./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --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 ce6a3162e09155ad765d255c42023f1cbec9d995c66c63f43c14fadd8640484e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:37:14,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:37:14,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:37:14,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:37:14,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:37:14,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:37:14,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:37:14,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:37:14,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:37:14,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:37:14,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:37:14,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:37:14,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:37:14,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:37:14,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:37:14,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:37:14,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:37:14,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:37:14,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:37:14,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:37:14,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:37:14,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:37:14,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:37:14,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:37:14,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:37:14,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:37:14,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:37:14,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:37:14,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:37:14,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:37:14,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:37:14,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:37:14,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:37:14,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:37:14,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:37:14,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:37:14,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:37:14,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:37:14,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:37:14,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:37:14,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:37:14,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-13 17:37:14,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:37:14,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:37:14,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:37:14,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:37:14,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:37:14,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:37:14,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:37:14,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:37:14,295 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:37:14,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:37:14,297 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:37:14,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:37:14,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:37:14,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:37:14,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:37:14,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:37:14,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:37:14,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:37:14,299 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 17:37:14,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:37:14,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:37:14,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:37:14,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:37:14,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:37:14,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:37:14,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:37:14,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:37:14,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:37:14,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:37:14,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:37:14,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:37:14,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:37:14,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:37:14,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:37:14,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce6a3162e09155ad765d255c42023f1cbec9d995c66c63f43c14fadd8640484e [2021-11-13 17:37:14,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:37:14,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:37:14,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:37:14,683 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:37:14,684 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:37:14,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i [2021-11-13 17:37:14,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/data/457d06896/a253339395fd4d8c995e49fbb208cc05/FLAG11e0a4956 [2021-11-13 17:37:15,504 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:37:15,505 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i [2021-11-13 17:37:15,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/data/457d06896/a253339395fd4d8c995e49fbb208cc05/FLAG11e0a4956 [2021-11-13 17:37:15,699 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/data/457d06896/a253339395fd4d8c995e49fbb208cc05 [2021-11-13 17:37:15,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:37:15,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:37:15,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:37:15,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:37:15,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:37:15,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:37:15" (1/1) ... [2021-11-13 17:37:15,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38682b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:15, skipping insertion in model container [2021-11-13 17:37:15,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:37:15" (1/1) ... [2021-11-13 17:37:15,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:37:15,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:37:16,477 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i[33022,33035] [2021-11-13 17:37:16,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:37:16,766 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:37:16,803 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i[33022,33035] [2021-11-13 17:37:17,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:37:17,057 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:37:17,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17 WrapperNode [2021-11-13 17:37:17,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:37:17,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:37:17,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:37:17,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:37:17,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:37:17,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:37:17,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:37:17,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:37:17,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:37:17,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:37:17,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:37:17,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:37:17,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (1/1) ... [2021-11-13 17:37:17,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:37:17,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:17,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:37:17,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:37:17,530 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-13 17:37:17,530 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-13 17:37:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:37:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 17:37:17,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 17:37:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:37:17,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 17:37:17,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 17:37:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:37:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:37:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:37:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 17:37:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:37:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:37:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:37:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:37:17,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:37:19,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:37:19,659 INFO L299 CfgBuilder]: Removed 151 assume(true) statements. [2021-11-13 17:37:19,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:37:19 BoogieIcfgContainer [2021-11-13 17:37:19,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:37:19,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:37:19,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:37:19,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:37:19,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:37:15" (1/3) ... [2021-11-13 17:37:19,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b095e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:37:19, skipping insertion in model container [2021-11-13 17:37:19,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:37:17" (2/3) ... [2021-11-13 17:37:19,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b095e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:37:19, skipping insertion in model container [2021-11-13 17:37:19,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:37:19" (3/3) ... [2021-11-13 17:37:19,681 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test10-1.i [2021-11-13 17:37:19,685 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:37:19,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-13 17:37:19,738 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:37:19,746 INFO L339 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:37:19,746 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-13 17:37:19,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 438 states, 414 states have (on average 1.714975845410628) internal successors, (710), 424 states have internal predecessors, (710), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-13 17:37:19,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 17:37:19,785 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:19,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:19,786 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:19,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:19,792 INFO L85 PathProgramCache]: Analyzing trace with hash -165268689, now seen corresponding path program 1 times [2021-11-13 17:37:19,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:19,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299964231] [2021-11-13 17:37:19,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:19,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:37:19,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:19,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299964231] [2021-11-13 17:37:19,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299964231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:19,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:19,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:37:19,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492249874] [2021-11-13 17:37:19,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:19,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:37:19,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:20,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:37:20,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:37:20,019 INFO L87 Difference]: Start difference. First operand has 438 states, 414 states have (on average 1.714975845410628) internal successors, (710), 424 states have internal predecessors, (710), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-13 17:37:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:20,141 INFO L93 Difference]: Finished difference Result 874 states and 1482 transitions. [2021-11-13 17:37:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:37:20,144 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-13 17:37:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:20,168 INFO L225 Difference]: With dead ends: 874 [2021-11-13 17:37:20,168 INFO L226 Difference]: Without dead ends: 434 [2021-11-13 17:37:20,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:37:20,184 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.84ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:20,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 9.84ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:37:20,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-11-13 17:37:20,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2021-11-13 17:37:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 411 states have (on average 1.3333333333333333) internal successors, (548), 421 states have internal predecessors, (548), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:37:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 575 transitions. [2021-11-13 17:37:20,306 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 575 transitions. Word has length 7 [2021-11-13 17:37:20,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:20,307 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 575 transitions. [2021-11-13 17:37:20,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-13 17:37:20,308 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 575 transitions. [2021-11-13 17:37:20,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 17:37:20,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:20,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:20,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:37:20,310 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:20,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:20,314 INFO L85 PathProgramCache]: Analyzing trace with hash -165266767, now seen corresponding path program 1 times [2021-11-13 17:37:20,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:20,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851460094] [2021-11-13 17:37:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:20,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:20,385 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:20,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176767765] [2021-11-13 17:37:20,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:20,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:20,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:20,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:20,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 17:37:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:20,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 17:37:20,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:20,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-13 17:37:20,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-13 17:37:20,811 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 17:37:20,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-13 17:37:20,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 14 [2021-11-13 17:37:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:37:20,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:20,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:20,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851460094] [2021-11-13 17:37:20,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:20,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176767765] [2021-11-13 17:37:20,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176767765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:20,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:20,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:37:20,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572387949] [2021-11-13 17:37:20,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:20,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:37:20,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:20,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:37:20,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:37:20,919 INFO L87 Difference]: Start difference. First operand 434 states and 575 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-13 17:37:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:22,382 INFO L93 Difference]: Finished difference Result 524 states and 695 transitions. [2021-11-13 17:37:22,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:37:22,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2021-11-13 17:37:22,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:22,387 INFO L225 Difference]: With dead ends: 524 [2021-11-13 17:37:22,387 INFO L226 Difference]: Without dead ends: 522 [2021-11-13 17:37:22,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:37:22,389 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 197 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1222.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.76ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1374.71ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:22,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 1876 Invalid, 453 Unknown, 0 Unchecked, 16.76ms Time], IncrementalHoareTripleChecker [22 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 1374.71ms Time] [2021-11-13 17:37:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-11-13 17:37:22,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 440. [2021-11-13 17:37:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.330935251798561) internal successors, (555), 427 states have internal predecessors, (555), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:37:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 582 transitions. [2021-11-13 17:37:22,412 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 582 transitions. Word has length 7 [2021-11-13 17:37:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:22,413 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 582 transitions. [2021-11-13 17:37:22,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-13 17:37:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 582 transitions. [2021-11-13 17:37:22,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-13 17:37:22,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:22,416 INFO L514 BasicCegarLoop]: 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] [2021-11-13 17:37:22,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-13 17:37:22,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:22,633 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:22,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:22,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1977167222, now seen corresponding path program 1 times [2021-11-13 17:37:22,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:22,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265737914] [2021-11-13 17:37:22,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:22,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:37:22,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:22,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265737914] [2021-11-13 17:37:22,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265737914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:22,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:22,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:37:22,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730884884] [2021-11-13 17:37:22,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:22,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:37:22,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:22,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:37:22,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:37:22,727 INFO L87 Difference]: Start difference. First operand 440 states and 582 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2021-11-13 17:37:23,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:23,287 INFO L93 Difference]: Finished difference Result 688 states and 915 transitions. [2021-11-13 17:37:23,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:37:23,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 44 [2021-11-13 17:37:23,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:23,291 INFO L225 Difference]: With dead ends: 688 [2021-11-13 17:37:23,291 INFO L226 Difference]: Without dead ends: 440 [2021-11-13 17:37:23,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:37:23,293 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 3 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 423.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.56ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 516.78ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:23,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1557 Invalid, 169 Unknown, 0 Unchecked, 7.56ms Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 516.78ms Time] [2021-11-13 17:37:23,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-13 17:37:23,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2021-11-13 17:37:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 417 states have (on average 1.328537170263789) internal successors, (554), 427 states have internal predecessors, (554), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:37:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 581 transitions. [2021-11-13 17:37:23,315 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 581 transitions. Word has length 44 [2021-11-13 17:37:23,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:23,315 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 581 transitions. [2021-11-13 17:37:23,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2021-11-13 17:37:23,316 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 581 transitions. [2021-11-13 17:37:23,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 17:37:23,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:23,319 INFO L514 BasicCegarLoop]: 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] [2021-11-13 17:37:23,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:37:23,320 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:23,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:23,320 INFO L85 PathProgramCache]: Analyzing trace with hash 772269224, now seen corresponding path program 1 times [2021-11-13 17:37:23,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:23,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130595411] [2021-11-13 17:37:23,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:23,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:23,347 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:23,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015731392] [2021-11-13 17:37:23,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:23,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:23,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:23,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:23,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 17:37:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:23,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:37:23,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:23,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:37:23,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:23,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:23,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130595411] [2021-11-13 17:37:23,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:23,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015731392] [2021-11-13 17:37:23,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015731392] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:23,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:23,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:37:23,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374211286] [2021-11-13 17:37:23,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:23,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:37:23,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:23,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:37:23,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:37:23,795 INFO L87 Difference]: Start difference. First operand 440 states and 581 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-13 17:37:23,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:23,928 INFO L93 Difference]: Finished difference Result 893 states and 1185 transitions. [2021-11-13 17:37:23,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:37:23,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-11-13 17:37:23,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:23,933 INFO L225 Difference]: With dead ends: 893 [2021-11-13 17:37:23,933 INFO L226 Difference]: Without dead ends: 461 [2021-11-13 17:37:23,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:37:23,940 INFO L933 BasicCegarLoop]: 555 mSDtfsCounter, 9 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.18ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.12ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:23,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1095 Invalid, 72 Unknown, 0 Unchecked, 4.18ms Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 104.12ms Time] [2021-11-13 17:37:23,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-11-13 17:37:23,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 460. [2021-11-13 17:37:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.3135011441647597) internal successors, (574), 447 states have internal predecessors, (574), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:37:23,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 601 transitions. [2021-11-13 17:37:23,965 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 601 transitions. Word has length 58 [2021-11-13 17:37:23,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:23,966 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 601 transitions. [2021-11-13 17:37:23,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-13 17:37:23,966 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 601 transitions. [2021-11-13 17:37:23,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 17:37:23,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:23,979 INFO L514 BasicCegarLoop]: 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] [2021-11-13 17:37:24,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:24,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:24,202 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:24,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:24,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1801628522, now seen corresponding path program 1 times [2021-11-13 17:37:24,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:24,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964999772] [2021-11-13 17:37:24,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:24,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:24,227 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:24,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522853364] [2021-11-13 17:37:24,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:24,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:24,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:24,228 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:24,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 17:37:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:24,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:37:24,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:37:24,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:24,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:24,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964999772] [2021-11-13 17:37:24,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:24,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522853364] [2021-11-13 17:37:24,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522853364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:24,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:24,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:37:24,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631337029] [2021-11-13 17:37:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:24,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:37:24,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:24,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:37:24,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:37:24,606 INFO L87 Difference]: Start difference. First operand 460 states and 601 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2021-11-13 17:37:24,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:24,716 INFO L93 Difference]: Finished difference Result 986 states and 1296 transitions. [2021-11-13 17:37:24,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:37:24,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2021-11-13 17:37:24,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:24,721 INFO L225 Difference]: With dead ends: 986 [2021-11-13 17:37:24,721 INFO L226 Difference]: Without dead ends: 534 [2021-11-13 17:37:24,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:37:24,723 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 514 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.39ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.14ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:24,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 1488 Invalid, 66 Unknown, 0 Unchecked, 8.39ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 67.14ms Time] [2021-11-13 17:37:24,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-11-13 17:37:24,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 446. [2021-11-13 17:37:24,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 423 states have (on average 1.3073286052009456) internal successors, (553), 433 states have internal predecessors, (553), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:37:24,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 580 transitions. [2021-11-13 17:37:24,748 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 580 transitions. Word has length 58 [2021-11-13 17:37:24,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:24,748 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 580 transitions. [2021-11-13 17:37:24,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2021-11-13 17:37:24,749 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 580 transitions. [2021-11-13 17:37:24,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-13 17:37:24,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:24,751 INFO L514 BasicCegarLoop]: 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] [2021-11-13 17:37:24,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:24,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:24,976 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:24,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:24,977 INFO L85 PathProgramCache]: Analyzing trace with hash -469402596, now seen corresponding path program 1 times [2021-11-13 17:37:24,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:24,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596922885] [2021-11-13 17:37:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:24,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:25,017 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:25,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1517221121] [2021-11-13 17:37:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:25,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:25,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:25,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:25,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 17:37:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:25,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:37:25,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:37:25,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:25,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:25,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596922885] [2021-11-13 17:37:25,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:25,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517221121] [2021-11-13 17:37:25,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517221121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:25,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:25,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:37:25,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221094931] [2021-11-13 17:37:25,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:25,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:37:25,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:25,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:37:25,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:37:25,603 INFO L87 Difference]: Start difference. First operand 446 states and 580 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-13 17:37:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:25,692 INFO L93 Difference]: Finished difference Result 1112 states and 1448 transitions. [2021-11-13 17:37:25,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:37:25,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-11-13 17:37:25,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:25,701 INFO L225 Difference]: With dead ends: 1112 [2021-11-13 17:37:25,702 INFO L226 Difference]: Without dead ends: 674 [2021-11-13 17:37:25,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:37:25,704 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 250 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.14ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.45ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:25,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 1114 Invalid, 19 Unknown, 0 Unchecked, 4.14ms Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 54.45ms Time] [2021-11-13 17:37:25,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2021-11-13 17:37:25,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2021-11-13 17:37:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2975077881619939) internal successors, (833), 652 states have internal predecessors, (833), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 17:37:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 870 transitions. [2021-11-13 17:37:25,762 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 870 transitions. Word has length 58 [2021-11-13 17:37:25,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:25,763 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 870 transitions. [2021-11-13 17:37:25,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-13 17:37:25,764 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 870 transitions. [2021-11-13 17:37:25,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-13 17:37:25,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:25,767 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:25,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:25,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:25,993 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:25,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:25,993 INFO L85 PathProgramCache]: Analyzing trace with hash -168092098, now seen corresponding path program 1 times [2021-11-13 17:37:25,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:25,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834439276] [2021-11-13 17:37:25,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:25,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:26,015 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:26,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125936852] [2021-11-13 17:37:26,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:26,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:26,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:26,017 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:26,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 17:37:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:26,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 17:37:26,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:26,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-13 17:37:26,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-13 17:37:26,312 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 17:37:26,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-13 17:37:26,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 18 [2021-11-13 17:37:26,435 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-13 17:37:26,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 41 [2021-11-13 17:37:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:37:26,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:26,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:26,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834439276] [2021-11-13 17:37:26,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:26,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125936852] [2021-11-13 17:37:26,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125936852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:26,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:26,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:37:26,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125148638] [2021-11-13 17:37:26,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:26,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:37:26,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:26,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:37:26,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:37:26,598 INFO L87 Difference]: Start difference. First operand 670 states and 870 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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) [2021-11-13 17:37:28,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:28,065 INFO L93 Difference]: Finished difference Result 1248 states and 1620 transitions. [2021-11-13 17:37:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:37:28,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 73 [2021-11-13 17:37:28,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:28,071 INFO L225 Difference]: With dead ends: 1248 [2021-11-13 17:37:28,071 INFO L226 Difference]: Without dead ends: 670 [2021-11-13 17:37:28,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:37:28,073 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 97 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1217.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.46ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1359.68ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:28,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 2307 Invalid, 552 Unknown, 0 Unchecked, 11.46ms Time], IncrementalHoareTripleChecker [15 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 1359.68ms Time] [2021-11-13 17:37:28,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-11-13 17:37:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2021-11-13 17:37:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 642 states have (on average 1.2959501557632398) internal successors, (832), 652 states have internal predecessors, (832), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 17:37:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 869 transitions. [2021-11-13 17:37:28,099 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 869 transitions. Word has length 73 [2021-11-13 17:37:28,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:28,099 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 869 transitions. [2021-11-13 17:37:28,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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) [2021-11-13 17:37:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 869 transitions. [2021-11-13 17:37:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 17:37:28,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:28,101 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:28,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:28,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:28,328 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:28,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:28,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1391864653, now seen corresponding path program 1 times [2021-11-13 17:37:28,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:28,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971745414] [2021-11-13 17:37:28,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:28,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:28,378 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:28,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474539946] [2021-11-13 17:37:28,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:28,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:28,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:28,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:28,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 17:37:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:28,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:37:28,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:28,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:37:28,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:28,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:28,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971745414] [2021-11-13 17:37:28,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:28,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474539946] [2021-11-13 17:37:28,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474539946] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:28,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:28,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:37:28,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571167031] [2021-11-13 17:37:28,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:28,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:37:28,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:28,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:37:28,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:37:28,893 INFO L87 Difference]: Start difference. First operand 670 states and 869 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-13 17:37:28,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:28,978 INFO L93 Difference]: Finished difference Result 1362 states and 1777 transitions. [2021-11-13 17:37:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:37:28,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 120 [2021-11-13 17:37:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:28,984 INFO L225 Difference]: With dead ends: 1362 [2021-11-13 17:37:28,984 INFO L226 Difference]: Without dead ends: 712 [2021-11-13 17:37:28,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:37:28,987 INFO L933 BasicCegarLoop]: 548 mSDtfsCounter, 9 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.69ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.14ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:28,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1081 Invalid, 72 Unknown, 0 Unchecked, 2.69ms Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 57.14ms Time] [2021-11-13 17:37:28,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2021-11-13 17:37:29,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 710. [2021-11-13 17:37:29,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 682 states have (on average 1.278592375366569) internal successors, (872), 692 states have internal predecessors, (872), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 17:37:29,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 909 transitions. [2021-11-13 17:37:29,019 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 909 transitions. Word has length 120 [2021-11-13 17:37:29,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:29,019 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 909 transitions. [2021-11-13 17:37:29,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-13 17:37:29,020 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 909 transitions. [2021-11-13 17:37:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 17:37:29,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:29,022 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:29,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:29,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:29,236 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:29,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:29,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1452942673, now seen corresponding path program 1 times [2021-11-13 17:37:29,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:29,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720854109] [2021-11-13 17:37:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:29,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:29,269 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:29,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053690039] [2021-11-13 17:37:29,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:29,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:29,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:29,277 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:29,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 17:37:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:29,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:37:29,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:37:29,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:29,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:29,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720854109] [2021-11-13 17:37:29,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:29,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053690039] [2021-11-13 17:37:29,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053690039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:29,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:29,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:37:29,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808295191] [2021-11-13 17:37:29,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:29,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:37:29,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:29,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:37:29,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:37:29,736 INFO L87 Difference]: Start difference. First operand 710 states and 909 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2021-11-13 17:37:29,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:29,822 INFO L93 Difference]: Finished difference Result 1356 states and 1742 transitions. [2021-11-13 17:37:29,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:37:29,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 120 [2021-11-13 17:37:29,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:29,827 INFO L225 Difference]: With dead ends: 1356 [2021-11-13 17:37:29,827 INFO L226 Difference]: Without dead ends: 684 [2021-11-13 17:37:29,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:37:29,829 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 507 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.25ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.73ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:29,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 1141 Invalid, 66 Unknown, 0 Unchecked, 3.25ms Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 52.73ms Time] [2021-11-13 17:37:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2021-11-13 17:37:29,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 682. [2021-11-13 17:37:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 654 states have (on average 1.269113149847095) internal successors, (830), 664 states have internal predecessors, (830), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 17:37:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 867 transitions. [2021-11-13 17:37:29,857 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 867 transitions. Word has length 120 [2021-11-13 17:37:29,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:29,858 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 867 transitions. [2021-11-13 17:37:29,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2021-11-13 17:37:29,858 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 867 transitions. [2021-11-13 17:37:29,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-13 17:37:29,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:29,860 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:29,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:30,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-13 17:37:30,064 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:30,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:30,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1962601091, now seen corresponding path program 1 times [2021-11-13 17:37:30,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:30,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151685694] [2021-11-13 17:37:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:30,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:30,083 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:30,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227556291] [2021-11-13 17:37:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:30,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:30,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:30,085 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:30,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-13 17:37:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:30,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:37:30,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:37:30,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:30,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:30,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151685694] [2021-11-13 17:37:30,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:30,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227556291] [2021-11-13 17:37:30,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227556291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:30,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:30,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:37:30,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009116512] [2021-11-13 17:37:30,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:30,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:37:30,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:30,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:37:30,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:37:30,654 INFO L87 Difference]: Start difference. First operand 682 states and 867 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-13 17:37:30,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:30,758 INFO L93 Difference]: Finished difference Result 1543 states and 1986 transitions. [2021-11-13 17:37:30,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:37:30,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 120 [2021-11-13 17:37:30,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:30,765 INFO L225 Difference]: With dead ends: 1543 [2021-11-13 17:37:30,765 INFO L226 Difference]: Without dead ends: 921 [2021-11-13 17:37:30,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:37:30,768 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 220 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.89ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.18ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:30,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 1098 Invalid, 19 Unknown, 0 Unchecked, 2.89ms Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 69.18ms Time] [2021-11-13 17:37:30,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-13 17:37:30,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 819. [2021-11-13 17:37:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 788 states have (on average 1.2766497461928934) internal successors, (1006), 798 states have internal predecessors, (1006), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-13 17:37:30,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1049 transitions. [2021-11-13 17:37:30,807 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1049 transitions. Word has length 120 [2021-11-13 17:37:30,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:30,807 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 1049 transitions. [2021-11-13 17:37:30,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-13 17:37:30,808 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1049 transitions. [2021-11-13 17:37:30,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-13 17:37:30,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:30,810 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:30,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:31,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-13 17:37:31,036 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:31,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:31,037 INFO L85 PathProgramCache]: Analyzing trace with hash 2019311684, now seen corresponding path program 1 times [2021-11-13 17:37:31,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:31,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137292019] [2021-11-13 17:37:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:31,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:31,056 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:31,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176100743] [2021-11-13 17:37:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:31,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:31,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:31,058 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:31,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-13 17:37:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:31,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:37:31,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 17:37:31,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:37:31,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:31,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137292019] [2021-11-13 17:37:31,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:31,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176100743] [2021-11-13 17:37:31,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176100743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:31,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:31,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:37:31,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592981574] [2021-11-13 17:37:31,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:31,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:37:31,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:31,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:37:31,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:37:31,679 INFO L87 Difference]: Start difference. First operand 819 states and 1049 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-11-13 17:37:31,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:31,747 INFO L93 Difference]: Finished difference Result 1587 states and 2050 transitions. [2021-11-13 17:37:31,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:37:31,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 135 [2021-11-13 17:37:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:31,753 INFO L225 Difference]: With dead ends: 1587 [2021-11-13 17:37:31,753 INFO L226 Difference]: Without dead ends: 822 [2021-11-13 17:37:31,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:37:31,756 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 2 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.18ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.27ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:31,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1664 Invalid, 21 Unknown, 0 Unchecked, 3.18ms Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 29.27ms Time] [2021-11-13 17:37:31,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2021-11-13 17:37:31,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2021-11-13 17:37:31,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 790 states have (on average 1.2772151898734176) internal successors, (1009), 801 states have internal predecessors, (1009), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-13 17:37:31,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1055 transitions. [2021-11-13 17:37:31,790 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1055 transitions. Word has length 135 [2021-11-13 17:37:31,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:31,790 INFO L470 AbstractCegarLoop]: Abstraction has 822 states and 1055 transitions. [2021-11-13 17:37:31,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-11-13 17:37:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1055 transitions. [2021-11-13 17:37:31,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-13 17:37:31,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:31,793 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:31,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:32,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:32,016 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:32,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:32,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1160372552, now seen corresponding path program 1 times [2021-11-13 17:37:32,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:32,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557635950] [2021-11-13 17:37:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:32,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:32,033 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:32,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518640453] [2021-11-13 17:37:32,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:32,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:32,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:32,035 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:32,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-13 17:37:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:32,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 17:37:32,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:32,670 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-13 17:37:32,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:37:33,035 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 17:37:33,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:33,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557635950] [2021-11-13 17:37:33,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:37:33,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518640453] [2021-11-13 17:37:33,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518640453] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:37:33,036 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:37:33,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-13 17:37:33,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584427620] [2021-11-13 17:37:33,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:37:33,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:37:33,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:33,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:37:33,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:37:33,038 INFO L87 Difference]: Start difference. First operand 822 states and 1055 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2021-11-13 17:37:33,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:33,231 INFO L93 Difference]: Finished difference Result 1601 states and 2080 transitions. [2021-11-13 17:37:33,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:37:33,232 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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 139 [2021-11-13 17:37:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:33,238 INFO L225 Difference]: With dead ends: 1601 [2021-11-13 17:37:33,238 INFO L226 Difference]: Without dead ends: 833 [2021-11-13 17:37:33,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:37:33,241 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 15 mSDsluCounter, 2755 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.30ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.70ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:33,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 3311 Invalid, 84 Unknown, 0 Unchecked, 6.30ms Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 93.70ms Time] [2021-11-13 17:37:33,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2021-11-13 17:37:33,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 831. [2021-11-13 17:37:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 798 states have (on average 1.281954887218045) internal successors, (1023), 809 states have internal predecessors, (1023), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (27), 18 states have call predecessors, (27), 21 states have call successors, (27) [2021-11-13 17:37:33,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1072 transitions. [2021-11-13 17:37:33,280 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1072 transitions. Word has length 139 [2021-11-13 17:37:33,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:33,280 INFO L470 AbstractCegarLoop]: Abstraction has 831 states and 1072 transitions. [2021-11-13 17:37:33,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2021-11-13 17:37:33,281 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1072 transitions. [2021-11-13 17:37:33,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-13 17:37:33,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:33,283 INFO L514 BasicCegarLoop]: trace histogram [12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:33,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:33,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:33,496 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:37:33,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash 840532164, now seen corresponding path program 2 times [2021-11-13 17:37:33,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:33,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82328660] [2021-11-13 17:37:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:33,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:33,517 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:37:33,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724814192] [2021-11-13 17:37:33,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:37:33,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:37:33,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:37:33,519 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:37:33,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-13 17:40:32,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:40:32,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:40:33,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-13 17:40:33,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:40:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-13 17:40:33,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:40:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 10 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-13 17:40:33,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:40:33,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82328660] [2021-11-13 17:40:33,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 17:40:33,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724814192] [2021-11-13 17:40:33,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724814192] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:40:33,812 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:40:33,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2021-11-13 17:40:33,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715749772] [2021-11-13 17:40:33,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:40:33,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:40:33,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:40:33,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:40:33,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:40:33,815 INFO L87 Difference]: Start difference. First operand 831 states and 1072 transitions. Second operand has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 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) [2021-11-13 17:40:34,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:40:34,609 INFO L93 Difference]: Finished difference Result 1655 states and 2154 transitions. [2021-11-13 17:40:34,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 17:40:34,610 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 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 147 [2021-11-13 17:40:34,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:40:34,618 INFO L225 Difference]: With dead ends: 1655 [2021-11-13 17:40:34,618 INFO L226 Difference]: Without dead ends: 836 [2021-11-13 17:40:34,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:40:34,622 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 546 mSDsluCounter, 4407 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 4958 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.60ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 251.63ms IncrementalHoareTripleChecker+Time [2021-11-13 17:40:34,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 4958 Invalid, 281 Unknown, 0 Unchecked, 10.60ms Time], IncrementalHoareTripleChecker [29 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 251.63ms Time] [2021-11-13 17:40:34,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-11-13 17:40:34,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 830. [2021-11-13 17:40:34,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 797 states have (on average 1.286072772898369) internal successors, (1025), 808 states have internal predecessors, (1025), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (27), 18 states have call predecessors, (27), 21 states have call successors, (27) [2021-11-13 17:40:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1074 transitions. [2021-11-13 17:40:34,696 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1074 transitions. Word has length 147 [2021-11-13 17:40:34,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:40:34,697 INFO L470 AbstractCegarLoop]: Abstraction has 830 states and 1074 transitions. [2021-11-13 17:40:34,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 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) [2021-11-13 17:40:34,698 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1074 transitions. [2021-11-13 17:40:34,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-13 17:40:34,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:40:34,700 INFO L514 BasicCegarLoop]: trace histogram [22, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:40:34,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-13 17:40:34,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:40:34,916 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_int_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_int_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-13 17:40:34,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:40:34,916 INFO L85 PathProgramCache]: Analyzing trace with hash 476678124, now seen corresponding path program 3 times [2021-11-13 17:40:34,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:40:34,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629000749] [2021-11-13 17:40:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:40:34,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:40:34,947 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 17:40:34,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5126967] [2021-11-13 17:40:34,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:40:34,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:40:34,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:40:34,953 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:40:34,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c719553f-3758-4ec1-8d27-c3453e4c890f/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process