./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu --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 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:04,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:05,095 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:57:05,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:05,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:05,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:05,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:05,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:05,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:05,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:05,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:05,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:05,147 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:05,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:05,152 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:05,153 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:05,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:05,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:05,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:05,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:05,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:05,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:05,156 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:57:05,157 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:57:05,157 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:05,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:05,158 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:05,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:05,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:05,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:05,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:05,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:05,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:05,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:05,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:05,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:05,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:05,163 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:05,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:05,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:05,163 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:05,164 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_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758 [2023-11-19 07:57:05,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:05,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:05,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:05,503 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:05,504 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:05,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i [2023-11-19 07:57:08,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:09,034 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:09,035 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-1.i [2023-11-19 07:57:09,071 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/data/274e0db62/c437e87ff42a4f8da5f5b47ca95ebd10/FLAGa67109239 [2023-11-19 07:57:09,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/data/274e0db62/c437e87ff42a4f8da5f5b47ca95ebd10 [2023-11-19 07:57:09,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:09,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:09,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:09,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:09,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:09,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:09" (1/1) ... [2023-11-19 07:57:09,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ae49ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:09, skipping insertion in model container [2023-11-19 07:57:09,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:09" (1/1) ... [2023-11-19 07:57:09,186 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:09,507 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:57:09,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:09,892 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:09,907 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:57:10,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:10,147 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:10,148 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:10,156 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:10,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10 WrapperNode [2023-11-19 07:57:10,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:10,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:10,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:10,160 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:10,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,323 INFO L138 Inliner]: procedures = 208, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1193 [2023-11-19 07:57:10,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:10,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:10,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:10,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:10,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:10,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:10,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:10,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:10,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:10,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:10,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:10,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:57:10,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:57:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:57:10,594 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:57:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:57:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:57:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:57:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:57:10,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:57:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:57:10,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:10,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:10,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:10,843 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:10,847 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:12,526 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:12,547 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:12,548 INFO L302 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-19 07:57:12,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:12 BoogieIcfgContainer [2023-11-19 07:57:12,561 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:12,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:12,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:12,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:12,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:09" (1/3) ... [2023-11-19 07:57:12,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710d6e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:12, skipping insertion in model container [2023-11-19 07:57:12,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (2/3) ... [2023-11-19 07:57:12,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710d6e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:12, skipping insertion in model container [2023-11-19 07:57:12,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:12" (3/3) ... [2023-11-19 07:57:12,572 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test2-1.i [2023-11-19 07:57:12,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:12,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:57:12,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:12,685 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;@7ca314a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:12,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-19 07:57:12,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 337 states, 326 states have (on average 1.7024539877300613) internal successors, (555), 332 states have internal predecessors, (555), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:57:12,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:12,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:12,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:12,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:12,712 INFO L85 PathProgramCache]: Analyzing trace with hash -17045365, now seen corresponding path program 1 times [2023-11-19 07:57:12,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:12,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886434294] [2023-11-19 07:57:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:12,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:12,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:12,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886434294] [2023-11-19 07:57:12,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:57:12,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782177459] [2023-11-19 07:57:12,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:12,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:12,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:12,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:13,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:57:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:57:13,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:13,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:13,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:13,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782177459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:13,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:13,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:13,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753684898] [2023-11-19 07:57:13,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:13,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:57:13,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:13,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:57:13,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:57:13,233 INFO L87 Difference]: Start difference. First operand has 337 states, 326 states have (on average 1.7024539877300613) internal successors, (555), 332 states have internal predecessors, (555), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-19 07:57:13,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:13,338 INFO L93 Difference]: Finished difference Result 670 states and 1117 transitions. [2023-11-19 07:57:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:57:13,340 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:57:13,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:13,354 INFO L225 Difference]: With dead ends: 670 [2023-11-19 07:57:13,354 INFO L226 Difference]: Without dead ends: 331 [2023-11-19 07:57:13,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:57:13,363 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:13,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:13,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-19 07:57:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2023-11-19 07:57:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 321 states have (on average 1.5202492211838006) internal successors, (488), 326 states have internal predecessors, (488), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 494 transitions. [2023-11-19 07:57:13,435 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 494 transitions. Word has length 8 [2023-11-19 07:57:13,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:13,435 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 494 transitions. [2023-11-19 07:57:13,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-19 07:57:13,436 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 494 transitions. [2023-11-19 07:57:13,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:57:13,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:13,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:13,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:13,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:57:13,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:13,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash -17043443, now seen corresponding path program 1 times [2023-11-19 07:57:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:13,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902437537] [2023-11-19 07:57:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:13,669 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:13,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677778640] [2023-11-19 07:57:13,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:13,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:13,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:13,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:13,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:57:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:57:13,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:13,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-19 07:57:13,949 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 [2023-11-19 07:57:14,007 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 07:57:14,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-19 07:57:14,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:57:14,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2023-11-19 07:57:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:14,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:14,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:14,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902437537] [2023-11-19 07:57:14,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:14,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677778640] [2023-11-19 07:57:14,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677778640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:14,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:14,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:14,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030659261] [2023-11-19 07:57:14,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:14,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:14,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:14,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:14,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:14,088 INFO L87 Difference]: Start difference. First operand 331 states and 494 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-19 07:57:16,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:16,434 INFO L93 Difference]: Finished difference Result 914 states and 1382 transitions. [2023-11-19 07:57:16,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:16,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:57:16,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:16,451 INFO L225 Difference]: With dead ends: 914 [2023-11-19 07:57:16,451 INFO L226 Difference]: Without dead ends: 912 [2023-11-19 07:57:16,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:16,453 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 1039 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:16,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 2177 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 07:57:16,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2023-11-19 07:57:16,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 337. [2023-11-19 07:57:16,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 327 states have (on average 1.5137614678899083) internal successors, (495), 332 states have internal predecessors, (495), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 501 transitions. [2023-11-19 07:57:16,489 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 501 transitions. Word has length 8 [2023-11-19 07:57:16,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:16,490 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 501 transitions. [2023-11-19 07:57:16,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-19 07:57:16,490 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 501 transitions. [2023-11-19 07:57:16,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:57:16,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:16,495 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] [2023-11-19 07:57:16,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:16,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 07:57:16,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:16,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:16,717 INFO L85 PathProgramCache]: Analyzing trace with hash 163176087, now seen corresponding path program 1 times [2023-11-19 07:57:16,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:16,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505195867] [2023-11-19 07:57:16,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:16,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:17,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:17,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505195867] [2023-11-19 07:57:17,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505195867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:17,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:17,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:17,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926278076] [2023-11-19 07:57:17,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:17,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:17,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:17,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:17,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:17,134 INFO L87 Difference]: Start difference. First operand 337 states and 501 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2023-11-19 07:57:17,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:17,243 INFO L93 Difference]: Finished difference Result 483 states and 722 transitions. [2023-11-19 07:57:17,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:57:17,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 68 [2023-11-19 07:57:17,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:17,247 INFO L225 Difference]: With dead ends: 483 [2023-11-19 07:57:17,247 INFO L226 Difference]: Without dead ends: 341 [2023-11-19 07:57:17,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:17,249 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 165 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:17,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1247 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-19 07:57:17,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 337. [2023-11-19 07:57:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 327 states have (on average 1.492354740061162) internal successors, (488), 332 states have internal predecessors, (488), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:17,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 494 transitions. [2023-11-19 07:57:17,270 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 494 transitions. Word has length 68 [2023-11-19 07:57:17,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:17,270 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 494 transitions. [2023-11-19 07:57:17,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2023-11-19 07:57:17,271 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 494 transitions. [2023-11-19 07:57:17,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:57:17,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:17,275 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] [2023-11-19 07:57:17,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:57:17,276 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:17,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:17,277 INFO L85 PathProgramCache]: Analyzing trace with hash -54149597, now seen corresponding path program 1 times [2023-11-19 07:57:17,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:17,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518875134] [2023-11-19 07:57:17,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:17,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:17,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:17,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518875134] [2023-11-19 07:57:17,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518875134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:17,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:17,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:17,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369005261] [2023-11-19 07:57:17,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:17,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:17,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:17,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:17,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:17,729 INFO L87 Difference]: Start difference. First operand 337 states and 494 transitions. Second operand has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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) [2023-11-19 07:57:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:18,067 INFO L93 Difference]: Finished difference Result 480 states and 705 transitions. [2023-11-19 07:57:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:57:18,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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 68 [2023-11-19 07:57:18,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:18,072 INFO L225 Difference]: With dead ends: 480 [2023-11-19 07:57:18,072 INFO L226 Difference]: Without dead ends: 478 [2023-11-19 07:57:18,073 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 [2023-11-19 07:57:18,074 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 153 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:18,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1355 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:18,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-11-19 07:57:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 477. [2023-11-19 07:57:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 467 states have (on average 1.4903640256959314) internal successors, (696), 472 states have internal predecessors, (696), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 702 transitions. [2023-11-19 07:57:18,105 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 702 transitions. Word has length 68 [2023-11-19 07:57:18,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:18,106 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 702 transitions. [2023-11-19 07:57:18,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 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) [2023-11-19 07:57:18,106 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 702 transitions. [2023-11-19 07:57:18,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-19 07:57:18,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:18,118 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, 1, 1] [2023-11-19 07:57:18,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:57:18,119 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:18,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:18,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1267634048, now seen corresponding path program 1 times [2023-11-19 07:57:18,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:18,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882303861] [2023-11-19 07:57:18,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:18,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:18,187 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:18,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018167643] [2023-11-19 07:57:18,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:18,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:18,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:18,193 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:18,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:57:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:18,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:18,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:18,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:18,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:18,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882303861] [2023-11-19 07:57:18,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:18,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018167643] [2023-11-19 07:57:18,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018167643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:18,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:18,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:18,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32972388] [2023-11-19 07:57:18,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:18,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:18,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:18,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:18,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:18,484 INFO L87 Difference]: Start difference. First operand 477 states and 702 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2023-11-19 07:57:18,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:18,582 INFO L93 Difference]: Finished difference Result 966 states and 1425 transitions. [2023-11-19 07:57:18,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:18,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2023-11-19 07:57:18,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:18,600 INFO L225 Difference]: With dead ends: 966 [2023-11-19 07:57:18,600 INFO L226 Difference]: Without dead ends: 498 [2023-11-19 07:57:18,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:18,603 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 9 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:18,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 919 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-11-19 07:57:18,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 497. [2023-11-19 07:57:18,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 487 states have (on average 1.4702258726899384) internal successors, (716), 492 states have internal predecessors, (716), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 722 transitions. [2023-11-19 07:57:18,625 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 722 transitions. Word has length 82 [2023-11-19 07:57:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:18,626 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 722 transitions. [2023-11-19 07:57:18,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2023-11-19 07:57:18,626 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 722 transitions. [2023-11-19 07:57:18,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-19 07:57:18,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:18,628 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, 1, 1] [2023-11-19 07:57:18,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:18,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:18,851 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:18,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:18,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1308308798, now seen corresponding path program 1 times [2023-11-19 07:57:18,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:18,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597376395] [2023-11-19 07:57:18,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:18,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:18,912 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:18,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034651075] [2023-11-19 07:57:18,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:18,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:18,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:18,914 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:18,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:57:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:19,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:19,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:19,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:19,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:19,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:19,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597376395] [2023-11-19 07:57:19,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:19,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034651075] [2023-11-19 07:57:19,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034651075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:19,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:19,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:19,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80444158] [2023-11-19 07:57:19,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:19,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:19,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:19,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:19,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:19,224 INFO L87 Difference]: Start difference. First operand 497 states and 722 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2023-11-19 07:57:19,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:19,324 INFO L93 Difference]: Finished difference Result 972 states and 1421 transitions. [2023-11-19 07:57:19,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:57:19,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 82 [2023-11-19 07:57:19,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:19,329 INFO L225 Difference]: With dead ends: 972 [2023-11-19 07:57:19,329 INFO L226 Difference]: Without dead ends: 484 [2023-11-19 07:57:19,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:19,331 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 165 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:19,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1226 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:19,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-19 07:57:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 483. [2023-11-19 07:57:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 473 states have (on average 1.4693446088794926) internal successors, (695), 478 states have internal predecessors, (695), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:19,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 701 transitions. [2023-11-19 07:57:19,352 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 701 transitions. Word has length 82 [2023-11-19 07:57:19,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:19,353 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 701 transitions. [2023-11-19 07:57:19,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2023-11-19 07:57:19,353 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 701 transitions. [2023-11-19 07:57:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-19 07:57:19,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:19,355 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, 1, 1] [2023-11-19 07:57:19,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:19,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:57:19,577 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:19,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:19,577 INFO L85 PathProgramCache]: Analyzing trace with hash 214771060, now seen corresponding path program 1 times [2023-11-19 07:57:19,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:19,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521445657] [2023-11-19 07:57:19,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:19,638 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:19,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125395834] [2023-11-19 07:57:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:19,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:19,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:19,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:19,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:57:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:19,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:19,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:20,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:20,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:20,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:20,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521445657] [2023-11-19 07:57:20,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:20,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125395834] [2023-11-19 07:57:20,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125395834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:20,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:20,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:20,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543249917] [2023-11-19 07:57:20,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:20,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:20,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:20,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:20,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:20,231 INFO L87 Difference]: Start difference. First operand 483 states and 701 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2023-11-19 07:57:20,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:20,334 INFO L93 Difference]: Finished difference Result 1315 states and 1930 transitions. [2023-11-19 07:57:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:20,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2023-11-19 07:57:20,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:20,341 INFO L225 Difference]: With dead ends: 1315 [2023-11-19 07:57:20,341 INFO L226 Difference]: Without dead ends: 841 [2023-11-19 07:57:20,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:20,343 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 306 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:20,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 935 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:20,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2023-11-19 07:57:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 839. [2023-11-19 07:57:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 829 states have (on average 1.4837153196622437) internal successors, (1230), 834 states have internal predecessors, (1230), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:20,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1236 transitions. [2023-11-19 07:57:20,379 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1236 transitions. Word has length 82 [2023-11-19 07:57:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:20,379 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1236 transitions. [2023-11-19 07:57:20,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2023-11-19 07:57:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1236 transitions. [2023-11-19 07:57:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 07:57:20,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:20,382 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-11-19 07:57:20,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:20,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:20,605 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:20,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:20,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2131671207, now seen corresponding path program 1 times [2023-11-19 07:57:20,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:20,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004138075] [2023-11-19 07:57:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:20,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:20,666 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:20,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900218829] [2023-11-19 07:57:20,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:20,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:20,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:20,668 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:20,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:57:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:21,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-19 07:57:21,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:21,043 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 [2023-11-19 07:57:21,071 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-19 07:57:21,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:57:21,135 INFO L349 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2023-11-19 07:57:21,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 42 [2023-11-19 07:57:21,800 INFO L349 Elim1Store]: treesize reduction 12, result has 78.2 percent of original size [2023-11-19 07:57:21,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 52 treesize of output 68 [2023-11-19 07:57:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:57:22,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:22,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:22,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004138075] [2023-11-19 07:57:22,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:22,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900218829] [2023-11-19 07:57:22,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900218829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:22,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:22,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:57:22,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778444002] [2023-11-19 07:57:22,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:22,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:57:22,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:22,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:57:22,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:57:22,365 INFO L87 Difference]: Start difference. First operand 839 states and 1236 transitions. Second operand has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 11 states have internal predecessors, (90), 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) [2023-11-19 07:57:24,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:24,840 INFO L93 Difference]: Finished difference Result 1525 states and 2233 transitions. [2023-11-19 07:57:24,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:57:24,841 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 11 states have internal predecessors, (90), 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 97 [2023-11-19 07:57:24,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:24,847 INFO L225 Difference]: With dead ends: 1525 [2023-11-19 07:57:24,847 INFO L226 Difference]: Without dead ends: 883 [2023-11-19 07:57:24,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:57:24,850 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 429 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:24,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 2616 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:57:24,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2023-11-19 07:57:24,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 871. [2023-11-19 07:57:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 861 states have (on average 1.4715447154471544) internal successors, (1267), 866 states have internal predecessors, (1267), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1273 transitions. [2023-11-19 07:57:24,887 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1273 transitions. Word has length 97 [2023-11-19 07:57:24,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:24,888 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1273 transitions. [2023-11-19 07:57:24,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 11 states have internal predecessors, (90), 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) [2023-11-19 07:57:24,888 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1273 transitions. [2023-11-19 07:57:24,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 07:57:24,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:24,890 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-11-19 07:57:24,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:25,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:25,113 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:25,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:25,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1670669915, now seen corresponding path program 1 times [2023-11-19 07:57:25,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:25,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259722702] [2023-11-19 07:57:25,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:25,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:25,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:25,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110574963] [2023-11-19 07:57:25,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:25,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:25,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:25,184 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:25,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:57:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:25,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:57:25,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:57:25,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:25,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:25,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259722702] [2023-11-19 07:57:25,619 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:25,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110574963] [2023-11-19 07:57:25,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110574963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:25,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:25,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:25,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612216223] [2023-11-19 07:57:25,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:25,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:25,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:25,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:25,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:25,622 INFO L87 Difference]: Start difference. First operand 871 states and 1273 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2023-11-19 07:57:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:25,754 INFO L93 Difference]: Finished difference Result 1713 states and 2532 transitions. [2023-11-19 07:57:25,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:25,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 97 [2023-11-19 07:57:25,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:25,761 INFO L225 Difference]: With dead ends: 1713 [2023-11-19 07:57:25,761 INFO L226 Difference]: Without dead ends: 1059 [2023-11-19 07:57:25,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:25,764 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 148 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:25,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1379 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:25,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2023-11-19 07:57:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 894. [2023-11-19 07:57:25,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 884 states have (on average 1.4581447963800904) internal successors, (1289), 889 states have internal predecessors, (1289), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:57:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1295 transitions. [2023-11-19 07:57:25,808 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1295 transitions. Word has length 97 [2023-11-19 07:57:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:25,808 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1295 transitions. [2023-11-19 07:57:25,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2023-11-19 07:57:25,809 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1295 transitions. [2023-11-19 07:57:25,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:57:25,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:25,811 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-19 07:57:25,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:26,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:26,020 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:26,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash -830223771, now seen corresponding path program 1 times [2023-11-19 07:57:26,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:26,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088791800] [2023-11-19 07:57:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:26,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:26,085 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:26,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345551301] [2023-11-19 07:57:26,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:26,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:26,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:26,086 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:26,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:57:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:57:26,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:57:26,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:26,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:26,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088791800] [2023-11-19 07:57:26,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:26,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345551301] [2023-11-19 07:57:26,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345551301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:26,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:26,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:26,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442145021] [2023-11-19 07:57:26,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:26,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:26,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:26,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:26,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:26,793 INFO L87 Difference]: Start difference. First operand 894 states and 1295 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:57:26,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:26,847 INFO L93 Difference]: Finished difference Result 1523 states and 2207 transitions. [2023-11-19 07:57:26,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:57:26,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2023-11-19 07:57:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:26,853 INFO L225 Difference]: With dead ends: 1523 [2023-11-19 07:57:26,853 INFO L226 Difference]: Without dead ends: 897 [2023-11-19 07:57:26,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:26,855 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 2 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:26,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1427 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:26,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2023-11-19 07:57:26,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 897. [2023-11-19 07:57:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 886 states have (on average 1.4582392776523703) internal successors, (1292), 892 states have internal predecessors, (1292), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:57:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1299 transitions. [2023-11-19 07:57:26,893 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1299 transitions. Word has length 98 [2023-11-19 07:57:26,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:26,893 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1299 transitions. [2023-11-19 07:57:26,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:57:26,893 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1299 transitions. [2023-11-19 07:57:26,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 07:57:26,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:26,895 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-19 07:57:26,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:27,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:57:27,104 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:27,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:27,104 INFO L85 PathProgramCache]: Analyzing trace with hash 338586819, now seen corresponding path program 1 times [2023-11-19 07:57:27,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:27,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411488007] [2023-11-19 07:57:27,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:27,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:27,162 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:27,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558492308] [2023-11-19 07:57:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:27,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:27,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:27,164 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:27,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:57:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-19 07:57:27,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:27,963 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 [2023-11-19 07:57:27,992 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-19 07:57:27,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:57:28,049 INFO L349 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2023-11-19 07:57:28,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 42 [2023-11-19 07:57:28,561 INFO L349 Elim1Store]: treesize reduction 12, result has 78.2 percent of original size [2023-11-19 07:57:28,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 52 treesize of output 68 [2023-11-19 07:57:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 07:57:28,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:28,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:28,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411488007] [2023-11-19 07:57:28,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:28,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558492308] [2023-11-19 07:57:28,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558492308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:28,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:28,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:57:28,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171481895] [2023-11-19 07:57:28,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:28,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:57:28,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:28,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:57:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:57:28,948 INFO L87 Difference]: Start difference. First operand 897 states and 1299 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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) [2023-11-19 07:57:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:30,640 INFO L93 Difference]: Finished difference Result 1597 states and 2316 transitions. [2023-11-19 07:57:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:57:30,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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 100 [2023-11-19 07:57:30,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:30,646 INFO L225 Difference]: With dead ends: 1597 [2023-11-19 07:57:30,646 INFO L226 Difference]: Without dead ends: 933 [2023-11-19 07:57:30,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:30,649 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 495 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:30,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 2148 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 07:57:30,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2023-11-19 07:57:30,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 910. [2023-11-19 07:57:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 899 states have (on average 1.457174638487208) internal successors, (1310), 905 states have internal predecessors, (1310), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:57:30,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1317 transitions. [2023-11-19 07:57:30,690 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1317 transitions. Word has length 100 [2023-11-19 07:57:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:30,690 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1317 transitions. [2023-11-19 07:57:30,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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) [2023-11-19 07:57:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1317 transitions. [2023-11-19 07:57:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:57:30,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:30,693 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-11-19 07:57:30,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:30,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:30,905 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:30,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1382055340, now seen corresponding path program 1 times [2023-11-19 07:57:30,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:30,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825006149] [2023-11-19 07:57:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:30,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:30,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:30,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [670381356] [2023-11-19 07:57:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:30,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:30,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:30,968 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:30,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:57:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:31,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:57:31,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 07:57:31,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:31,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:31,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825006149] [2023-11-19 07:57:31,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:31,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670381356] [2023-11-19 07:57:31,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670381356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:31,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:31,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047993589] [2023-11-19 07:57:31,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:31,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:31,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:31,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:31,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:31,609 INFO L87 Difference]: Start difference. First operand 910 states and 1317 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2023-11-19 07:57:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:32,341 INFO L93 Difference]: Finished difference Result 1610 states and 2337 transitions. [2023-11-19 07:57:32,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:57:32,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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 [2023-11-19 07:57:32,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:32,348 INFO L225 Difference]: With dead ends: 1610 [2023-11-19 07:57:32,348 INFO L226 Difference]: Without dead ends: 934 [2023-11-19 07:57:32,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:32,350 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 17 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2237 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:32,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2237 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:57:32,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-11-19 07:57:32,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 924. [2023-11-19 07:57:32,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 913 states have (on average 1.4545454545454546) internal successors, (1328), 919 states have internal predecessors, (1328), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:57:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1335 transitions. [2023-11-19 07:57:32,391 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1335 transitions. Word has length 101 [2023-11-19 07:57:32,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:32,391 INFO L495 AbstractCegarLoop]: Abstraction has 924 states and 1335 transitions. [2023-11-19 07:57:32,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2023-11-19 07:57:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1335 transitions. [2023-11-19 07:57:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:57:32,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:32,394 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-11-19 07:57:32,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:32,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:57:32,617 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:32,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1319340944, now seen corresponding path program 1 times [2023-11-19 07:57:32,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:32,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282372143] [2023-11-19 07:57:32,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:32,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:32,680 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:32,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639860981] [2023-11-19 07:57:32,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:32,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:32,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:32,681 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:32,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:57:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:33,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:57:33,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:57:33,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:57:33,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:33,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282372143] [2023-11-19 07:57:33,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:33,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639860981] [2023-11-19 07:57:33,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639860981] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:33,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:33,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 07:57:33,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063518115] [2023-11-19 07:57:33,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:33,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:57:33,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:33,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:57:33,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:33,396 INFO L87 Difference]: Start difference. First operand 924 states and 1335 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:57:33,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:33,553 INFO L93 Difference]: Finished difference Result 1582 states and 2288 transitions. [2023-11-19 07:57:33,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:57:33,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 101 [2023-11-19 07:57:33,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:33,560 INFO L225 Difference]: With dead ends: 1582 [2023-11-19 07:57:33,560 INFO L226 Difference]: Without dead ends: 933 [2023-11-19 07:57:33,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:57:33,563 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 12 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:33,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1424 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2023-11-19 07:57:33,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 933. [2023-11-19 07:57:33,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 921 states have (on average 1.4549402823018458) internal successors, (1340), 927 states have internal predecessors, (1340), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 07:57:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1348 transitions. [2023-11-19 07:57:33,604 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1348 transitions. Word has length 101 [2023-11-19 07:57:33,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:33,604 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1348 transitions. [2023-11-19 07:57:33,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:57:33,606 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1348 transitions. [2023-11-19 07:57:33,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 07:57:33,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:33,608 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1] [2023-11-19 07:57:33,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:33,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:33,818 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:33,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:33,819 INFO L85 PathProgramCache]: Analyzing trace with hash 987902066, now seen corresponding path program 2 times [2023-11-19 07:57:33,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:33,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945653731] [2023-11-19 07:57:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:33,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:33,954 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:33,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738376331] [2023-11-19 07:57:33,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:57:33,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:33,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:33,956 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:33,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:57:34,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:57:34,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:34,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 07:57:34,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-19 07:57:42,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:42,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:42,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945653731] [2023-11-19 07:57:42,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:42,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738376331] [2023-11-19 07:57:42,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738376331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:42,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:42,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:42,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075013004] [2023-11-19 07:57:42,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:42,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:42,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:42,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:42,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:42,130 INFO L87 Difference]: Start difference. First operand 933 states and 1348 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2023-11-19 07:57:43,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:43,937 INFO L93 Difference]: Finished difference Result 1634 states and 2365 transitions. [2023-11-19 07:57:43,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:57:43,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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 105 [2023-11-19 07:57:43,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:43,944 INFO L225 Difference]: With dead ends: 1634 [2023-11-19 07:57:43,944 INFO L226 Difference]: Without dead ends: 947 [2023-11-19 07:57:43,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:43,947 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 16 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:43,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2231 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 07:57:43,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2023-11-19 07:57:43,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 933. [2023-11-19 07:57:43,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 921 states have (on average 1.4549402823018458) internal successors, (1340), 927 states have internal predecessors, (1340), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 07:57:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1348 transitions. [2023-11-19 07:57:43,994 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1348 transitions. Word has length 105 [2023-11-19 07:57:43,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:43,994 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1348 transitions. [2023-11-19 07:57:43,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2023-11-19 07:57:43,995 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1348 transitions. [2023-11-19 07:57:43,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 07:57:43,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:43,997 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:44,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:44,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:44,212 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:44,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:44,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1731183638, now seen corresponding path program 1 times [2023-11-19 07:57:44,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:44,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580300850] [2023-11-19 07:57:44,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:44,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:44,273 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:44,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391833299] [2023-11-19 07:57:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:44,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:44,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:44,275 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:44,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:57:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:44,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 07:57:44,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:44,900 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:57:44,900 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:45,056 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 07:57:45,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:45,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580300850] [2023-11-19 07:57:45,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:45,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391833299] [2023-11-19 07:57:45,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391833299] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:45,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:45,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-11-19 07:57:45,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555665392] [2023-11-19 07:57:45,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:45,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:57:45,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:45,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:57:45,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:57:45,059 INFO L87 Difference]: Start difference. First operand 933 states and 1348 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:57:45,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:45,403 INFO L93 Difference]: Finished difference Result 1557 states and 2252 transitions. [2023-11-19 07:57:45,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:45,404 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 106 [2023-11-19 07:57:45,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:45,409 INFO L225 Difference]: With dead ends: 1557 [2023-11-19 07:57:45,410 INFO L226 Difference]: Without dead ends: 787 [2023-11-19 07:57:45,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=199, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:57:45,414 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 103 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 3456 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:45,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 3456 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:57:45,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2023-11-19 07:57:45,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 785. [2023-11-19 07:57:45,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 773 states have (on average 1.446313065976714) internal successors, (1118), 779 states have internal predecessors, (1118), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:57:45,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1125 transitions. [2023-11-19 07:57:45,446 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1125 transitions. Word has length 106 [2023-11-19 07:57:45,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:45,447 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1125 transitions. [2023-11-19 07:57:45,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:57:45,447 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1125 transitions. [2023-11-19 07:57:45,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-19 07:57:45,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:45,449 INFO L195 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:45,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:45,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:45,664 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:45,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:45,665 INFO L85 PathProgramCache]: Analyzing trace with hash -110748394, now seen corresponding path program 2 times [2023-11-19 07:57:45,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:45,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377915097] [2023-11-19 07:57:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:45,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:45,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:45,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591733090] [2023-11-19 07:57:45,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:57:45,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:45,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:45,734 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:45,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:57:46,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:57:46,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:57:46,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-19 07:57:46,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-19 07:57:46,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:46,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:46,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377915097] [2023-11-19 07:57:46,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:46,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591733090] [2023-11-19 07:57:46,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591733090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:46,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:46,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:57:46,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881792044] [2023-11-19 07:57:46,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:46,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:46,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:46,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:46,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:46,595 INFO L87 Difference]: Start difference. First operand 785 states and 1125 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 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) [2023-11-19 07:57:47,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:47,769 INFO L93 Difference]: Finished difference Result 1410 states and 2023 transitions. [2023-11-19 07:57:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:57:47,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 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 110 [2023-11-19 07:57:47,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:47,774 INFO L225 Difference]: With dead ends: 1410 [2023-11-19 07:57:47,775 INFO L226 Difference]: Without dead ends: 795 [2023-11-19 07:57:47,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:47,777 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 14 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:47,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2738 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:57:47,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-11-19 07:57:47,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 791. [2023-11-19 07:57:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 779 states have (on average 1.4428754813863929) internal successors, (1124), 785 states have internal predecessors, (1124), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:57:47,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1131 transitions. [2023-11-19 07:57:47,812 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1131 transitions. Word has length 110 [2023-11-19 07:57:47,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:47,812 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 1131 transitions. [2023-11-19 07:57:47,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 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) [2023-11-19 07:57:47,813 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1131 transitions. [2023-11-19 07:57:47,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:57:47,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:47,815 INFO L195 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:47,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:48,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:48,028 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:48,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:48,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1287907531, now seen corresponding path program 1 times [2023-11-19 07:57:48,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:48,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158814377] [2023-11-19 07:57:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:48,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:48,096 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:48,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1002093875] [2023-11-19 07:57:48,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:48,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:48,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:48,098 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:48,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:57:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:48,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 07:57:48,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 37 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:57:48,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:57:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 37 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:57:49,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:49,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158814377] [2023-11-19 07:57:49,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:49,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002093875] [2023-11-19 07:57:49,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002093875] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:57:49,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:57:49,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-11-19 07:57:49,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378113450] [2023-11-19 07:57:49,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:57:49,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:57:49,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:49,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:57:49,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:57:49,007 INFO L87 Difference]: Start difference. First operand 791 states and 1131 transitions. Second operand has 15 states, 15 states have (on average 7.4) internal successors, (111), 15 states have internal predecessors, (111), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:57:49,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:49,636 INFO L93 Difference]: Finished difference Result 1394 states and 1993 transitions. [2023-11-19 07:57:49,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 07:57:49,637 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.4) internal successors, (111), 15 states have internal predecessors, (111), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 111 [2023-11-19 07:57:49,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:49,642 INFO L225 Difference]: With dead ends: 1394 [2023-11-19 07:57:49,642 INFO L226 Difference]: Without dead ends: 799 [2023-11-19 07:57:49,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=436, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:57:49,645 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 110 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:49,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 3071 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:49,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-11-19 07:57:49,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 797. [2023-11-19 07:57:49,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 785 states have (on average 1.440764331210191) internal successors, (1131), 791 states have internal predecessors, (1131), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:57:49,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1138 transitions. [2023-11-19 07:57:49,676 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1138 transitions. Word has length 111 [2023-11-19 07:57:49,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:49,677 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1138 transitions. [2023-11-19 07:57:49,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.4) internal successors, (111), 15 states have internal predecessors, (111), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:57:49,677 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1138 transitions. [2023-11-19 07:57:49,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 07:57:49,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:49,679 INFO L195 NwaCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:49,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:49,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:57:49,904 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 07:57:49,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:49,905 INFO L85 PathProgramCache]: Analyzing trace with hash -797684277, now seen corresponding path program 2 times [2023-11-19 07:57:49,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:49,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205952901] [2023-11-19 07:57:49,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:49,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:49,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:49,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416208853] [2023-11-19 07:57:49,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:57:49,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:49,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:49,983 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:50,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1323b424-8c09-46e5-9084-4ba0d127d6eb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process