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:23,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:23,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:23,141 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:23,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7e4ea21-8b9e-4fab-9f18-56312649f539/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:59:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:23,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-26 11:59:23,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:24,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:59:24,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 22 [2023-11-26 11:59:32,658 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-26 11:59:45,072 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-26 11:59:53,126 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)