./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ --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 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:43:22,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:43:22,166 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 21:43:22,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:43:22,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:43:22,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:43:22,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:43:22,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:43:22,221 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:43:22,226 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:43:22,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:43:22,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:43:22,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:43:22,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:43:22,231 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:43:22,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:43:22,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:43:22,233 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:43:22,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:43:22,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:43:22,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:43:22,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:43:22,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:43:22,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:43:22,236 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:43:22,237 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:43:22,237 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:43:22,238 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:43:22,238 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:43:22,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:43:22,241 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:43:22,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:43:22,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:43:22,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:43:22,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:43:22,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:43:22,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:43:22,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:43:22,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:43:22,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:43:22,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:43:22,245 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:43:22,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:43:22,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:43:22,246 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_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2023-11-23 21:43:22,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:43:22,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:43:22,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:43:22,582 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:43:22,583 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:43:22,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-23 21:43:25,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:43:26,140 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:43:26,141 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-23 21:43:26,179 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/data/f1dac85ad/366f319d881b42cd9ce7f3d19aa81428/FLAGc5d848720 [2023-11-23 21:43:26,201 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/data/f1dac85ad/366f319d881b42cd9ce7f3d19aa81428 [2023-11-23 21:43:26,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:43:26,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:43:26,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:43:26,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:43:26,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:43:26,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:43:26" (1/1) ... [2023-11-23 21:43:26,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e89c83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:26, skipping insertion in model container [2023-11-23 21:43:26,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:43:26" (1/1) ... [2023-11-23 21:43:26,312 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:43:26,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:43:26,969 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:43:27,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:43:27,165 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:43:27,174 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:43:27,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27 WrapperNode [2023-11-23 21:43:27,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:43:27,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:43:27,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:43:27,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:43:27,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,342 INFO L138 Inliner]: procedures = 208, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1215 [2023-11-23 21:43:27,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:43:27,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:43:27,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:43:27,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:43:27,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,385 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,499 INFO L189 HeapSplitter]: Split 213 memory accesses to 5 slices as follows [34, 2, 5, 172, 0] [2023-11-23 21:43:27,499 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:43:27,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:43:27,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:43:27,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:43:27,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (1/1) ... [2023-11-23 21:43:27,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:43:27,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:27,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:43:27,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:43:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-23 21:43:27,697 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-23 21:43:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-23 21:43:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-23 21:43:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-23 21:43:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-23 21:43:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-23 21:43:27,698 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-23 21:43:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-23 21:43:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-23 21:43:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-23 21:43:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-23 21:43:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:43:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:43:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 21:43:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 21:43:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 21:43:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 21:43:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 21:43:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:43:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 21:43:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 21:43:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 21:43:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 21:43:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 21:43:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:43:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:43:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 21:43:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 21:43:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 21:43:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 21:43:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 21:43:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:43:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:43:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 21:43:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 21:43:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 21:43:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 21:43:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 21:43:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:43:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 21:43:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 21:43:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 21:43:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 21:43:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:43:27,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:43:28,007 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:43:28,009 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:43:29,721 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:43:29,780 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:43:29,784 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-23 21:43:29,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:43:29 BoogieIcfgContainer [2023-11-23 21:43:29,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:43:29,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:43:29,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:43:29,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:43:29,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:43:26" (1/3) ... [2023-11-23 21:43:29,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635f825e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:43:29, skipping insertion in model container [2023-11-23 21:43:29,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:43:27" (2/3) ... [2023-11-23 21:43:29,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635f825e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:43:29, skipping insertion in model container [2023-11-23 21:43:29,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:43:29" (3/3) ... [2023-11-23 21:43:29,804 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-1.i [2023-11-23 21:43:29,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:43:29,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-23 21:43:29,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:43:29,924 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;@68c3cd95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:43:29,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-23 21:43:29,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 352 states, 330 states have (on average 1.715151515151515) internal successors, (566), 345 states have internal predecessors, (566), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:43:29,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:43:29,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:29,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:43:29,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:29,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:29,948 INFO L85 PathProgramCache]: Analyzing trace with hash -184244475, now seen corresponding path program 1 times [2023-11-23 21:43:29,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:29,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732287186] [2023-11-23 21:43:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:29,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:30,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:30,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732287186] [2023-11-23 21:43:30,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 21:43:30,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155894936] [2023-11-23 21:43:30,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:30,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:30,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:30,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:30,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:43:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:30,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:43:30,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:43:30,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:43:30,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155894936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:30,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:30,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:43:30,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380611128] [2023-11-23 21:43:30,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:30,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:43:30,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:30,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:43:30,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:43:30,383 INFO L87 Difference]: Start difference. First operand has 352 states, 330 states have (on average 1.715151515151515) internal successors, (566), 345 states have internal predecessors, (566), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:30,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:30,465 INFO L93 Difference]: Finished difference Result 701 states and 1175 transitions. [2023-11-23 21:43:30,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:43:30,467 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:43:30,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:30,481 INFO L225 Difference]: With dead ends: 701 [2023-11-23 21:43:30,481 INFO L226 Difference]: Without dead ends: 345 [2023-11-23 21:43:30,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:43:30,490 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:30,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 519 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:43:30,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-11-23 21:43:30,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2023-11-23 21:43:30,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 327 states have (on average 1.5321100917431192) internal successors, (501), 339 states have internal predecessors, (501), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:43:30,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 517 transitions. [2023-11-23 21:43:30,562 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 517 transitions. Word has length 6 [2023-11-23 21:43:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:30,562 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 517 transitions. [2023-11-23 21:43:30,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:30,563 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 517 transitions. [2023-11-23 21:43:30,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:43:30,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:30,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:43:30,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:43:30,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:43:30,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:30,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:30,770 INFO L85 PathProgramCache]: Analyzing trace with hash -184242553, now seen corresponding path program 1 times [2023-11-23 21:43:30,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:30,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167975980] [2023-11-23 21:43:30,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:30,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:30,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:43:30,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256731131] [2023-11-23 21:43:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:30,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:30,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:30,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:30,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:43:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:31,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:43:31,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:31,102 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 [2023-11-23 21:43:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:43:31,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:43:31,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167975980] [2023-11-23 21:43:31,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:43:31,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256731131] [2023-11-23 21:43:31,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256731131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:31,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:31,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:43:31,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342089100] [2023-11-23 21:43:31,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:31,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:43:31,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:31,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:43:31,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:43:31,154 INFO L87 Difference]: Start difference. First operand 345 states and 517 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:31,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:31,376 INFO L93 Difference]: Finished difference Result 682 states and 1027 transitions. [2023-11-23 21:43:31,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:43:31,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 21:43:31,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:31,383 INFO L225 Difference]: With dead ends: 682 [2023-11-23 21:43:31,383 INFO L226 Difference]: Without dead ends: 680 [2023-11-23 21:43:31,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:43:31,385 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 487 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:31,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1549 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:43:31,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-11-23 21:43:31,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 351. [2023-11-23 21:43:31,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 333 states have (on average 1.5255255255255256) internal successors, (508), 345 states have internal predecessors, (508), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:43:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 524 transitions. [2023-11-23 21:43:31,417 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 524 transitions. Word has length 6 [2023-11-23 21:43:31,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:31,418 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 524 transitions. [2023-11-23 21:43:31,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 524 transitions. [2023-11-23 21:43:31,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 21:43:31,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:31,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:43:31,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:43:31,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:31,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:31,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:31,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1188259531, now seen corresponding path program 1 times [2023-11-23 21:43:31,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:31,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799333816] [2023-11-23 21:43:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:31,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:32,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:43:32,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:32,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799333816] [2023-11-23 21:43:32,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799333816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:32,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:32,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:43:32,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113776887] [2023-11-23 21:43:32,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:32,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:43:32,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:32,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:43:32,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:43:32,123 INFO L87 Difference]: Start difference. First operand 351 states and 524 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:32,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:32,270 INFO L93 Difference]: Finished difference Result 839 states and 1268 transitions. [2023-11-23 21:43:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:43:32,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-11-23 21:43:32,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:32,276 INFO L225 Difference]: With dead ends: 839 [2023-11-23 21:43:32,276 INFO L226 Difference]: Without dead ends: 679 [2023-11-23 21:43:32,278 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 [2023-11-23 21:43:32,279 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 488 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:32,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1556 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:43:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-11-23 21:43:32,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 351. [2023-11-23 21:43:32,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 333 states have (on average 1.5225225225225225) internal successors, (507), 345 states have internal predecessors, (507), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:43:32,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 523 transitions. [2023-11-23 21:43:32,303 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 523 transitions. Word has length 63 [2023-11-23 21:43:32,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:32,303 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 523 transitions. [2023-11-23 21:43:32,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:32,304 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 523 transitions. [2023-11-23 21:43:32,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 21:43:32,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:32,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:43:32,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:43:32,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:32,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:32,308 INFO L85 PathProgramCache]: Analyzing trace with hash -975660358, now seen corresponding path program 1 times [2023-11-23 21:43:32,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:32,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571001632] [2023-11-23 21:43:32,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:32,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:32,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:43:32,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752094148] [2023-11-23 21:43:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:32,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:32,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:32,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:32,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:43:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:32,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:43:32,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:43:32,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:43:32,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:32,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571001632] [2023-11-23 21:43:32,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:43:32,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752094148] [2023-11-23 21:43:32,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752094148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:32,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:32,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:43:32,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422290414] [2023-11-23 21:43:32,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:32,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:43:32,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:32,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:43:32,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:43:32,716 INFO L87 Difference]: Start difference. First operand 351 states and 523 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:32,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:32,809 INFO L93 Difference]: Finished difference Result 716 states and 1070 transitions. [2023-11-23 21:43:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:43:32,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-23 21:43:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:32,813 INFO L225 Difference]: With dead ends: 716 [2023-11-23 21:43:32,813 INFO L226 Difference]: Without dead ends: 372 [2023-11-23 21:43:32,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:43:32,819 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 9 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:32,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 974 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:43:32,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-23 21:43:32,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2023-11-23 21:43:32,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 353 states have (on average 1.4929178470254958) internal successors, (527), 365 states have internal predecessors, (527), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:43:32,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 543 transitions. [2023-11-23 21:43:32,844 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 543 transitions. Word has length 80 [2023-11-23 21:43:32,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:32,844 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 543 transitions. [2023-11-23 21:43:32,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:32,845 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 543 transitions. [2023-11-23 21:43:32,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 21:43:32,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:32,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:43:32,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:43:33,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:33,064 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:33,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:33,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1780966908, now seen corresponding path program 1 times [2023-11-23 21:43:33,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:33,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984998437] [2023-11-23 21:43:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:33,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:33,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:43:33,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2026916512] [2023-11-23 21:43:33,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:33,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:33,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:33,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:33,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:43:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:33,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:43:33,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:43:33,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:43:33,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:33,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984998437] [2023-11-23 21:43:33,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:43:33,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026916512] [2023-11-23 21:43:33,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026916512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:33,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:33,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:43:33,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187701092] [2023-11-23 21:43:33,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:33,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:43:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:33,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:43:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:43:33,489 INFO L87 Difference]: Start difference. First operand 371 states and 543 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:33,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:33,592 INFO L93 Difference]: Finished difference Result 722 states and 1066 transitions. [2023-11-23 21:43:33,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:43:33,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-23 21:43:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:33,596 INFO L225 Difference]: With dead ends: 722 [2023-11-23 21:43:33,596 INFO L226 Difference]: Without dead ends: 358 [2023-11-23 21:43:33,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:43:33,598 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 165 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:33,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1309 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:43:33,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-23 21:43:33,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2023-11-23 21:43:33,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 339 states have (on average 1.4926253687315634) internal successors, (506), 351 states have internal predecessors, (506), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:43:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 522 transitions. [2023-11-23 21:43:33,612 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 522 transitions. Word has length 80 [2023-11-23 21:43:33,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:33,613 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 522 transitions. [2023-11-23 21:43:33,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:33,613 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 522 transitions. [2023-11-23 21:43:33,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 21:43:33,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:33,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:43:33,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:43:33,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:33,836 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:33,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:33,836 INFO L85 PathProgramCache]: Analyzing trace with hash -990920530, now seen corresponding path program 1 times [2023-11-23 21:43:33,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:33,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037930292] [2023-11-23 21:43:33,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:33,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:33,907 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:43:33,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639895165] [2023-11-23 21:43:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:33,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:33,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:33,909 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:33,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:43:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:34,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:43:34,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:43:34,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:43:34,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:34,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037930292] [2023-11-23 21:43:34,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:43:34,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639895165] [2023-11-23 21:43:34,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639895165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:34,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:34,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:43:34,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088216759] [2023-11-23 21:43:34,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:34,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:43:34,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:34,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:43:34,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:43:34,565 INFO L87 Difference]: Start difference. First operand 357 states and 522 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:34,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:34,669 INFO L93 Difference]: Finished difference Result 957 states and 1424 transitions. [2023-11-23 21:43:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:43:34,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-23 21:43:34,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:34,675 INFO L225 Difference]: With dead ends: 957 [2023-11-23 21:43:34,675 INFO L226 Difference]: Without dead ends: 607 [2023-11-23 21:43:34,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:43:34,676 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 323 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:34,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1170 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:43:34,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2023-11-23 21:43:34,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 603. [2023-11-23 21:43:34,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 580 states have (on average 1.5189655172413794) internal successors, (881), 597 states have internal predecessors, (881), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:43:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 907 transitions. [2023-11-23 21:43:34,702 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 907 transitions. Word has length 80 [2023-11-23 21:43:34,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:34,703 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 907 transitions. [2023-11-23 21:43:34,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:43:34,703 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 907 transitions. [2023-11-23 21:43:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 21:43:34,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:34,705 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:43:34,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:43:34,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:34,927 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:34,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:34,927 INFO L85 PathProgramCache]: Analyzing trace with hash -12837435, now seen corresponding path program 1 times [2023-11-23 21:43:34,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:34,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497869962] [2023-11-23 21:43:34,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:34,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:34,998 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:43:34,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1621792756] [2023-11-23 21:43:34,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:34,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:34,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:35,016 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:35,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:43:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:35,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:43:35,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:35,384 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 [2023-11-23 21:43:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:43:35,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:43:35,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:35,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497869962] [2023-11-23 21:43:35,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:43:35,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621792756] [2023-11-23 21:43:35,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621792756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:35,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:35,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:43:35,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705834108] [2023-11-23 21:43:35,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:35,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:43:35,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:35,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:43:35,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:43:35,651 INFO L87 Difference]: Start difference. First operand 603 states and 907 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:43:35,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:35,898 INFO L93 Difference]: Finished difference Result 847 states and 1269 transitions. [2023-11-23 21:43:35,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:43:35,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-23 21:43:35,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:35,906 INFO L225 Difference]: With dead ends: 847 [2023-11-23 21:43:35,907 INFO L226 Difference]: Without dead ends: 846 [2023-11-23 21:43:35,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:43:35,908 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 802 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:35,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1445 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:43:35,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2023-11-23 21:43:35,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 665. [2023-11-23 21:43:35,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 638 states have (on average 1.5) internal successors, (957), 655 states have internal predecessors, (957), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:43:35,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 989 transitions. [2023-11-23 21:43:35,945 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 989 transitions. Word has length 93 [2023-11-23 21:43:35,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:35,947 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 989 transitions. [2023-11-23 21:43:35,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:43:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 989 transitions. [2023-11-23 21:43:35,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-23 21:43:35,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:35,954 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:43:35,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:43:36,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:36,168 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:36,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:36,169 INFO L85 PathProgramCache]: Analyzing trace with hash -397959680, now seen corresponding path program 1 times [2023-11-23 21:43:36,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:36,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876097986] [2023-11-23 21:43:36,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:36,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:36,228 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:43:36,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635415193] [2023-11-23 21:43:36,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:36,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:36,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:36,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:36,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:43:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:36,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:43:36,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:36,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-23 21:43:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:43:36,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:43:36,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:36,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876097986] [2023-11-23 21:43:36,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:43:36,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635415193] [2023-11-23 21:43:36,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635415193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:36,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:36,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:43:36,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201822407] [2023-11-23 21:43:36,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:36,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:43:36,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:36,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:43:36,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:43:36,898 INFO L87 Difference]: Start difference. First operand 665 states and 989 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:43:38,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:43:40,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:43:41,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:41,077 INFO L93 Difference]: Finished difference Result 844 states and 1266 transitions. [2023-11-23 21:43:41,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:43:41,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2023-11-23 21:43:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:41,084 INFO L225 Difference]: With dead ends: 844 [2023-11-23 21:43:41,085 INFO L226 Difference]: Without dead ends: 843 [2023-11-23 21:43:41,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:43:41,087 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 406 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:41,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 1863 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 157 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-11-23 21:43:41,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-11-23 21:43:41,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 664. [2023-11-23 21:43:41,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 638 states have (on average 1.4984326018808778) internal successors, (956), 654 states have internal predecessors, (956), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:43:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 988 transitions. [2023-11-23 21:43:41,124 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 988 transitions. Word has length 94 [2023-11-23 21:43:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:41,125 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 988 transitions. [2023-11-23 21:43:41,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:43:41,126 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 988 transitions. [2023-11-23 21:43:41,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-23 21:43:41,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:41,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:43:41,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:43:41,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:41,347 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:41,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:41,347 INFO L85 PathProgramCache]: Analyzing trace with hash -830068102, now seen corresponding path program 1 times [2023-11-23 21:43:41,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:41,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016749413] [2023-11-23 21:43:41,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:41,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:41,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:43:41,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507242945] [2023-11-23 21:43:41,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:41,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:41,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:41,410 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:41,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 21:43:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:41,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 21:43:41,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:41,863 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 [2023-11-23 21:43:41,878 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 [2023-11-23 21:43:41,899 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 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-23 21:43:42,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:43:42,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 23 [2023-11-23 21:43:42,388 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:43:42,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:43:42,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:42,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016749413] [2023-11-23 21:43:42,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:43:42,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507242945] [2023-11-23 21:43:42,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507242945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:42,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:42,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 21:43:42,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790561321] [2023-11-23 21:43:42,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:42,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 21:43:42,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:42,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 21:43:42,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:43:42,392 INFO L87 Difference]: Start difference. First operand 664 states and 988 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 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) [2023-11-23 21:43:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:44,732 INFO L93 Difference]: Finished difference Result 1462 states and 2182 transitions. [2023-11-23 21:43:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 21:43:44,733 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 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 99 [2023-11-23 21:43:44,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:44,739 INFO L225 Difference]: With dead ends: 1462 [2023-11-23 21:43:44,739 INFO L226 Difference]: Without dead ends: 881 [2023-11-23 21:43:44,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-23 21:43:44,741 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 740 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 3384 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:44,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 3384 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-23 21:43:44,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2023-11-23 21:43:44,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 696. [2023-11-23 21:43:44,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 670 states have (on average 1.482089552238806) internal successors, (993), 686 states have internal predecessors, (993), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:43:44,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1025 transitions. [2023-11-23 21:43:44,774 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1025 transitions. Word has length 99 [2023-11-23 21:43:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:44,774 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 1025 transitions. [2023-11-23 21:43:44,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 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) [2023-11-23 21:43:44,775 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1025 transitions. [2023-11-23 21:43:44,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-23 21:43:44,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:44,776 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:43:44,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:43:44,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:44,992 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:44,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:44,992 INFO L85 PathProgramCache]: Analyzing trace with hash 586505982, now seen corresponding path program 1 times [2023-11-23 21:43:44,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:44,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496613936] [2023-11-23 21:43:44,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:44,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:45,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:43:45,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1964477337] [2023-11-23 21:43:45,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:45,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:45,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:45,069 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:45,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 21:43:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:45,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:43:45,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:43:45,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:43:45,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:43:45,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496613936] [2023-11-23 21:43:45,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:43:45,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964477337] [2023-11-23 21:43:45,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964477337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:43:45,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:43:45,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:43:45,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926565939] [2023-11-23 21:43:45,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:43:45,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:43:45,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:43:45,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:43:45,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:43:45,515 INFO L87 Difference]: Start difference. First operand 696 states and 1025 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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) [2023-11-23 21:43:45,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:43:45,649 INFO L93 Difference]: Finished difference Result 1477 states and 2210 transitions. [2023-11-23 21:43:45,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:43:45,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 99 [2023-11-23 21:43:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:43:45,656 INFO L225 Difference]: With dead ends: 1477 [2023-11-23 21:43:45,656 INFO L226 Difference]: Without dead ends: 884 [2023-11-23 21:43:45,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:43:45,658 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 142 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:43:45,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1459 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:43:45,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2023-11-23 21:43:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 719. [2023-11-23 21:43:45,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 693 states have (on average 1.4646464646464648) internal successors, (1015), 709 states have internal predecessors, (1015), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:43:45,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1047 transitions. [2023-11-23 21:43:45,694 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1047 transitions. Word has length 99 [2023-11-23 21:43:45,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:43:45,694 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 1047 transitions. [2023-11-23 21:43:45,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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) [2023-11-23 21:43:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1047 transitions. [2023-11-23 21:43:45,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-23 21:43:45,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:43:45,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:43:45,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:43:45,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:43:45,910 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:43:45,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:43:45,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1885248552, now seen corresponding path program 1 times [2023-11-23 21:43:45,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:43:45,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853309821] [2023-11-23 21:43:45,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:45,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:43:45,970 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:43:45,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127653871] [2023-11-23 21:43:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:43:45,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:43:45,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:43:45,972 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:43:45,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 21:43:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:43:46,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-23 21:43:46,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:43:46,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:43:46,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 22 [2023-11-23 21:44:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:44:15,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:15,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:15,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853309821] [2023-11-23 21:44:15,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:15,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127653871] [2023-11-23 21:44:15,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127653871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:15,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:15,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 21:44:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963959729] [2023-11-23 21:44:15,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:15,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 21:44:15,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:15,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 21:44:15,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:44:15,448 INFO L87 Difference]: Start difference. First operand 719 states and 1047 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 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) [2023-11-23 21:44:18,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:18,059 INFO L93 Difference]: Finished difference Result 1362 states and 1997 transitions. [2023-11-23 21:44:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 21:44:18,060 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 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 100 [2023-11-23 21:44:18,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:18,066 INFO L225 Difference]: With dead ends: 1362 [2023-11-23 21:44:18,066 INFO L226 Difference]: Without dead ends: 756 [2023-11-23 21:44:18,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:44:18,069 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 21 mSDsluCounter, 3566 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4058 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:18,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4058 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 21:44:18,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2023-11-23 21:44:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 746. [2023-11-23 21:44:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 720 states have (on average 1.4513888888888888) internal successors, (1045), 736 states have internal predecessors, (1045), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:44:18,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1077 transitions. [2023-11-23 21:44:18,106 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1077 transitions. Word has length 100 [2023-11-23 21:44:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:18,106 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 1077 transitions. [2023-11-23 21:44:18,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 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) [2023-11-23 21:44:18,107 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1077 transitions. [2023-11-23 21:44:18,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-23 21:44:18,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:18,109 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:18,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:18,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 21:44:18,320 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:44:18,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:18,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1721004371, now seen corresponding path program 1 times [2023-11-23 21:44:18,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:18,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141380880] [2023-11-23 21:44:18,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:18,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:18,393 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:18,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174367451] [2023-11-23 21:44:18,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:18,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:18,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:18,395 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:18,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 21:44:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:18,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:44:18,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:18,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:44:18,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:18,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:18,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141380880] [2023-11-23 21:44:18,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:18,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174367451] [2023-11-23 21:44:18,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174367451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:18,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:18,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:44:18,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680482763] [2023-11-23 21:44:18,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:18,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:44:18,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:18,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:44:18,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:18,986 INFO L87 Difference]: Start difference. First operand 746 states and 1077 transitions. Second operand has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 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) [2023-11-23 21:44:19,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:19,052 INFO L93 Difference]: Finished difference Result 1330 states and 1935 transitions. [2023-11-23 21:44:19,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:44:19,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 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 101 [2023-11-23 21:44:19,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:19,060 INFO L225 Difference]: With dead ends: 1330 [2023-11-23 21:44:19,060 INFO L226 Difference]: Without dead ends: 750 [2023-11-23 21:44:19,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:44:19,065 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 1 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:19,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1508 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:44:19,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-11-23 21:44:19,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-11-23 21:44:19,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 722 states have (on average 1.4529085872576177) internal successors, (1049), 740 states have internal predecessors, (1049), 16 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-23 21:44:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1083 transitions. [2023-11-23 21:44:19,126 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1083 transitions. Word has length 101 [2023-11-23 21:44:19,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:19,126 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1083 transitions. [2023-11-23 21:44:19,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 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) [2023-11-23 21:44:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1083 transitions. [2023-11-23 21:44:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 21:44:19,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:19,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:19,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:19,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 21:44:19,343 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-23 21:44:19,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:19,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1333128527, now seen corresponding path program 1 times [2023-11-23 21:44:19,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:19,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831455345] [2023-11-23 21:44:19,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:19,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:19,418 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:19,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135511761] [2023-11-23 21:44:19,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:19,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:19,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:19,421 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:19,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de609d6-2dd3-485c-a2ae-5af4c7444420/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 21:44:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:20,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:44:20,103 INFO L285 TraceCheckSpWp]: Computing forward predicates...