./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya --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 3b6a7e09bdf002daf4e1e371c35be311dd644a61b41d9b32022b9ee835751b90 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:56:09,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:56:09,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:56:09,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:56:09,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:56:09,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:56:09,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:56:09,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:56:09,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:56:09,174 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:56:09,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:56:09,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:56:09,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:56:09,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:56:09,177 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:56:09,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:56:09,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:56:09,179 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:56:09,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:56:09,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:56:09,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:56:09,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:56:09,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:56:09,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:56:09,183 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:56:09,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:56:09,184 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:56:09,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:56:09,185 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:56:09,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:56:09,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:56:09,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:56:09,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:56:09,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:56:09,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:56:09,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:56:09,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:56:09,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:56:09,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:56:09,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:56:09,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:56:09,189 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:56:09,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:56:09,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:56:09,189 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_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b6a7e09bdf002daf4e1e371c35be311dd644a61b41d9b32022b9ee835751b90 [2023-11-29 01:56:09,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:56:09,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:56:09,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:56:09,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:56:09,425 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:56:09,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i [2023-11-29 01:56:12,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:56:12,414 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:56:12,415 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-1.i [2023-11-29 01:56:12,435 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/data/0a2fc84ee/8bc2977e8a8f4063a56cb4f684c71b7c/FLAGc4596a5dc [2023-11-29 01:56:12,452 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/data/0a2fc84ee/8bc2977e8a8f4063a56cb4f684c71b7c [2023-11-29 01:56:12,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:56:12,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:56:12,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:56:12,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:56:12,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:56:12,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:56:12" (1/1) ... [2023-11-29 01:56:12,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@324bc27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:12, skipping insertion in model container [2023-11-29 01:56:12,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:56:12" (1/1) ... [2023-11-29 01:56:12,540 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:56:13,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:56:13,057 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:56:13,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:56:13,197 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:56:13,203 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:56:13,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13 WrapperNode [2023-11-29 01:56:13,204 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:56:13,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:56:13,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:56:13,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:56:13,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,331 INFO L138 Inliner]: procedures = 177, calls = 299, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1335 [2023-11-29 01:56:13,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:56:13,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:56:13,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:56:13,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:56:13,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,386 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,455 INFO L175 MemorySlicer]: Split 261 memory accesses to 4 slices as follows [2, 5, 220, 34]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 1, 50, 4]. [2023-11-29 01:56:13,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:56:13,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:56:13,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:56:13,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:56:13,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (1/1) ... [2023-11-29 01:56:13,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:56:13,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:13,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:56:13,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:56:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 01:56:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 01:56:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:56:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:56:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:56:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:56:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:56:13,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:56:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:56:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:56:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:56:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:56:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 01:56:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 01:56:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 01:56:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 01:56:13,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 01:56:13,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 01:56:13,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 01:56:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 01:56:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2023-11-29 01:56:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2023-11-29 01:56:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:56:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:56:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:56:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:56:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:56:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 01:56:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:56:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 01:56:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 01:56:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 01:56:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 01:56:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 01:56:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:56:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:56:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:56:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:56:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:56:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:56:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:56:13,831 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:56:13,833 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:56:15,242 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:56:15,284 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:56:15,284 INFO L309 CfgBuilder]: Removed 62 assume(true) statements. [2023-11-29 01:56:15,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:56:15 BoogieIcfgContainer [2023-11-29 01:56:15,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:56:15,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:56:15,288 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:56:15,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:56:15,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:56:12" (1/3) ... [2023-11-29 01:56:15,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bcad24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:56:15, skipping insertion in model container [2023-11-29 01:56:15,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:56:13" (2/3) ... [2023-11-29 01:56:15,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bcad24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:56:15, skipping insertion in model container [2023-11-29 01:56:15,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:56:15" (3/3) ... [2023-11-29 01:56:15,293 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test8-1.i [2023-11-29 01:56:15,306 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:56:15,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 01:56:15,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:56:15,363 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;@456494c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:56:15,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 01:56:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 405 states, 370 states have (on average 1.7135135135135136) internal successors, (634), 395 states have internal predecessors, (634), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 01:56:15,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 01:56:15,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:15,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 01:56:15,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:15,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:15,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1189360124, now seen corresponding path program 1 times [2023-11-29 01:56:15,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:15,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735821147] [2023-11-29 01:56:15,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:15,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:15,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:15,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735821147] [2023-11-29 01:56:15,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:56:15,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46691871] [2023-11-29 01:56:15,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:15,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:15,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:15,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:15,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:56:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:15,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:56:15,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:15,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:15,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46691871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:15,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:15,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:56:15,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794483180] [2023-11-29 01:56:15,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:15,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:56:15,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:15,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:56:15,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:56:15,769 INFO L87 Difference]: Start difference. First operand has 405 states, 370 states have (on average 1.7135135135135136) internal successors, (634), 395 states have internal predecessors, (634), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) 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) [2023-11-29 01:56:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:15,855 INFO L93 Difference]: Finished difference Result 807 states and 1371 transitions. [2023-11-29 01:56:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:56:15,858 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 [2023-11-29 01:56:15,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:15,873 INFO L225 Difference]: With dead ends: 807 [2023-11-29 01:56:15,874 INFO L226 Difference]: Without dead ends: 398 [2023-11-29 01:56:15,880 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 [2023-11-29 01:56:15,884 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:15,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:56:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-29 01:56:15,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2023-11-29 01:56:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 367 states have (on average 1.5286103542234333) internal successors, (561), 389 states have internal predecessors, (561), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:56:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 601 transitions. [2023-11-29 01:56:15,953 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 601 transitions. Word has length 6 [2023-11-29 01:56:15,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:15,954 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 601 transitions. [2023-11-29 01:56:15,954 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) [2023-11-29 01:56:15,954 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 601 transitions. [2023-11-29 01:56:15,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 01:56:15,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:15,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 01:56:15,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:56:16,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 01:56:16,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:16,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1189362046, now seen corresponding path program 1 times [2023-11-29 01:56:16,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:16,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134852061] [2023-11-29 01:56:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:16,184 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:16,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660090560] [2023-11-29 01:56:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:16,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:16,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:16,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:16,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:56:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:16,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:56:16,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:16,429 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 [2023-11-29 01:56:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:16,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:16,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:16,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134852061] [2023-11-29 01:56:16,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:16,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660090560] [2023-11-29 01:56:16,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660090560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:16,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:16,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:56:16,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103837262] [2023-11-29 01:56:16,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:16,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:16,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:16,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:16,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:16,468 INFO L87 Difference]: Start difference. First operand 398 states and 601 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) [2023-11-29 01:56:16,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:16,666 INFO L93 Difference]: Finished difference Result 751 states and 1129 transitions. [2023-11-29 01:56:16,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:56:16,666 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 [2023-11-29 01:56:16,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:16,674 INFO L225 Difference]: With dead ends: 751 [2023-11-29 01:56:16,674 INFO L226 Difference]: Without dead ends: 749 [2023-11-29 01:56:16,674 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 [2023-11-29 01:56:16,676 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 511 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:16,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1720 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:16,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-11-29 01:56:16,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 404. [2023-11-29 01:56:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 373 states have (on average 1.522788203753351) internal successors, (568), 395 states have internal predecessors, (568), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:56:16,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 608 transitions. [2023-11-29 01:56:16,741 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 608 transitions. Word has length 6 [2023-11-29 01:56:16,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:16,741 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 608 transitions. [2023-11-29 01:56:16,741 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) [2023-11-29 01:56:16,741 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 608 transitions. [2023-11-29 01:56:16,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 01:56:16,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:16,747 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] [2023-11-29 01:56:16,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:56:16,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:16,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:16,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:16,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2093098756, now seen corresponding path program 1 times [2023-11-29 01:56:16,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:16,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77067507] [2023-11-29 01:56:16,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:16,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:17,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:17,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:17,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77067507] [2023-11-29 01:56:17,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77067507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:17,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:17,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:56:17,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647007417] [2023-11-29 01:56:17,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:17,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:17,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:17,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:17,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:17,296 INFO L87 Difference]: Start difference. First operand 404 states and 608 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:17,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:17,449 INFO L93 Difference]: Finished difference Result 959 states and 1451 transitions. [2023-11-29 01:56:17,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:56:17,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-11-29 01:56:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:17,455 INFO L225 Difference]: With dead ends: 959 [2023-11-29 01:56:17,455 INFO L226 Difference]: Without dead ends: 748 [2023-11-29 01:56:17,456 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 [2023-11-29 01:56:17,458 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 512 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:17,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1805 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:17,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-29 01:56:17,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 404. [2023-11-29 01:56:17,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 373 states have (on average 1.520107238605898) internal successors, (567), 395 states have internal predecessors, (567), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:56:17,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 607 transitions. [2023-11-29 01:56:17,479 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 607 transitions. Word has length 71 [2023-11-29 01:56:17,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:17,479 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 607 transitions. [2023-11-29 01:56:17,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:17,480 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 607 transitions. [2023-11-29 01:56:17,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 01:56:17,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:17,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:17,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:56:17,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:17,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:17,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2129685085, now seen corresponding path program 1 times [2023-11-29 01:56:17,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:17,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241703742] [2023-11-29 01:56:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:17,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:17,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:17,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1246716361] [2023-11-29 01:56:17,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:17,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:17,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:17,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:17,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:56:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:17,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:56:17,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:17,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:17,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:17,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:17,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241703742] [2023-11-29 01:56:17,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:17,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246716361] [2023-11-29 01:56:17,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246716361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:17,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:17,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:56:17,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666294963] [2023-11-29 01:56:17,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:17,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:56:17,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:17,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:56:17,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:56:17,858 INFO L87 Difference]: Start difference. First operand 404 states and 607 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:17,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:17,972 INFO L93 Difference]: Finished difference Result 822 states and 1238 transitions. [2023-11-29 01:56:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:56:17,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-29 01:56:17,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:17,978 INFO L225 Difference]: With dead ends: 822 [2023-11-29 01:56:17,978 INFO L226 Difference]: Without dead ends: 425 [2023-11-29 01:56:17,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:56:17,980 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 9 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:17,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1140 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:17,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-29 01:56:17,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 424. [2023-11-29 01:56:17,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 393 states have (on average 1.4936386768447838) internal successors, (587), 415 states have internal predecessors, (587), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:56:17,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 627 transitions. [2023-11-29 01:56:17,998 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 627 transitions. Word has length 82 [2023-11-29 01:56:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:17,998 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 627 transitions. [2023-11-29 01:56:17,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:17,999 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 627 transitions. [2023-11-29 01:56:18,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 01:56:18,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:18,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:18,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 01:56:18,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:18,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:18,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:18,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1323312481, now seen corresponding path program 1 times [2023-11-29 01:56:18,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:18,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778496438] [2023-11-29 01:56:18,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:18,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:18,252 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:18,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261468429] [2023-11-29 01:56:18,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:18,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:18,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:18,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:18,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:56:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:18,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:56:18,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:18,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:18,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:18,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:18,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778496438] [2023-11-29 01:56:18,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:18,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261468429] [2023-11-29 01:56:18,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261468429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:18,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:18,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:56:18,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185378200] [2023-11-29 01:56:18,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:18,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:18,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:18,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:18,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:18,548 INFO L87 Difference]: Start difference. First operand 424 states and 627 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:18,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:18,635 INFO L93 Difference]: Finished difference Result 828 states and 1234 transitions. [2023-11-29 01:56:18,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:56:18,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-29 01:56:18,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:18,639 INFO L225 Difference]: With dead ends: 828 [2023-11-29 01:56:18,639 INFO L226 Difference]: Without dead ends: 411 [2023-11-29 01:56:18,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:56:18,641 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 165 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:18,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1558 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:18,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-11-29 01:56:18,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 410. [2023-11-29 01:56:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 379 states have (on average 1.4934036939313984) internal successors, (566), 401 states have internal predecessors, (566), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:56:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 606 transitions. [2023-11-29 01:56:18,654 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 606 transitions. Word has length 82 [2023-11-29 01:56:18,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:18,655 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 606 transitions. [2023-11-29 01:56:18,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:18,655 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 606 transitions. [2023-11-29 01:56:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 01:56:18,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:18,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:18,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:56:18,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:18,858 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:18,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash 419208083, now seen corresponding path program 1 times [2023-11-29 01:56:18,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:18,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968351530] [2023-11-29 01:56:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:18,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:18,893 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:18,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1247406163] [2023-11-29 01:56:18,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:18,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:18,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:18,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:18,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:56:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:19,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:56:19,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:19,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:19,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:19,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968351530] [2023-11-29 01:56:19,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:19,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247406163] [2023-11-29 01:56:19,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247406163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:19,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:19,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:56:19,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513184040] [2023-11-29 01:56:19,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:19,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:19,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:19,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:19,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:19,321 INFO L87 Difference]: Start difference. First operand 410 states and 606 transitions. Second operand has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:19,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:19,454 INFO L93 Difference]: Finished difference Result 410 states and 606 transitions. [2023-11-29 01:56:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:56:19,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-29 01:56:19,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:19,459 INFO L225 Difference]: With dead ends: 410 [2023-11-29 01:56:19,459 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 01:56:19,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:56:19,461 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 530 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:19,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 1096 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 01:56:19,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2023-11-29 01:56:19,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 379 states have (on average 1.4907651715039578) internal successors, (565), 400 states have internal predecessors, (565), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:56:19,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 605 transitions. [2023-11-29 01:56:19,485 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 605 transitions. Word has length 82 [2023-11-29 01:56:19,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:19,486 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 605 transitions. [2023-11-29 01:56:19,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:19,486 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 605 transitions. [2023-11-29 01:56:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 01:56:19,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:19,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:19,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:56:19,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 01:56:19,699 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:19,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash 110548758, now seen corresponding path program 1 times [2023-11-29 01:56:19,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:19,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372958163] [2023-11-29 01:56:19,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:19,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:19,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:19,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873443880] [2023-11-29 01:56:19,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:19,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:19,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:19,748 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:19,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:56:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:20,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:56:20,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:20,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:20,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:20,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372958163] [2023-11-29 01:56:20,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:20,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873443880] [2023-11-29 01:56:20,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873443880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:20,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:20,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:56:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122183544] [2023-11-29 01:56:20,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:20,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:20,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:20,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:20,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:20,200 INFO L87 Difference]: Start difference. First operand 409 states and 605 transitions. Second operand has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:20,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:20,319 INFO L93 Difference]: Finished difference Result 623 states and 930 transitions. [2023-11-29 01:56:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:56:20,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-11-29 01:56:20,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:20,330 INFO L225 Difference]: With dead ends: 623 [2023-11-29 01:56:20,330 INFO L226 Difference]: Without dead ends: 622 [2023-11-29 01:56:20,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:56:20,331 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 213 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:20,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1732 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:20,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2023-11-29 01:56:20,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 591. [2023-11-29 01:56:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 556 states have (on average 1.474820143884892) internal successors, (820), 577 states have internal predecessors, (820), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 01:56:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 868 transitions. [2023-11-29 01:56:20,367 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 868 transitions. Word has length 83 [2023-11-29 01:56:20,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:20,367 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 868 transitions. [2023-11-29 01:56:20,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:20,368 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 868 transitions. [2023-11-29 01:56:20,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 01:56:20,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:20,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:20,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:56:20,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 01:56:20,573 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:20,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:20,573 INFO L85 PathProgramCache]: Analyzing trace with hash -517998921, now seen corresponding path program 1 times [2023-11-29 01:56:20,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:20,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113437013] [2023-11-29 01:56:20,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:20,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:20,620 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:20,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972145026] [2023-11-29 01:56:20,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:20,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:20,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:20,622 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:20,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:56:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:20,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:56:20,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:21,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:21,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:21,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113437013] [2023-11-29 01:56:21,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:21,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972145026] [2023-11-29 01:56:21,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972145026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:21,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:21,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:56:21,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401871874] [2023-11-29 01:56:21,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:21,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:56:21,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:21,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:56:21,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:56:21,264 INFO L87 Difference]: Start difference. First operand 591 states and 868 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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) [2023-11-29 01:56:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:21,387 INFO L93 Difference]: Finished difference Result 1197 states and 1767 transitions. [2023-11-29 01:56:21,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:56:21,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 [2023-11-29 01:56:21,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:21,393 INFO L225 Difference]: With dead ends: 1197 [2023-11-29 01:56:21,393 INFO L226 Difference]: Without dead ends: 737 [2023-11-29 01:56:21,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:56:21,395 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 343 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:21,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1315 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:21,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-29 01:56:21,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 734. [2023-11-29 01:56:21,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 698 states have (on average 1.488538681948424) internal successors, (1039), 719 states have internal predecessors, (1039), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (25), 10 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 01:56:21,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1089 transitions. [2023-11-29 01:56:21,430 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1089 transitions. Word has length 93 [2023-11-29 01:56:21,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:21,431 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1089 transitions. [2023-11-29 01:56:21,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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) [2023-11-29 01:56:21,431 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1089 transitions. [2023-11-29 01:56:21,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:56:21,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:21,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:21,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:56:21,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:21,634 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:21,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:21,634 INFO L85 PathProgramCache]: Analyzing trace with hash -939546694, now seen corresponding path program 1 times [2023-11-29 01:56:21,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:21,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170450392] [2023-11-29 01:56:21,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:21,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:21,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:21,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993754372] [2023-11-29 01:56:21,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:21,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:21,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:21,676 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:21,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:56:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:21,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:56:21,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:21,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:56:22,238 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 [2023-11-29 01:56:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:56:22,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:22,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:22,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170450392] [2023-11-29 01:56:22,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:22,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993754372] [2023-11-29 01:56:22,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993754372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:22,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:22,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:56:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102192177] [2023-11-29 01:56:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:22,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:56:22,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:22,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:56:22,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:56:22,250 INFO L87 Difference]: Start difference. First operand 734 states and 1089 transitions. Second operand has 5 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:56:26,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:56:30,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:56:30,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:30,502 INFO L93 Difference]: Finished difference Result 977 states and 1459 transitions. [2023-11-29 01:56:30,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:56:30,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 106 [2023-11-29 01:56:30,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:30,534 INFO L225 Difference]: With dead ends: 977 [2023-11-29 01:56:30,534 INFO L226 Difference]: Without dead ends: 976 [2023-11-29 01:56:30,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:56:30,535 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 485 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:30,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1706 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-11-29 01:56:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-11-29 01:56:30,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 965. [2023-11-29 01:56:30,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 911 states have (on average 1.495060373216246) internal successors, (1362), 948 states have internal predecessors, (1362), 42 states have call successors, (42), 7 states have call predecessors, (42), 6 states have return successors, (42), 11 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 01:56:30,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1446 transitions. [2023-11-29 01:56:30,582 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1446 transitions. Word has length 106 [2023-11-29 01:56:30,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:30,583 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1446 transitions. [2023-11-29 01:56:30,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:56:30,584 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1446 transitions. [2023-11-29 01:56:30,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 01:56:30,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:30,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:30,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 01:56:30,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:30,790 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:30,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:30,790 INFO L85 PathProgramCache]: Analyzing trace with hash 938824457, now seen corresponding path program 1 times [2023-11-29 01:56:30,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:30,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638199241] [2023-11-29 01:56:30,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:30,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:30,834 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:30,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406873563] [2023-11-29 01:56:30,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:30,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:30,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:30,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:30,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:56:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:31,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:56:31,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:31,490 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 [2023-11-29 01:56:31,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:56:31,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:31,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:31,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638199241] [2023-11-29 01:56:31,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:31,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406873563] [2023-11-29 01:56:31,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406873563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:31,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:31,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:56:31,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494086939] [2023-11-29 01:56:31,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:31,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:56:31,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:31,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:56:31,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:56:31,505 INFO L87 Difference]: Start difference. First operand 965 states and 1446 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:56:31,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:31,828 INFO L93 Difference]: Finished difference Result 976 states and 1458 transitions. [2023-11-29 01:56:31,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:56:31,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 107 [2023-11-29 01:56:31,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:31,836 INFO L225 Difference]: With dead ends: 976 [2023-11-29 01:56:31,836 INFO L226 Difference]: Without dead ends: 975 [2023-11-29 01:56:31,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:56:31,838 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 482 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:31,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 2228 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:56:31,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2023-11-29 01:56:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 964. [2023-11-29 01:56:31,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 911 states have (on average 1.4939626783754116) internal successors, (1361), 947 states have internal predecessors, (1361), 42 states have call successors, (42), 7 states have call predecessors, (42), 6 states have return successors, (42), 11 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 01:56:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1445 transitions. [2023-11-29 01:56:31,888 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1445 transitions. Word has length 107 [2023-11-29 01:56:31,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:31,888 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 1445 transitions. [2023-11-29 01:56:31,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:56:31,889 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1445 transitions. [2023-11-29 01:56:31,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 01:56:31,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:31,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:31,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:56:32,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:56:32,098 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:32,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:32,098 INFO L85 PathProgramCache]: Analyzing trace with hash 882621675, now seen corresponding path program 1 times [2023-11-29 01:56:32,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:32,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975711560] [2023-11-29 01:56:32,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:32,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:32,148 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:32,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254392042] [2023-11-29 01:56:32,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:32,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:32,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:32,150 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:32,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:56:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:32,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:56:32,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:32,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:32,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:32,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:32,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975711560] [2023-11-29 01:56:32,994 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:32,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254392042] [2023-11-29 01:56:32,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254392042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:32,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:32,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:56:32,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204023278] [2023-11-29 01:56:32,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:32,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:32,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:32,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:32,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:32,997 INFO L87 Difference]: Start difference. First operand 964 states and 1445 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:56:33,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:33,072 INFO L93 Difference]: Finished difference Result 1807 states and 2715 transitions. [2023-11-29 01:56:33,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:56:33,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 112 [2023-11-29 01:56:33,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:33,079 INFO L225 Difference]: With dead ends: 1807 [2023-11-29 01:56:33,079 INFO L226 Difference]: Without dead ends: 968 [2023-11-29 01:56:33,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:56:33,082 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 1 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:33,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1751 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:56:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2023-11-29 01:56:33,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2023-11-29 01:56:33,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 913 states have (on average 1.4950711938663745) internal successors, (1365), 951 states have internal predecessors, (1365), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:33,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1451 transitions. [2023-11-29 01:56:33,128 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1451 transitions. Word has length 112 [2023-11-29 01:56:33,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:33,128 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 1451 transitions. [2023-11-29 01:56:33,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:56:33,128 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1451 transitions. [2023-11-29 01:56:33,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 01:56:33,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:33,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:33,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 01:56:33,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:33,331 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:33,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:33,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1315556023, now seen corresponding path program 1 times [2023-11-29 01:56:33,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:33,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168256239] [2023-11-29 01:56:33,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:33,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:33,390 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:33,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654529154] [2023-11-29 01:56:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:33,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:33,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:33,392 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:33,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:56:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:33,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 01:56:33,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:33,901 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 [2023-11-29 01:56:33,927 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 [2023-11-29 01:56:33,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 01:56:34,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:56:34,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 01:56:34,530 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:56:34,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:34,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:34,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168256239] [2023-11-29 01:56:34,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:34,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654529154] [2023-11-29 01:56:34,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654529154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:34,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:34,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:56:34,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882859941] [2023-11-29 01:56:34,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:34,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:56:34,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:34,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:56:34,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:56:34,533 INFO L87 Difference]: Start difference. First operand 968 states and 1451 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:37,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:37,393 INFO L93 Difference]: Finished difference Result 1907 states and 2848 transitions. [2023-11-29 01:56:37,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:56:37,394 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 114 [2023-11-29 01:56:37,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:37,400 INFO L225 Difference]: With dead ends: 1907 [2023-11-29 01:56:37,400 INFO L226 Difference]: Without dead ends: 1022 [2023-11-29 01:56:37,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:56:37,402 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 1040 mSDsluCounter, 4033 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 4566 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:37,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 4566 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 01:56:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-11-29 01:56:37,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1000. [2023-11-29 01:56:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 945 states have (on average 1.4835978835978836) internal successors, (1402), 983 states have internal predecessors, (1402), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1488 transitions. [2023-11-29 01:56:37,437 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1488 transitions. Word has length 114 [2023-11-29 01:56:37,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:37,437 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1488 transitions. [2023-11-29 01:56:37,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:37,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1488 transitions. [2023-11-29 01:56:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 01:56:37,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:37,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:37,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:56:37,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:37,642 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:37,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:37,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1984717575, now seen corresponding path program 1 times [2023-11-29 01:56:37,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:37,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463754415] [2023-11-29 01:56:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:37,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:37,691 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:37,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181209358] [2023-11-29 01:56:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:37,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:37,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:37,692 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:37,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:56:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:38,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:56:38,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:56:38,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:38,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:38,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463754415] [2023-11-29 01:56:38,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:38,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181209358] [2023-11-29 01:56:38,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181209358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:38,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:38,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:56:38,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259933125] [2023-11-29 01:56:38,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:38,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:56:38,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:38,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:56:38,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:56:38,120 INFO L87 Difference]: Start difference. First operand 1000 states and 1488 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:38,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:38,245 INFO L93 Difference]: Finished difference Result 2085 states and 3136 transitions. [2023-11-29 01:56:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:56:38,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 114 [2023-11-29 01:56:38,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:38,252 INFO L225 Difference]: With dead ends: 2085 [2023-11-29 01:56:38,252 INFO L226 Difference]: Without dead ends: 1188 [2023-11-29 01:56:38,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:56:38,255 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 148 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:38,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1702 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:38,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2023-11-29 01:56:38,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1023. [2023-11-29 01:56:38,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 968 states have (on average 1.4710743801652892) internal successors, (1424), 1006 states have internal predecessors, (1424), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1510 transitions. [2023-11-29 01:56:38,301 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1510 transitions. Word has length 114 [2023-11-29 01:56:38,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:38,301 INFO L495 AbstractCegarLoop]: Abstraction has 1023 states and 1510 transitions. [2023-11-29 01:56:38,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:38,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1510 transitions. [2023-11-29 01:56:38,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 01:56:38,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:38,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:38,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:56:38,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:56:38,504 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:38,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:38,504 INFO L85 PathProgramCache]: Analyzing trace with hash -694977673, now seen corresponding path program 1 times [2023-11-29 01:56:38,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:38,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160404210] [2023-11-29 01:56:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:38,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:38,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:38,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820137818] [2023-11-29 01:56:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:38,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:38,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:38,553 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:38,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:56:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:38,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-29 01:56:38,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:38,995 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 [2023-11-29 01:56:39,017 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 [2023-11-29 01:56:39,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 01:56:39,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:56:39,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 01:56:39,624 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:56:39,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:39,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:39,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160404210] [2023-11-29 01:56:39,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:39,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820137818] [2023-11-29 01:56:39,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820137818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:39,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:39,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 01:56:39,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668773588] [2023-11-29 01:56:39,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:39,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:56:39,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:39,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:56:39,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:56:39,628 INFO L87 Difference]: Start difference. First operand 1023 states and 1510 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 12 states have internal predecessors, (104), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:41,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:41,987 INFO L93 Difference]: Finished difference Result 1973 states and 2923 transitions. [2023-11-29 01:56:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:56:41,988 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 12 states have internal predecessors, (104), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 115 [2023-11-29 01:56:41,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:41,994 INFO L225 Difference]: With dead ends: 1973 [2023-11-29 01:56:41,994 INFO L226 Difference]: Without dead ends: 1069 [2023-11-29 01:56:41,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:56:41,997 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 1132 mSDsluCounter, 3810 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:41,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 4339 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 01:56:41,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2023-11-29 01:56:42,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1036. [2023-11-29 01:56:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 981 states have (on average 1.4699286442405708) internal successors, (1442), 1019 states have internal predecessors, (1442), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:42,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1528 transitions. [2023-11-29 01:56:42,042 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1528 transitions. Word has length 115 [2023-11-29 01:56:42,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:42,043 INFO L495 AbstractCegarLoop]: Abstraction has 1036 states and 1528 transitions. [2023-11-29 01:56:42,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 12 states have internal predecessors, (104), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:42,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1528 transitions. [2023-11-29 01:56:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 01:56:42,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:42,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:42,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 01:56:42,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:56:42,246 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:42,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:42,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1456944180, now seen corresponding path program 1 times [2023-11-29 01:56:42,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:42,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417868275] [2023-11-29 01:56:42,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:42,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:42,290 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:42,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [140164956] [2023-11-29 01:56:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:42,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:42,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:42,291 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:42,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:56:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:42,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:56:42,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:56:42,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:42,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:42,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417868275] [2023-11-29 01:56:42,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140164956] [2023-11-29 01:56:42,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140164956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:42,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:42,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:56:42,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638617225] [2023-11-29 01:56:42,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:42,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:56:42,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:42,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:56:42,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:56:42,820 INFO L87 Difference]: Start difference. First operand 1036 states and 1528 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:43,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:43,368 INFO L93 Difference]: Finished difference Result 1976 states and 2933 transitions. [2023-11-29 01:56:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:56:43,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 116 [2023-11-29 01:56:43,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:43,374 INFO L225 Difference]: With dead ends: 1976 [2023-11-29 01:56:43,375 INFO L226 Difference]: Without dead ends: 1060 [2023-11-29 01:56:43,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:56:43,377 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 17 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:43,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2884 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:56:43,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-11-29 01:56:43,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1050. [2023-11-29 01:56:43,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 995 states have (on average 1.4673366834170853) internal successors, (1460), 1033 states have internal predecessors, (1460), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1546 transitions. [2023-11-29 01:56:43,423 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1546 transitions. Word has length 116 [2023-11-29 01:56:43,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:43,423 INFO L495 AbstractCegarLoop]: Abstraction has 1050 states and 1546 transitions. [2023-11-29 01:56:43,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:43,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1546 transitions. [2023-11-29 01:56:43,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 01:56:43,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:43,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:43,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:56:43,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:43,634 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:43,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:43,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1963681358, now seen corresponding path program 1 times [2023-11-29 01:56:43,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:43,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921411080] [2023-11-29 01:56:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:43,679 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:43,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161040130] [2023-11-29 01:56:43,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:43,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:43,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:43,680 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:43,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:56:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:44,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:56:44,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:56:44,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:44,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:44,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921411080] [2023-11-29 01:56:44,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:44,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161040130] [2023-11-29 01:56:44,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161040130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:44,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:44,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:56:44,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739211764] [2023-11-29 01:56:44,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:44,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:56:44,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:44,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:56:44,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:56:44,185 INFO L87 Difference]: Start difference. First operand 1050 states and 1546 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:44,592 INFO L93 Difference]: Finished difference Result 1984 states and 2938 transitions. [2023-11-29 01:56:44,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:56:44,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 116 [2023-11-29 01:56:44,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:44,597 INFO L225 Difference]: With dead ends: 1984 [2023-11-29 01:56:44,598 INFO L226 Difference]: Without dead ends: 1062 [2023-11-29 01:56:44,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:56:44,599 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 10 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:44,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2460 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:56:44,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-11-29 01:56:44,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1058. [2023-11-29 01:56:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1003 states have (on average 1.465603190428714) internal successors, (1470), 1041 states have internal predecessors, (1470), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1556 transitions. [2023-11-29 01:56:44,643 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1556 transitions. Word has length 116 [2023-11-29 01:56:44,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:44,643 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1556 transitions. [2023-11-29 01:56:44,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1556 transitions. [2023-11-29 01:56:44,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 01:56:44,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:44,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:44,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 01:56:44,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:44,846 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:44,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:44,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2091046192, now seen corresponding path program 1 times [2023-11-29 01:56:44,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:44,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077300852] [2023-11-29 01:56:44,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:44,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:44,892 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:44,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411808697] [2023-11-29 01:56:44,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:44,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:44,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:44,894 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:44,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:56:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:45,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:56:45,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:45,897 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:56:45,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:45,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:45,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077300852] [2023-11-29 01:56:45,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:45,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411808697] [2023-11-29 01:56:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411808697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:45,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:45,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:56:45,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275839798] [2023-11-29 01:56:45,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:45,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:56:45,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:45,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:56:45,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:56:45,904 INFO L87 Difference]: Start difference. First operand 1058 states and 1556 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:46,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:46,723 INFO L93 Difference]: Finished difference Result 1994 states and 2950 transitions. [2023-11-29 01:56:46,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:56:46,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 116 [2023-11-29 01:56:46,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:46,730 INFO L225 Difference]: With dead ends: 1994 [2023-11-29 01:56:46,730 INFO L226 Difference]: Without dead ends: 1072 [2023-11-29 01:56:46,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:56:46,732 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 16 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:46,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2878 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:56:46,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-11-29 01:56:46,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1058. [2023-11-29 01:56:46,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1003 states have (on average 1.465603190428714) internal successors, (1470), 1041 states have internal predecessors, (1470), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1556 transitions. [2023-11-29 01:56:46,771 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1556 transitions. Word has length 116 [2023-11-29 01:56:46,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:46,772 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1556 transitions. [2023-11-29 01:56:46,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1556 transitions. [2023-11-29 01:56:46,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 01:56:46,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:46,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:46,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:56:46,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 01:56:46,974 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:46,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1700657126, now seen corresponding path program 1 times [2023-11-29 01:56:46,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:46,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609585049] [2023-11-29 01:56:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:46,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:47,050 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:47,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976268648] [2023-11-29 01:56:47,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:47,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:47,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:47,061 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:47,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:56:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:47,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:56:47,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:47,639 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:56:47,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:47,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:47,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609585049] [2023-11-29 01:56:47,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:47,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976268648] [2023-11-29 01:56:47,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976268648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:47,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:47,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:56:47,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349575720] [2023-11-29 01:56:47,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:47,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:56:47,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:47,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:56:47,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:56:47,642 INFO L87 Difference]: Start difference. First operand 1058 states and 1556 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:48,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:48,145 INFO L93 Difference]: Finished difference Result 2002 states and 2961 transitions. [2023-11-29 01:56:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:56:48,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 117 [2023-11-29 01:56:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:48,151 INFO L225 Difference]: With dead ends: 2002 [2023-11-29 01:56:48,151 INFO L226 Difference]: Without dead ends: 1084 [2023-11-29 01:56:48,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:56:48,154 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 45 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:48,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2957 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:56:48,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2023-11-29 01:56:48,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1070. [2023-11-29 01:56:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1015 states have (on average 1.4660098522167488) internal successors, (1488), 1053 states have internal predecessors, (1488), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:48,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1574 transitions. [2023-11-29 01:56:48,181 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1574 transitions. Word has length 117 [2023-11-29 01:56:48,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:48,182 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1574 transitions. [2023-11-29 01:56:48,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:48,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1574 transitions. [2023-11-29 01:56:48,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 01:56:48,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:48,183 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:48,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 01:56:48,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:56:48,384 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:48,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash -992437835, now seen corresponding path program 1 times [2023-11-29 01:56:48,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:48,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538053474] [2023-11-29 01:56:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:48,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:48,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:48,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315377337] [2023-11-29 01:56:48,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:48,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:48,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:48,432 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:48,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:56:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:49,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:56:49,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:49,232 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:56:49,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:49,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:49,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538053474] [2023-11-29 01:56:49,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:49,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315377337] [2023-11-29 01:56:49,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315377337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:49,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:49,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:56:49,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704559333] [2023-11-29 01:56:49,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:49,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:56:49,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:49,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:56:49,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:49,234 INFO L87 Difference]: Start difference. First operand 1070 states and 1574 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:49,409 INFO L93 Difference]: Finished difference Result 2033 states and 3008 transitions. [2023-11-29 01:56:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:56:49,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 118 [2023-11-29 01:56:49,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:49,414 INFO L225 Difference]: With dead ends: 2033 [2023-11-29 01:56:49,414 INFO L226 Difference]: Without dead ends: 1094 [2023-11-29 01:56:49,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:56:49,416 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 9 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:49,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1680 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:49,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2023-11-29 01:56:49,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1074. [2023-11-29 01:56:49,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 1019 states have (on average 1.464180569185476) internal successors, (1492), 1057 states have internal predecessors, (1492), 42 states have call successors, (42), 7 states have call predecessors, (42), 8 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:49,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1578 transitions. [2023-11-29 01:56:49,444 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1578 transitions. Word has length 118 [2023-11-29 01:56:49,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:49,444 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1578 transitions. [2023-11-29 01:56:49,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1578 transitions. [2023-11-29 01:56:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 01:56:49,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:49,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:49,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 01:56:49,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:49,647 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:49,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:49,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2010666043, now seen corresponding path program 1 times [2023-11-29 01:56:49,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:49,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151269615] [2023-11-29 01:56:49,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:49,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:49,694 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:49,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950247101] [2023-11-29 01:56:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:49,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:49,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:49,696 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:49,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:56:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:50,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:56:50,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:56:50,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:56:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:56:50,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:50,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151269615] [2023-11-29 01:56:50,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:50,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950247101] [2023-11-29 01:56:50,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950247101] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:56:50,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:56:50,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 01:56:50,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421422008] [2023-11-29 01:56:50,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:56:50,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:56:50,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:50,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:56:50,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:56:50,479 INFO L87 Difference]: Start difference. First operand 1074 states and 1578 transitions. Second operand has 8 states, 6 states have (on average 20.666666666666668) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:56:50,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:50,652 INFO L93 Difference]: Finished difference Result 1988 states and 2942 transitions. [2023-11-29 01:56:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:56:50,653 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.666666666666668) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2023-11-29 01:56:50,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:50,659 INFO L225 Difference]: With dead ends: 1988 [2023-11-29 01:56:50,659 INFO L226 Difference]: Without dead ends: 1092 [2023-11-29 01:56:50,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:56:50,661 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 6 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:50,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2332 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:56:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2023-11-29 01:56:50,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1090. [2023-11-29 01:56:50,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1033 states have (on average 1.4695062923523716) internal successors, (1518), 1071 states have internal predecessors, (1518), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:50,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1604 transitions. [2023-11-29 01:56:50,708 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1604 transitions. Word has length 118 [2023-11-29 01:56:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:50,709 INFO L495 AbstractCegarLoop]: Abstraction has 1090 states and 1604 transitions. [2023-11-29 01:56:50,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.666666666666668) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:56:50,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1604 transitions. [2023-11-29 01:56:50,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 01:56:50,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:50,711 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:50,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 01:56:50,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:50,911 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:50,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1687616125, now seen corresponding path program 2 times [2023-11-29 01:56:50,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:50,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377254950] [2023-11-29 01:56:50,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:50,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:50,958 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:50,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571124084] [2023-11-29 01:56:50,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:56:50,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:50,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:50,959 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:50,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:56:51,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:56:51,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:56:51,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:56:51,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:51,335 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 [2023-11-29 01:56:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 01:56:51,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:51,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:51,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377254950] [2023-11-29 01:56:51,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:51,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571124084] [2023-11-29 01:56:51,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571124084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:51,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:51,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:56:51,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634778545] [2023-11-29 01:56:51,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:51,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:56:51,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:51,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:56:51,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:56:51,343 INFO L87 Difference]: Start difference. First operand 1090 states and 1604 transitions. Second operand has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:51,379 INFO L93 Difference]: Finished difference Result 1090 states and 1604 transitions. [2023-11-29 01:56:51,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:56:51,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 122 [2023-11-29 01:56:51,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:51,385 INFO L225 Difference]: With dead ends: 1090 [2023-11-29 01:56:51,385 INFO L226 Difference]: Without dead ends: 1089 [2023-11-29 01:56:51,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:56:51,386 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 2 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:51,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1165 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:56:51,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-11-29 01:56:51,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1089. [2023-11-29 01:56:51,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1033 states have (on average 1.4685382381413359) internal successors, (1517), 1070 states have internal predecessors, (1517), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:51,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1603 transitions. [2023-11-29 01:56:51,417 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1603 transitions. Word has length 122 [2023-11-29 01:56:51,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:51,417 INFO L495 AbstractCegarLoop]: Abstraction has 1089 states and 1603 transitions. [2023-11-29 01:56:51,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 52.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:51,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1603 transitions. [2023-11-29 01:56:51,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 01:56:51,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:51,419 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:51,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 01:56:51,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 01:56:51,620 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:51,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:51,620 INFO L85 PathProgramCache]: Analyzing trace with hash 776492512, now seen corresponding path program 1 times [2023-11-29 01:56:51,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:51,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133923884] [2023-11-29 01:56:51,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:51,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:51,663 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:51,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200451371] [2023-11-29 01:56:51,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:51,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:51,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:51,665 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:51,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:56:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:52,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:56:52,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:52,890 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:56:52,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:56:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 01:56:53,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:53,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133923884] [2023-11-29 01:56:53,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:53,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200451371] [2023-11-29 01:56:53,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200451371] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:56:53,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:56:53,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2023-11-29 01:56:53,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971575724] [2023-11-29 01:56:53,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:56:53,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:56:53,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:53,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:56:53,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:56:53,031 INFO L87 Difference]: Start difference. First operand 1089 states and 1603 transitions. Second operand has 14 states, 12 states have (on average 10.833333333333334) internal successors, (130), 14 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:56:53,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:56:53,508 INFO L93 Difference]: Finished difference Result 1978 states and 2937 transitions. [2023-11-29 01:56:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 01:56:53,509 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.833333333333334) internal successors, (130), 14 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 123 [2023-11-29 01:56:53,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:56:53,515 INFO L225 Difference]: With dead ends: 1978 [2023-11-29 01:56:53,515 INFO L226 Difference]: Without dead ends: 947 [2023-11-29 01:56:53,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:56:53,518 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 109 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:56:53,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 3419 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:56:53,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2023-11-29 01:56:53,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 935. [2023-11-29 01:56:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 879 states have (on average 1.4641638225255973) internal successors, (1287), 916 states have internal predecessors, (1287), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:56:53,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1373 transitions. [2023-11-29 01:56:53,571 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1373 transitions. Word has length 123 [2023-11-29 01:56:53,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:56:53,571 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 1373 transitions. [2023-11-29 01:56:53,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.833333333333334) internal successors, (130), 14 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:56:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1373 transitions. [2023-11-29 01:56:53,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 01:56:53,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:56:53,574 INFO L195 NwaCegarLoop]: trace histogram [12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:53,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 01:56:53,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 01:56:53,776 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:56:53,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:53,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1595144256, now seen corresponding path program 2 times [2023-11-29 01:56:53,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:53,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116144628] [2023-11-29 01:56:53,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:53,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:53,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:56:53,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378305246] [2023-11-29 01:56:53,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:56:53,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:56:53,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:56:53,845 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:56:53,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 01:56:55,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:56:55,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:56:55,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:56:55,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:56:55,521 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-29 01:56:55,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:56:55,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:55,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116144628] [2023-11-29 01:56:55,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:56:55,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378305246] [2023-11-29 01:56:55,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378305246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:55,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:55,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:56:55,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479050543] [2023-11-29 01:56:55,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:55,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:56:55,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:55,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:56:55,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:56:55,523 INFO L87 Difference]: Start difference. First operand 935 states and 1373 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:56:59,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 01:57:01,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:57:02,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:02,187 INFO L93 Difference]: Finished difference Result 1837 states and 2717 transitions. [2023-11-29 01:57:02,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:57:02,187 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 129 [2023-11-29 01:57:02,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:02,193 INFO L225 Difference]: With dead ends: 1837 [2023-11-29 01:57:02,193 INFO L226 Difference]: Without dead ends: 963 [2023-11-29 01:57:02,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:57:02,195 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 23 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:02,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4078 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-29 01:57:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-11-29 01:57:02,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 957. [2023-11-29 01:57:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 901 states have (on average 1.4594894561598224) internal successors, (1315), 938 states have internal predecessors, (1315), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:57:02,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1401 transitions. [2023-11-29 01:57:02,240 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1401 transitions. Word has length 129 [2023-11-29 01:57:02,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:02,241 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1401 transitions. [2023-11-29 01:57:02,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:57:02,241 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1401 transitions. [2023-11-29 01:57:02,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 01:57:02,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:02,243 INFO L195 NwaCegarLoop]: trace histogram [12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:02,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:02,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 01:57:02,447 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:57:02,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:02,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1320904156, now seen corresponding path program 1 times [2023-11-29 01:57:02,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:02,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664414231] [2023-11-29 01:57:02,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:02,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:02,510 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:02,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137451419] [2023-11-29 01:57:02,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:02,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:02,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:02,512 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:02,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 01:57:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:04,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:57:04,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 53 proven. 10 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 01:57:04,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-29 01:57:04,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:04,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664414231] [2023-11-29 01:57:04,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:04,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137451419] [2023-11-29 01:57:04,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137451419] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:57:04,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:57:04,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-11-29 01:57:04,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403446257] [2023-11-29 01:57:04,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:04,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:57:04,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:04,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:57:04,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:57:04,692 INFO L87 Difference]: Start difference. First operand 957 states and 1401 transitions. Second operand has 15 states, 13 states have (on average 10.23076923076923) internal successors, (133), 15 states have internal predecessors, (133), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:57:05,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:05,266 INFO L93 Difference]: Finished difference Result 1825 states and 2691 transitions. [2023-11-29 01:57:05,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:57:05,266 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 10.23076923076923) internal successors, (133), 15 states have internal predecessors, (133), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 129 [2023-11-29 01:57:05,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:05,270 INFO L225 Difference]: With dead ends: 1825 [2023-11-29 01:57:05,270 INFO L226 Difference]: Without dead ends: 977 [2023-11-29 01:57:05,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:57:05,272 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 103 mSDsluCounter, 4429 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:05,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 4933 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:57:05,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-11-29 01:57:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 969. [2023-11-29 01:57:05,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 913 states have (on average 1.4534501642935378) internal successors, (1327), 950 states have internal predecessors, (1327), 42 states have call successors, (42), 9 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:57:05,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1413 transitions. [2023-11-29 01:57:05,320 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1413 transitions. Word has length 129 [2023-11-29 01:57:05,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:05,321 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1413 transitions. [2023-11-29 01:57:05,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 10.23076923076923) internal successors, (133), 15 states have internal predecessors, (133), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:57:05,321 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1413 transitions. [2023-11-29 01:57:05,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 01:57:05,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:05,323 INFO L195 NwaCegarLoop]: trace histogram [18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:05,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:05,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 01:57:05,525 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:57:05,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:05,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1548626116, now seen corresponding path program 2 times [2023-11-29 01:57:05,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:05,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821830530] [2023-11-29 01:57:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:05,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:05,579 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:05,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255703193] [2023-11-29 01:57:05,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:57:05,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:05,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:05,580 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:05,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 01:57:06,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:57:06,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:57:06,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-29 01:57:06,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:06,612 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 7 proven. 181 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 01:57:06,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:07,632 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 106 proven. 36 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-29 01:57:07,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:07,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821830530] [2023-11-29 01:57:07,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:07,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255703193] [2023-11-29 01:57:07,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255703193] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:57:07,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:57:07,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2023-11-29 01:57:07,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572293184] [2023-11-29 01:57:07,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:07,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 01:57:07,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:07,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 01:57:07,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:57:07,635 INFO L87 Difference]: Start difference. First operand 969 states and 1413 transitions. Second operand has 24 states, 22 states have (on average 6.363636363636363) internal successors, (140), 24 states have internal predecessors, (140), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:57:17,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:17,713 INFO L93 Difference]: Finished difference Result 1872 states and 2765 transitions. [2023-11-29 01:57:17,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-29 01:57:17,714 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 6.363636363636363) internal successors, (140), 24 states have internal predecessors, (140), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 135 [2023-11-29 01:57:17,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:17,720 INFO L225 Difference]: With dead ends: 1872 [2023-11-29 01:57:17,720 INFO L226 Difference]: Without dead ends: 1025 [2023-11-29 01:57:17,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=854, Invalid=2806, Unknown=0, NotChecked=0, Total=3660 [2023-11-29 01:57:17,723 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 21 mSDsluCounter, 5622 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6136 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:17,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6136 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:57:17,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2023-11-29 01:57:17,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1009. [2023-11-29 01:57:17,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 953 states have (on average 1.4491080797481637) internal successors, (1381), 988 states have internal predecessors, (1381), 42 states have call successors, (42), 11 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:57:17,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1467 transitions. [2023-11-29 01:57:17,781 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1467 transitions. Word has length 135 [2023-11-29 01:57:17,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:17,782 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1467 transitions. [2023-11-29 01:57:17,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 6.363636363636363) internal successors, (140), 24 states have internal predecessors, (140), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:57:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1467 transitions. [2023-11-29 01:57:17,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 01:57:17,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:17,783 INFO L195 NwaCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:17,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 01:57:17,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 01:57:17,984 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:57:17,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:17,984 INFO L85 PathProgramCache]: Analyzing trace with hash 774881892, now seen corresponding path program 3 times [2023-11-29 01:57:17,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:17,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56455759] [2023-11-29 01:57:17,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:17,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:18,048 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:18,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022092242] [2023-11-29 01:57:18,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:57:18,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:18,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:18,050 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:18,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 01:58:28,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 01:58:28,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:58:28,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-29 01:58:28,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:45,362 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-11-29 01:58:45,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:58:45,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:45,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56455759] [2023-11-29 01:58:45,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:45,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022092242] [2023-11-29 01:58:45,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022092242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:45,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:45,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:58:45,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286540911] [2023-11-29 01:58:45,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:45,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:58:45,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:45,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:58:45,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:58:45,364 INFO L87 Difference]: Start difference. First operand 1009 states and 1467 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:58:48,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 01:58:54,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:58:58,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:59:02,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:59:06,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:59:10,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:59:14,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:59:18,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:59:22,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:59:25,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:59:25,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:25,418 INFO L93 Difference]: Finished difference Result 1952 states and 2858 transitions. [2023-11-29 01:59:25,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:59:25,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 145 [2023-11-29 01:59:25,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:25,425 INFO L225 Difference]: With dead ends: 1952 [2023-11-29 01:59:25,425 INFO L226 Difference]: Without dead ends: 1023 [2023-11-29 01:59:25,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:59:25,427 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 22 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4087 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:25,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4087 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 626 Invalid, 6 Unknown, 0 Unchecked, 39.7s Time] [2023-11-29 01:59:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2023-11-29 01:59:25,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1015. [2023-11-29 01:59:25,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 959 states have (on average 1.446298227320125) internal successors, (1387), 994 states have internal predecessors, (1387), 42 states have call successors, (42), 11 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:59:25,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1473 transitions. [2023-11-29 01:59:25,463 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1473 transitions. Word has length 145 [2023-11-29 01:59:25,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:25,464 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1473 transitions. [2023-11-29 01:59:25,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:59:25,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1473 transitions. [2023-11-29 01:59:25,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 01:59:25,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:25,465 INFO L195 NwaCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:25,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 01:59:25,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 01:59:25,665 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:59:25,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:25,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1967552454, now seen corresponding path program 1 times [2023-11-29 01:59:25,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:25,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187051272] [2023-11-29 01:59:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:25,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:25,737 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:25,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962342799] [2023-11-29 01:59:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:25,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:25,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:25,738 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:25,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 01:59:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:41,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:59:41,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-11-29 01:59:42,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:59:42,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:42,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187051272] [2023-11-29 01:59:42,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:42,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962342799] [2023-11-29 01:59:42,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962342799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:59:42,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:59:42,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:59:42,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60765431] [2023-11-29 01:59:42,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:59:42,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:59:42,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:42,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:59:42,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:59:42,159 INFO L87 Difference]: Start difference. First operand 1015 states and 1473 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:59:43,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:43,268 INFO L93 Difference]: Finished difference Result 1967 states and 2877 transitions. [2023-11-29 01:59:43,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:59:43,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 145 [2023-11-29 01:59:43,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:43,274 INFO L225 Difference]: With dead ends: 1967 [2023-11-29 01:59:43,274 INFO L226 Difference]: Without dead ends: 1027 [2023-11-29 01:59:43,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:59:43,276 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 14 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:43,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2730 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:59:43,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2023-11-29 01:59:43,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1015. [2023-11-29 01:59:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 959 states have (on average 1.446298227320125) internal successors, (1387), 994 states have internal predecessors, (1387), 42 states have call successors, (42), 11 states have call predecessors, (42), 10 states have return successors, (44), 11 states have call predecessors, (44), 42 states have call successors, (44) [2023-11-29 01:59:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1473 transitions. [2023-11-29 01:59:43,312 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1473 transitions. Word has length 145 [2023-11-29 01:59:43,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:43,313 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1473 transitions. [2023-11-29 01:59:43,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:59:43,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1473 transitions. [2023-11-29 01:59:43,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 01:59:43,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:43,314 INFO L195 NwaCegarLoop]: trace histogram [28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:43,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 01:59:43,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 01:59:43,515 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 01:59:43,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:43,515 INFO L85 PathProgramCache]: Analyzing trace with hash -938120828, now seen corresponding path program 1 times [2023-11-29 01:59:43,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:43,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739179679] [2023-11-29 01:59:43,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:43,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:43,578 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:43,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1243552179] [2023-11-29 01:59:43,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:43,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:43,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:43,579 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:43,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d352334e-8bea-458b-9e08-6224fab67278/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 01:59:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:46,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 266 conjunts are in the unsatisfiable core [2023-11-29 01:59:46,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:46,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 01:59:46,646 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 [2023-11-29 01:59:46,665 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 01:59:46,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-11-29 01:59:46,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:59:46,728 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 18 treesize of output 10 [2023-11-29 01:59:46,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 01:59:47,228 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 01:59:47,228 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 01:59:47,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 01:59:52,867 INFO L224 Elim1Store]: Index analysis took 198 ms