./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD --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 d5140694c8c74c602573172389066b4fd9e65df8121f12dcdad1dbbd28b45e38 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:38:21,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:38:21,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:38:21,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:38:21,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:38:21,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:38:21,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:38:21,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:38:21,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:38:21,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:38:21,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:38:21,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:38:21,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:38:21,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:38:21,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:38:21,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:38:21,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:38:21,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:38:21,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:38:21,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:38:21,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:38:21,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:38:21,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:38:21,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:38:21,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:38:21,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:38:21,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:38:21,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:38:21,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:38:21,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:38:21,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:38:21,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:38:21,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:38:21,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:38:21,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:38:21,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:38:21,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:38:21,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:38:21,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:38:21,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:38:21,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:38:21,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-28 23:38:21,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:38:21,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:38:21,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:38:21,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:38:21,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:38:21,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:38:21,318 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:38:21,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:38:21,319 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:38:21,319 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:38:21,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:38:21,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:38:21,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:38:21,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:38:21,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:38:21,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:38:21,322 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 23:38:21,322 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:38:21,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:38:21,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:38:21,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:38:21,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:38:21,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:38:21,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:38:21,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:38:21,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:38:21,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:38:21,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:38:21,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:38:21,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:38:21,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:38:21,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:38:21,328 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_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5140694c8c74c602573172389066b4fd9e65df8121f12dcdad1dbbd28b45e38 [2021-10-28 23:38:21,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:38:21,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:38:21,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:38:21,644 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:38:21,645 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:38:21,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-10-28 23:38:21,718 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/data/9c92e0d6e/d60298843a054e379446a2af8ed488cf/FLAG6a3981479 [2021-10-28 23:38:22,254 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:38:22,256 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-10-28 23:38:22,272 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/data/9c92e0d6e/d60298843a054e379446a2af8ed488cf/FLAG6a3981479 [2021-10-28 23:38:22,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/data/9c92e0d6e/d60298843a054e379446a2af8ed488cf [2021-10-28 23:38:22,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:38:22,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:38:22,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:38:22,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:38:22,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:38:22,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:38:22" (1/1) ... [2021-10-28 23:38:22,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ce4ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:22, skipping insertion in model container [2021-10-28 23:38:22,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:38:22" (1/1) ... [2021-10-28 23:38:22,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:38:22,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:38:22,829 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_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[423,436] [2021-10-28 23:38:22,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:38:22,950 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:38:22,964 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_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[423,436] [2021-10-28 23:38:23,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:38:23,034 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:38:23,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23 WrapperNode [2021-10-28 23:38:23,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:38:23,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:38:23,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:38:23,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:38:23,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:38:23,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:38:23,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:38:23,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:38:23,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:38:23,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:38:23,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:38:23,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:38:23,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (1/1) ... [2021-10-28 23:38:23,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:38:23,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:23,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:38:23,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:38:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:38:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:38:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:38:23,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:38:23,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:38:23,788 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-28 23:38:23,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:23 BoogieIcfgContainer [2021-10-28 23:38:23,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:38:23,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:38:23,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:38:23,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:38:23,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:38:22" (1/3) ... [2021-10-28 23:38:23,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1163cdcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:38:23, skipping insertion in model container [2021-10-28 23:38:23,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:23" (2/3) ... [2021-10-28 23:38:23,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1163cdcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:38:23, skipping insertion in model container [2021-10-28 23:38:23,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:23" (3/3) ... [2021-10-28 23:38:23,802 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2021-10-28 23:38:23,809 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:38:23,810 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-10-28 23:38:23,868 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:38:23,875 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 [2021-10-28 23:38:23,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-10-28 23:38:23,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 106 states have (on average 1.8396226415094339) internal successors, (195), 142 states have internal predecessors, (195), 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) [2021-10-28 23:38:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:38:23,903 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:23,903 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:23,904 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:23,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:23,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-10-28 23:38:23,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:23,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495917517] [2021-10-28 23:38:23,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:23,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:24,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:24,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495917517] [2021-10-28 23:38:24,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495917517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:24,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:24,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:38:24,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269981988] [2021-10-28 23:38:24,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:38:24,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:24,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:38:24,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:38:24,251 INFO L87 Difference]: Start difference. First operand has 143 states, 106 states have (on average 1.8396226415094339) internal successors, (195), 142 states have internal predecessors, (195), 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) 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) [2021-10-28 23:38:24,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:24,285 INFO L93 Difference]: Finished difference Result 266 states and 362 transitions. [2021-10-28 23:38:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:38:24,287 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 [2021-10-28 23:38:24,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:24,299 INFO L225 Difference]: With dead ends: 266 [2021-10-28 23:38:24,299 INFO L226 Difference]: Without dead ends: 128 [2021-10-28 23:38:24,303 INFO L786 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 [2021-10-28 23:38:24,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-28 23:38:24,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-10-28 23:38:24,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 94 states have (on average 1.648936170212766) internal successors, (155), 127 states have internal predecessors, (155), 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) [2021-10-28 23:38:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 155 transitions. [2021-10-28 23:38:24,353 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 155 transitions. Word has length 7 [2021-10-28 23:38:24,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:24,354 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 155 transitions. [2021-10-28 23:38:24,355 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) [2021-10-28 23:38:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 155 transitions. [2021-10-28 23:38:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:38:24,356 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:24,356 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:24,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:38:24,357 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:24,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:24,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-10-28 23:38:24,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:24,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559679090] [2021-10-28 23:38:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:24,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:24,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:24,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:24,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559679090] [2021-10-28 23:38:24,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559679090] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:24,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:24,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:38:24,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95967719] [2021-10-28 23:38:24,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:38:24,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:38:24,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:38:24,421 INFO L87 Difference]: Start difference. First operand 128 states and 155 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2021-10-28 23:38:24,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:24,618 INFO L93 Difference]: Finished difference Result 267 states and 327 transitions. [2021-10-28 23:38:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:38:24,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2021-10-28 23:38:24,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:24,621 INFO L225 Difference]: With dead ends: 267 [2021-10-28 23:38:24,621 INFO L226 Difference]: Without dead ends: 156 [2021-10-28 23:38:24,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:38:24,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-28 23:38:24,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2021-10-28 23:38:24,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 118 states have (on average 1.5338983050847457) internal successors, (181), 151 states have internal predecessors, (181), 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) [2021-10-28 23:38:24,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 181 transitions. [2021-10-28 23:38:24,641 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 181 transitions. Word has length 7 [2021-10-28 23:38:24,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:24,641 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 181 transitions. [2021-10-28 23:38:24,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2021-10-28 23:38:24,642 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 181 transitions. [2021-10-28 23:38:24,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:38:24,643 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:24,643 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:24,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:38:24,644 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:24,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:24,645 INFO L85 PathProgramCache]: Analyzing trace with hash 641273941, now seen corresponding path program 1 times [2021-10-28 23:38:24,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:24,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168425653] [2021-10-28 23:38:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:24,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:24,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:24,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168425653] [2021-10-28 23:38:24,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168425653] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:24,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:24,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:38:24,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971843146] [2021-10-28 23:38:24,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:24,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:24,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:24,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:24,735 INFO L87 Difference]: Start difference. First operand 152 states and 181 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-28 23:38:24,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:24,882 INFO L93 Difference]: Finished difference Result 206 states and 240 transitions. [2021-10-28 23:38:24,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:38:24,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-10-28 23:38:24,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:24,885 INFO L225 Difference]: With dead ends: 206 [2021-10-28 23:38:24,885 INFO L226 Difference]: Without dead ends: 202 [2021-10-28 23:38:24,886 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-28 23:38:24,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 154. [2021-10-28 23:38:24,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 122 states have (on average 1.5) internal successors, (183), 153 states have internal predecessors, (183), 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) [2021-10-28 23:38:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2021-10-28 23:38:24,899 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 11 [2021-10-28 23:38:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:24,900 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2021-10-28 23:38:24,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-28 23:38:24,900 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2021-10-28 23:38:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:38:24,901 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:24,901 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:24,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:38:24,902 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:24,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:24,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1595344206, now seen corresponding path program 1 times [2021-10-28 23:38:24,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:24,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163241023] [2021-10-28 23:38:24,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:24,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:24,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:24,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163241023] [2021-10-28 23:38:25,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163241023] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:25,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:25,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:38:25,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109029999] [2021-10-28 23:38:25,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:25,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:25,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:25,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:25,004 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-28 23:38:25,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:25,153 INFO L93 Difference]: Finished difference Result 335 states and 396 transitions. [2021-10-28 23:38:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:38:25,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2021-10-28 23:38:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:25,156 INFO L225 Difference]: With dead ends: 335 [2021-10-28 23:38:25,156 INFO L226 Difference]: Without dead ends: 214 [2021-10-28 23:38:25,157 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:25,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-10-28 23:38:25,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 160. [2021-10-28 23:38:25,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 130 states have (on average 1.4692307692307693) internal successors, (191), 159 states have internal predecessors, (191), 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) [2021-10-28 23:38:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2021-10-28 23:38:25,171 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 12 [2021-10-28 23:38:25,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:25,171 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2021-10-28 23:38:25,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-28 23:38:25,172 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2021-10-28 23:38:25,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:38:25,173 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:25,173 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:25,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:38:25,174 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:25,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:25,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2056836231, now seen corresponding path program 1 times [2021-10-28 23:38:25,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:25,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153769600] [2021-10-28 23:38:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:25,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:25,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:25,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153769600] [2021-10-28 23:38:25,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153769600] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:25,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:25,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:38:25,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725135158] [2021-10-28 23:38:25,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:25,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:25,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:25,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:25,267 INFO L87 Difference]: Start difference. First operand 160 states and 191 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-28 23:38:25,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:25,390 INFO L93 Difference]: Finished difference Result 211 states and 248 transitions. [2021-10-28 23:38:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:38:25,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-10-28 23:38:25,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:25,392 INFO L225 Difference]: With dead ends: 211 [2021-10-28 23:38:25,392 INFO L226 Difference]: Without dead ends: 205 [2021-10-28 23:38:25,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:38:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-28 23:38:25,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 157. [2021-10-28 23:38:25,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 132 states have (on average 1.4318181818181819) internal successors, (189), 156 states have internal predecessors, (189), 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) [2021-10-28 23:38:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 189 transitions. [2021-10-28 23:38:25,416 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 189 transitions. Word has length 13 [2021-10-28 23:38:25,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:25,417 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 189 transitions. [2021-10-28 23:38:25,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-28 23:38:25,417 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 189 transitions. [2021-10-28 23:38:25,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:38:25,418 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:25,419 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:25,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:38:25,419 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:25,420 INFO L85 PathProgramCache]: Analyzing trace with hash 465285246, now seen corresponding path program 1 times [2021-10-28 23:38:25,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:25,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718571248] [2021-10-28 23:38:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:25,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:25,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:25,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718571248] [2021-10-28 23:38:25,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718571248] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:25,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19657126] [2021-10-28 23:38:25,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:25,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:25,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:25,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:25,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:38:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:25,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:38:25,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:25,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19657126] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:25,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:25,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 23:38:25,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247813014] [2021-10-28 23:38:25,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:25,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:25,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:25,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:38:25,740 INFO L87 Difference]: Start difference. First operand 157 states and 189 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-28 23:38:25,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:25,903 INFO L93 Difference]: Finished difference Result 248 states and 291 transitions. [2021-10-28 23:38:25,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:38:25,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-10-28 23:38:25,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:25,905 INFO L225 Difference]: With dead ends: 248 [2021-10-28 23:38:25,905 INFO L226 Difference]: Without dead ends: 244 [2021-10-28 23:38:25,906 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:38:25,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-10-28 23:38:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 150. [2021-10-28 23:38:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 128 states have (on average 1.421875) internal successors, (182), 149 states have internal predecessors, (182), 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) [2021-10-28 23:38:25,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions. [2021-10-28 23:38:25,915 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 13 [2021-10-28 23:38:25,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:25,915 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 182 transitions. [2021-10-28 23:38:25,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-28 23:38:25,916 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2021-10-28 23:38:25,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 23:38:25,917 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:25,933 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:25,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:26,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 23:38:26,134 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:26,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:26,135 INFO L85 PathProgramCache]: Analyzing trace with hash 662586488, now seen corresponding path program 1 times [2021-10-28 23:38:26,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:26,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928457554] [2021-10-28 23:38:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:26,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:26,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:26,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:26,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928457554] [2021-10-28 23:38:26,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928457554] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:26,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:26,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:38:26,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100574734] [2021-10-28 23:38:26,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:38:26,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:26,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:38:26,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:38:26,198 INFO L87 Difference]: Start difference. First operand 150 states and 182 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-28 23:38:26,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:26,287 INFO L93 Difference]: Finished difference Result 198 states and 233 transitions. [2021-10-28 23:38:26,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:38:26,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-10-28 23:38:26,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:26,289 INFO L225 Difference]: With dead ends: 198 [2021-10-28 23:38:26,289 INFO L226 Difference]: Without dead ends: 194 [2021-10-28 23:38:26,289 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:38:26,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-28 23:38:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 142. [2021-10-28 23:38:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 124 states have (on average 1.403225806451613) internal successors, (174), 141 states have internal predecessors, (174), 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) [2021-10-28 23:38:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 174 transitions. [2021-10-28 23:38:26,298 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 174 transitions. Word has length 14 [2021-10-28 23:38:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:26,298 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 174 transitions. [2021-10-28 23:38:26,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-28 23:38:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 174 transitions. [2021-10-28 23:38:26,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:38:26,300 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:26,300 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:26,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:38:26,300 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:26,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:26,301 INFO L85 PathProgramCache]: Analyzing trace with hash -47207071, now seen corresponding path program 1 times [2021-10-28 23:38:26,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:26,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748906074] [2021-10-28 23:38:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:26,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:26,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:26,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:26,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748906074] [2021-10-28 23:38:26,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748906074] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:26,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:26,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:38:26,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522740160] [2021-10-28 23:38:26,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:26,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:26,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:26,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:26,344 INFO L87 Difference]: Start difference. First operand 142 states and 174 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-10-28 23:38:26,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:26,432 INFO L93 Difference]: Finished difference Result 196 states and 232 transitions. [2021-10-28 23:38:26,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:38:26,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2021-10-28 23:38:26,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:26,434 INFO L225 Difference]: With dead ends: 196 [2021-10-28 23:38:26,434 INFO L226 Difference]: Without dead ends: 194 [2021-10-28 23:38:26,435 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:38:26,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-28 23:38:26,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 144. [2021-10-28 23:38:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 127 states have (on average 1.3858267716535433) internal successors, (176), 143 states have internal predecessors, (176), 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) [2021-10-28 23:38:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 176 transitions. [2021-10-28 23:38:26,444 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 176 transitions. Word has length 15 [2021-10-28 23:38:26,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:26,444 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 176 transitions. [2021-10-28 23:38:26,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-10-28 23:38:26,444 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 176 transitions. [2021-10-28 23:38:26,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:38:26,445 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:26,471 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:26,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:38:26,472 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:26,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:26,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1172929667, now seen corresponding path program 1 times [2021-10-28 23:38:26,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:26,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877906322] [2021-10-28 23:38:26,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:26,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:26,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:26,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877906322] [2021-10-28 23:38:26,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877906322] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:26,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:26,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:38:26,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052989758] [2021-10-28 23:38:26,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:26,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:26,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:26,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:26,516 INFO L87 Difference]: Start difference. First operand 144 states and 176 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-28 23:38:26,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:26,605 INFO L93 Difference]: Finished difference Result 194 states and 231 transitions. [2021-10-28 23:38:26,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:38:26,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2021-10-28 23:38:26,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:26,607 INFO L225 Difference]: With dead ends: 194 [2021-10-28 23:38:26,607 INFO L226 Difference]: Without dead ends: 192 [2021-10-28 23:38:26,608 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:38:26,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-10-28 23:38:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 138. [2021-10-28 23:38:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 123 states have (on average 1.3739837398373984) internal successors, (169), 137 states have internal predecessors, (169), 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) [2021-10-28 23:38:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 169 transitions. [2021-10-28 23:38:26,618 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 169 transitions. Word has length 16 [2021-10-28 23:38:26,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:26,618 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 169 transitions. [2021-10-28 23:38:26,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-28 23:38:26,619 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 169 transitions. [2021-10-28 23:38:26,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:38:26,619 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:26,620 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:26,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 23:38:26,620 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:26,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:26,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1012839294, now seen corresponding path program 1 times [2021-10-28 23:38:26,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:26,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814381519] [2021-10-28 23:38:26,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:26,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:26,652 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:38:26,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:26,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814381519] [2021-10-28 23:38:26,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814381519] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:26,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:26,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:38:26,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022493472] [2021-10-28 23:38:26,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:26,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:26,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:26,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:26,654 INFO L87 Difference]: Start difference. First operand 138 states and 169 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-28 23:38:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:26,742 INFO L93 Difference]: Finished difference Result 232 states and 271 transitions. [2021-10-28 23:38:26,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:38:26,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 17 [2021-10-28 23:38:26,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:26,744 INFO L225 Difference]: With dead ends: 232 [2021-10-28 23:38:26,744 INFO L226 Difference]: Without dead ends: 228 [2021-10-28 23:38:26,745 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:26,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-10-28 23:38:26,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 129. [2021-10-28 23:38:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 128 states have internal predecessors, (160), 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) [2021-10-28 23:38:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 160 transitions. [2021-10-28 23:38:26,754 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 160 transitions. Word has length 17 [2021-10-28 23:38:26,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:26,755 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 160 transitions. [2021-10-28 23:38:26,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-10-28 23:38:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 160 transitions. [2021-10-28 23:38:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:38:26,756 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:26,756 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:26,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 23:38:26,757 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:26,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:26,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1503531701, now seen corresponding path program 1 times [2021-10-28 23:38:26,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:26,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924289381] [2021-10-28 23:38:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:26,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:26,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:26,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:26,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924289381] [2021-10-28 23:38:26,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924289381] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:26,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:26,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:38:26,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694732718] [2021-10-28 23:38:26,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:26,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:26,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:26,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:26,837 INFO L87 Difference]: Start difference. First operand 129 states and 160 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-10-28 23:38:26,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:26,924 INFO L93 Difference]: Finished difference Result 179 states and 214 transitions. [2021-10-28 23:38:26,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:38:26,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2021-10-28 23:38:26,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:26,928 INFO L225 Difference]: With dead ends: 179 [2021-10-28 23:38:26,928 INFO L226 Difference]: Without dead ends: 177 [2021-10-28 23:38:26,929 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:38:26,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-10-28 23:38:26,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 124. [2021-10-28 23:38:26,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 114 states have (on average 1.3596491228070176) internal successors, (155), 123 states have internal predecessors, (155), 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) [2021-10-28 23:38:26,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 155 transitions. [2021-10-28 23:38:26,939 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 155 transitions. Word has length 18 [2021-10-28 23:38:26,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:26,940 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 155 transitions. [2021-10-28 23:38:26,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-10-28 23:38:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 155 transitions. [2021-10-28 23:38:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:38:26,941 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:26,942 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:26,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 23:38:26,943 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:26,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:26,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1714169845, now seen corresponding path program 1 times [2021-10-28 23:38:26,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:26,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648774308] [2021-10-28 23:38:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:26,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:27,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:27,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648774308] [2021-10-28 23:38:27,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648774308] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:27,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:27,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:38:27,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399354318] [2021-10-28 23:38:27,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:38:27,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:27,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:38:27,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:38:27,015 INFO L87 Difference]: Start difference. First operand 124 states and 155 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-10-28 23:38:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:27,076 INFO L93 Difference]: Finished difference Result 197 states and 243 transitions. [2021-10-28 23:38:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:38:27,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-10-28 23:38:27,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:27,087 INFO L225 Difference]: With dead ends: 197 [2021-10-28 23:38:27,087 INFO L226 Difference]: Without dead ends: 116 [2021-10-28 23:38:27,088 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:38:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-28 23:38:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-10-28 23:38:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 115 states have internal predecessors, (142), 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) [2021-10-28 23:38:27,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 142 transitions. [2021-10-28 23:38:27,098 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 142 transitions. Word has length 20 [2021-10-28 23:38:27,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:27,098 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 142 transitions. [2021-10-28 23:38:27,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-10-28 23:38:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 142 transitions. [2021-10-28 23:38:27,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:38:27,100 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:27,100 INFO L513 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] [2021-10-28 23:38:27,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 23:38:27,100 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:27,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:27,101 INFO L85 PathProgramCache]: Analyzing trace with hash 120036563, now seen corresponding path program 1 times [2021-10-28 23:38:27,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:27,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405804481] [2021-10-28 23:38:27,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:27,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:27,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:27,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405804481] [2021-10-28 23:38:27,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405804481] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:27,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:27,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:38:27,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454183677] [2021-10-28 23:38:27,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:27,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:27,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:27,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:27,196 INFO L87 Difference]: Start difference. First operand 116 states and 142 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-10-28 23:38:27,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:27,260 INFO L93 Difference]: Finished difference Result 212 states and 256 transitions. [2021-10-28 23:38:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:38:27,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2021-10-28 23:38:27,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:27,262 INFO L225 Difference]: With dead ends: 212 [2021-10-28 23:38:27,262 INFO L226 Difference]: Without dead ends: 112 [2021-10-28 23:38:27,264 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:27,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-28 23:38:27,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2021-10-28 23:38:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 98 states have (on average 1.316326530612245) internal successors, (129), 107 states have internal predecessors, (129), 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) [2021-10-28 23:38:27,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2021-10-28 23:38:27,272 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 29 [2021-10-28 23:38:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:27,273 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-10-28 23:38:27,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-10-28 23:38:27,273 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-10-28 23:38:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 23:38:27,276 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:27,277 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:27,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 23:38:27,278 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:27,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:27,279 INFO L85 PathProgramCache]: Analyzing trace with hash -53723030, now seen corresponding path program 1 times [2021-10-28 23:38:27,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:27,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182590594] [2021-10-28 23:38:27,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:27,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:27,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:27,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182590594] [2021-10-28 23:38:27,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182590594] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:27,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587866144] [2021-10-28 23:38:27,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:27,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:27,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:27,359 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:27,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:38:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:27,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:38:27,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:27,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587866144] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:27,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:27,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 23:38:27,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624313093] [2021-10-28 23:38:27,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:38:27,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:27,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:38:27,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:38:27,553 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-10-28 23:38:27,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:27,649 INFO L93 Difference]: Finished difference Result 266 states and 311 transitions. [2021-10-28 23:38:27,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:38:27,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 33 [2021-10-28 23:38:27,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:27,652 INFO L225 Difference]: With dead ends: 266 [2021-10-28 23:38:27,652 INFO L226 Difference]: Without dead ends: 177 [2021-10-28 23:38:27,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:38:27,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-10-28 23:38:27,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 118. [2021-10-28 23:38:27,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 108 states have (on average 1.3055555555555556) internal successors, (141), 117 states have internal predecessors, (141), 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) [2021-10-28 23:38:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 141 transitions. [2021-10-28 23:38:27,665 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 141 transitions. Word has length 33 [2021-10-28 23:38:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:27,665 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 141 transitions. [2021-10-28 23:38:27,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-10-28 23:38:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 141 transitions. [2021-10-28 23:38:27,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:38:27,667 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:27,668 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:27,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:27,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 23:38:27,893 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:27,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:27,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1040699320, now seen corresponding path program 1 times [2021-10-28 23:38:27,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:27,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758795394] [2021-10-28 23:38:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:27,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:27,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:27,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758795394] [2021-10-28 23:38:27,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758795394] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:27,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974911324] [2021-10-28 23:38:27,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:27,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:27,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:27,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:28,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:38:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:28,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:38:28,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:28,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 23:38:28,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974911324] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:28,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:28,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2021-10-28 23:38:28,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727816851] [2021-10-28 23:38:28,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:38:28,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:28,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:38:28,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:28,238 INFO L87 Difference]: Start difference. First operand 118 states and 141 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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) [2021-10-28 23:38:28,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:28,408 INFO L93 Difference]: Finished difference Result 224 states and 268 transitions. [2021-10-28 23:38:28,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:38:28,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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 34 [2021-10-28 23:38:28,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:28,412 INFO L225 Difference]: With dead ends: 224 [2021-10-28 23:38:28,412 INFO L226 Difference]: Without dead ends: 101 [2021-10-28 23:38:28,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:38:28,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-28 23:38:28,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2021-10-28 23:38:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 96 states have internal predecessors, (113), 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) [2021-10-28 23:38:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 113 transitions. [2021-10-28 23:38:28,422 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 113 transitions. Word has length 34 [2021-10-28 23:38:28,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:28,426 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 113 transitions. [2021-10-28 23:38:28,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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) [2021-10-28 23:38:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 113 transitions. [2021-10-28 23:38:28,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 23:38:28,427 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:28,427 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:28,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:28,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-28 23:38:28,643 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:28,643 INFO L85 PathProgramCache]: Analyzing trace with hash 262910457, now seen corresponding path program 1 times [2021-10-28 23:38:28,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:28,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309400444] [2021-10-28 23:38:28,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:28,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:28,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:28,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:28,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309400444] [2021-10-28 23:38:28,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309400444] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:28,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454411122] [2021-10-28 23:38:28,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:28,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:28,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:28,735 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:28,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:38:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:28,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:38:28,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 23:38:29,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454411122] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:29,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:29,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2021-10-28 23:38:29,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159653051] [2021-10-28 23:38:29,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:38:29,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:29,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:38:29,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:38:29,019 INFO L87 Difference]: Start difference. First operand 97 states and 113 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 23:38:29,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:29,152 INFO L93 Difference]: Finished difference Result 132 states and 149 transitions. [2021-10-28 23:38:29,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:38:29,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 38 [2021-10-28 23:38:29,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:29,155 INFO L225 Difference]: With dead ends: 132 [2021-10-28 23:38:29,155 INFO L226 Difference]: Without dead ends: 101 [2021-10-28 23:38:29,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:38:29,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-28 23:38:29,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2021-10-28 23:38:29,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 96 states have internal predecessors, (112), 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) [2021-10-28 23:38:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2021-10-28 23:38:29,164 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 38 [2021-10-28 23:38:29,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:29,165 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2021-10-28 23:38:29,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 23:38:29,165 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2021-10-28 23:38:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 23:38:29,166 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:29,166 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:29,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:29,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 23:38:29,393 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:29,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:29,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1498651123, now seen corresponding path program 1 times [2021-10-28 23:38:29,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:29,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967352655] [2021-10-28 23:38:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:29,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:29,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:29,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967352655] [2021-10-28 23:38:29,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967352655] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:29,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360464538] [2021-10-28 23:38:29,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:29,454 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:29,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:29,455 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:29,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:38:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:29,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:38:29,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 23:38:29,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360464538] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:29,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:29,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2021-10-28 23:38:29,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636009275] [2021-10-28 23:38:29,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:38:29,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:29,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:38:29,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:38:29,700 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-10-28 23:38:29,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:29,823 INFO L93 Difference]: Finished difference Result 184 states and 206 transitions. [2021-10-28 23:38:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:38:29,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 40 [2021-10-28 23:38:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:29,825 INFO L225 Difference]: With dead ends: 184 [2021-10-28 23:38:29,825 INFO L226 Difference]: Without dead ends: 152 [2021-10-28 23:38:29,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:38:29,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-28 23:38:29,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 118. [2021-10-28 23:38:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 108 states have (on average 1.2685185185185186) internal successors, (137), 117 states have internal predecessors, (137), 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) [2021-10-28 23:38:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2021-10-28 23:38:29,837 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 40 [2021-10-28 23:38:29,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:29,838 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2021-10-28 23:38:29,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-10-28 23:38:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2021-10-28 23:38:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 23:38:29,839 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:29,839 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:29,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:30,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-28 23:38:30,057 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:30,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:30,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1021308811, now seen corresponding path program 1 times [2021-10-28 23:38:30,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:30,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930346751] [2021-10-28 23:38:30,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:30,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:30,141 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:30,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:30,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930346751] [2021-10-28 23:38:30,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930346751] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:30,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842312408] [2021-10-28 23:38:30,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:30,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:30,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:30,144 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:30,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:38:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:30,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:38:30,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 23:38:30,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842312408] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:30,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:30,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2021-10-28 23:38:30,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490685893] [2021-10-28 23:38:30,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:38:30,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:30,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:38:30,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:38:30,455 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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) [2021-10-28 23:38:30,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:30,619 INFO L93 Difference]: Finished difference Result 153 states and 173 transitions. [2021-10-28 23:38:30,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:38:30,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 40 [2021-10-28 23:38:30,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:30,620 INFO L225 Difference]: With dead ends: 153 [2021-10-28 23:38:30,620 INFO L226 Difference]: Without dead ends: 99 [2021-10-28 23:38:30,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:38:30,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-28 23:38:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-28 23:38:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.264367816091954) internal successors, (110), 96 states have internal predecessors, (110), 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) [2021-10-28 23:38:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2021-10-28 23:38:30,647 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 40 [2021-10-28 23:38:30,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:30,648 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2021-10-28 23:38:30,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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) [2021-10-28 23:38:30,648 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2021-10-28 23:38:30,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 23:38:30,649 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:30,649 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:30,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:30,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 23:38:30,877 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:30,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:30,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1227759650, now seen corresponding path program 1 times [2021-10-28 23:38:30,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:30,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912999496] [2021-10-28 23:38:30,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:30,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:30,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:30,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912999496] [2021-10-28 23:38:30,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912999496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:30,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190705324] [2021-10-28 23:38:30,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:30,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:30,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:30,931 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:30,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:38:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:31,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:38:31,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:31,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190705324] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:31,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:31,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 23:38:31,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997853121] [2021-10-28 23:38:31,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:38:31,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:31,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:38:31,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:38:31,245 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-10-28 23:38:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:31,310 INFO L93 Difference]: Finished difference Result 172 states and 195 transitions. [2021-10-28 23:38:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:38:31,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 44 [2021-10-28 23:38:31,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:31,312 INFO L225 Difference]: With dead ends: 172 [2021-10-28 23:38:31,312 INFO L226 Difference]: Without dead ends: 99 [2021-10-28 23:38:31,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:38:31,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-28 23:38:31,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-28 23:38:31,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.2528735632183907) internal successors, (109), 96 states have internal predecessors, (109), 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) [2021-10-28 23:38:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2021-10-28 23:38:31,320 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 44 [2021-10-28 23:38:31,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:31,321 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2021-10-28 23:38:31,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-10-28 23:38:31,321 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2021-10-28 23:38:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-28 23:38:31,322 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:31,322 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:31,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:31,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:31,526 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:31,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:31,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1163341703, now seen corresponding path program 1 times [2021-10-28 23:38:31,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:31,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856117175] [2021-10-28 23:38:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:31,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:31,571 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:31,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:31,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856117175] [2021-10-28 23:38:31,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856117175] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:31,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671461548] [2021-10-28 23:38:31,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:31,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:31,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:31,574 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:31,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:38:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:31,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:38:31,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:31,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671461548] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:31,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:31,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 23:38:31,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7383477] [2021-10-28 23:38:31,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:38:31,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:31,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:38:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:38:31,838 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-10-28 23:38:31,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:31,906 INFO L93 Difference]: Finished difference Result 217 states and 243 transitions. [2021-10-28 23:38:31,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:38:31,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 48 [2021-10-28 23:38:31,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:31,908 INFO L225 Difference]: With dead ends: 217 [2021-10-28 23:38:31,908 INFO L226 Difference]: Without dead ends: 147 [2021-10-28 23:38:31,908 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:38:31,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-10-28 23:38:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 102. [2021-10-28 23:38:31,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 92 states have (on average 1.25) internal successors, (115), 101 states have internal predecessors, (115), 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) [2021-10-28 23:38:31,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 115 transitions. [2021-10-28 23:38:31,917 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 115 transitions. Word has length 48 [2021-10-28 23:38:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:31,917 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 115 transitions. [2021-10-28 23:38:31,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-10-28 23:38:31,918 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 115 transitions. [2021-10-28 23:38:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 23:38:31,918 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:31,919 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-10-28 23:38:31,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:32,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:32,133 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:32,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:32,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1852806157, now seen corresponding path program 2 times [2021-10-28 23:38:32,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:32,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680250598] [2021-10-28 23:38:32,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:32,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:32,199 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:32,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:32,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680250598] [2021-10-28 23:38:32,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680250598] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:32,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557826314] [2021-10-28 23:38:32,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:38:32,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:32,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:32,201 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:32,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:38:32,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:38:32,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:32,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:38:32,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-28 23:38:32,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557826314] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:32,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:32,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-10-28 23:38:32,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911388327] [2021-10-28 23:38:32,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:38:32,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:32,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:38:32,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:32,548 INFO L87 Difference]: Start difference. First operand 102 states and 115 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-10-28 23:38:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:32,715 INFO L93 Difference]: Finished difference Result 254 states and 279 transitions. [2021-10-28 23:38:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:38:32,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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 49 [2021-10-28 23:38:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:32,717 INFO L225 Difference]: With dead ends: 254 [2021-10-28 23:38:32,717 INFO L226 Difference]: Without dead ends: 225 [2021-10-28 23:38:32,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:38:32,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-28 23:38:32,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 129. [2021-10-28 23:38:32,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 128 states have internal predecessors, (147), 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) [2021-10-28 23:38:32,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2021-10-28 23:38:32,730 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 49 [2021-10-28 23:38:32,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:32,731 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2021-10-28 23:38:32,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-10-28 23:38:32,731 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2021-10-28 23:38:32,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:38:32,732 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:32,732 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-10-28 23:38:32,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:32,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-28 23:38:32,957 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:32,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:32,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1864699345, now seen corresponding path program 1 times [2021-10-28 23:38:32,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:32,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036982924] [2021-10-28 23:38:32,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:32,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:33,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:33,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036982924] [2021-10-28 23:38:33,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036982924] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:33,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606310265] [2021-10-28 23:38:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:33,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:33,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:33,045 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:33,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:38:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:33,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:38:33,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:33,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606310265] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:33,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:33,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 23:38:33,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770047555] [2021-10-28 23:38:33,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:38:33,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:33,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:38:33,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:38:33,434 INFO L87 Difference]: Start difference. First operand 129 states and 147 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-10-28 23:38:33,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:33,592 INFO L93 Difference]: Finished difference Result 231 states and 264 transitions. [2021-10-28 23:38:33,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:38:33,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 51 [2021-10-28 23:38:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:33,593 INFO L225 Difference]: With dead ends: 231 [2021-10-28 23:38:33,593 INFO L226 Difference]: Without dead ends: 131 [2021-10-28 23:38:33,594 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:38:33,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-28 23:38:33,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2021-10-28 23:38:33,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 119 states have (on average 1.226890756302521) internal successors, (146), 128 states have internal predecessors, (146), 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) [2021-10-28 23:38:33,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 146 transitions. [2021-10-28 23:38:33,602 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 146 transitions. Word has length 51 [2021-10-28 23:38:33,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:33,603 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 146 transitions. [2021-10-28 23:38:33,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-10-28 23:38:33,603 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 146 transitions. [2021-10-28 23:38:33,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 23:38:33,604 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:33,604 INFO L513 BasicCegarLoop]: trace histogram [5, 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] [2021-10-28 23:38:33,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:33,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-28 23:38:33,817 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:33,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:33,818 INFO L85 PathProgramCache]: Analyzing trace with hash 539908934, now seen corresponding path program 1 times [2021-10-28 23:38:33,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:33,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944697018] [2021-10-28 23:38:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:33,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:33,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:33,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944697018] [2021-10-28 23:38:33,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944697018] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:33,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281111609] [2021-10-28 23:38:33,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:33,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:33,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:33,900 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:33,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:38:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:34,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:38:34,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:34,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281111609] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:34,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:34,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-28 23:38:34,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622635123] [2021-10-28 23:38:34,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:38:34,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:34,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:38:34,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:38:34,283 INFO L87 Difference]: Start difference. First operand 129 states and 146 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-10-28 23:38:34,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:34,376 INFO L93 Difference]: Finished difference Result 284 states and 321 transitions. [2021-10-28 23:38:34,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:38:34,376 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 55 [2021-10-28 23:38:34,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:34,378 INFO L225 Difference]: With dead ends: 284 [2021-10-28 23:38:34,378 INFO L226 Difference]: Without dead ends: 187 [2021-10-28 23:38:34,378 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:38:34,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-28 23:38:34,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 134. [2021-10-28 23:38:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 124 states have (on average 1.2258064516129032) internal successors, (152), 133 states have internal predecessors, (152), 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) [2021-10-28 23:38:34,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 152 transitions. [2021-10-28 23:38:34,405 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 152 transitions. Word has length 55 [2021-10-28 23:38:34,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:34,405 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 152 transitions. [2021-10-28 23:38:34,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-10-28 23:38:34,406 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 152 transitions. [2021-10-28 23:38:34,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 23:38:34,407 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:34,407 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:34,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:34,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:34,621 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:34,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:34,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1286189084, now seen corresponding path program 2 times [2021-10-28 23:38:34,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:34,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930842415] [2021-10-28 23:38:34,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:34,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:34,702 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:34,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:34,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930842415] [2021-10-28 23:38:34,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930842415] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:34,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818910303] [2021-10-28 23:38:34,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:38:34,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:34,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:34,705 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:34,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:38:34,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:38:34,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:34,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:38:34,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 23:38:35,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818910303] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:35,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:35,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2021-10-28 23:38:35,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095272108] [2021-10-28 23:38:35,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:38:35,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:35,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:38:35,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:38:35,100 INFO L87 Difference]: Start difference. First operand 134 states and 152 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-10-28 23:38:35,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:35,198 INFO L93 Difference]: Finished difference Result 209 states and 230 transitions. [2021-10-28 23:38:35,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:38:35,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 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 56 [2021-10-28 23:38:35,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:35,200 INFO L225 Difference]: With dead ends: 209 [2021-10-28 23:38:35,200 INFO L226 Difference]: Without dead ends: 208 [2021-10-28 23:38:35,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:38:35,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-28 23:38:35,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 156. [2021-10-28 23:38:35,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 146 states have (on average 1.2191780821917808) internal successors, (178), 155 states have internal predecessors, (178), 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) [2021-10-28 23:38:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 178 transitions. [2021-10-28 23:38:35,213 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 178 transitions. Word has length 56 [2021-10-28 23:38:35,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:35,213 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 178 transitions. [2021-10-28 23:38:35,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-10-28 23:38:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 178 transitions. [2021-10-28 23:38:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 23:38:35,215 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:35,215 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:35,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:35,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:35,437 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:35,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:35,438 INFO L85 PathProgramCache]: Analyzing trace with hash -979368296, now seen corresponding path program 1 times [2021-10-28 23:38:35,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:35,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665743021] [2021-10-28 23:38:35,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:35,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:35,526 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:35,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:35,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665743021] [2021-10-28 23:38:35,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665743021] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:35,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650680536] [2021-10-28 23:38:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:35,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:35,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:35,528 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:35,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 23:38:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:35,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:38:35,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:36,051 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:36,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650680536] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:36,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:36,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-28 23:38:36,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075587750] [2021-10-28 23:38:36,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:38:36,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:36,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:38:36,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:38:36,053 INFO L87 Difference]: Start difference. First operand 156 states and 178 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2021-10-28 23:38:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:36,223 INFO L93 Difference]: Finished difference Result 280 states and 321 transitions. [2021-10-28 23:38:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:38:36,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 56 [2021-10-28 23:38:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:36,227 INFO L225 Difference]: With dead ends: 280 [2021-10-28 23:38:36,227 INFO L226 Difference]: Without dead ends: 158 [2021-10-28 23:38:36,227 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:38:36,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-28 23:38:36,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2021-10-28 23:38:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 146 states have (on average 1.2123287671232876) internal successors, (177), 155 states have internal predecessors, (177), 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) [2021-10-28 23:38:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 177 transitions. [2021-10-28 23:38:36,237 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 177 transitions. Word has length 56 [2021-10-28 23:38:36,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:36,238 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 177 transitions. [2021-10-28 23:38:36,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2021-10-28 23:38:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 177 transitions. [2021-10-28 23:38:36,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 23:38:36,241 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:36,241 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:36,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:36,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-28 23:38:36,458 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:36,459 INFO L85 PathProgramCache]: Analyzing trace with hash -940339921, now seen corresponding path program 1 times [2021-10-28 23:38:36,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:36,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676944902] [2021-10-28 23:38:36,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:36,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:36,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:36,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676944902] [2021-10-28 23:38:36,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676944902] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:36,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810455360] [2021-10-28 23:38:36,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:36,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:36,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:36,561 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:36,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 23:38:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:36,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:38:36,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:36,972 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:36,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810455360] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:36,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:36,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-28 23:38:36,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222848225] [2021-10-28 23:38:36,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:38:36,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:36,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:38:36,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:38:36,975 INFO L87 Difference]: Start difference. First operand 156 states and 177 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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) [2021-10-28 23:38:37,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:37,064 INFO L93 Difference]: Finished difference Result 316 states and 358 transitions. [2021-10-28 23:38:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:38:37,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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 60 [2021-10-28 23:38:37,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:37,075 INFO L225 Difference]: With dead ends: 316 [2021-10-28 23:38:37,075 INFO L226 Difference]: Without dead ends: 197 [2021-10-28 23:38:37,075 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:38:37,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-28 23:38:37,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 161. [2021-10-28 23:38:37,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 151 states have (on average 1.2119205298013245) internal successors, (183), 160 states have internal predecessors, (183), 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) [2021-10-28 23:38:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 183 transitions. [2021-10-28 23:38:37,088 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 183 transitions. Word has length 60 [2021-10-28 23:38:37,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:37,088 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 183 transitions. [2021-10-28 23:38:37,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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) [2021-10-28 23:38:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 183 transitions. [2021-10-28 23:38:37,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 23:38:37,093 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:37,093 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2021-10-28 23:38:37,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:37,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:37,321 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:37,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:37,322 INFO L85 PathProgramCache]: Analyzing trace with hash -543952381, now seen corresponding path program 2 times [2021-10-28 23:38:37,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:37,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035400640] [2021-10-28 23:38:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:37,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:37,437 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:37,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:37,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035400640] [2021-10-28 23:38:37,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035400640] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:37,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689078441] [2021-10-28 23:38:37,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:38:37,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:37,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:37,438 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:37,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 23:38:37,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:38:37,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:37,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:38:37,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-28 23:38:37,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689078441] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:37,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:37,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2021-10-28 23:38:37,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000507165] [2021-10-28 23:38:37,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:38:37,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:37,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:38:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:38:37,993 INFO L87 Difference]: Start difference. First operand 161 states and 183 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 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) [2021-10-28 23:38:38,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:38,129 INFO L93 Difference]: Finished difference Result 212 states and 234 transitions. [2021-10-28 23:38:38,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:38:38,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 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 61 [2021-10-28 23:38:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:38,132 INFO L225 Difference]: With dead ends: 212 [2021-10-28 23:38:38,132 INFO L226 Difference]: Without dead ends: 211 [2021-10-28 23:38:38,132 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:38:38,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-10-28 23:38:38,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 158. [2021-10-28 23:38:38,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 148 states have (on average 1.2094594594594594) internal successors, (179), 157 states have internal predecessors, (179), 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) [2021-10-28 23:38:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 179 transitions. [2021-10-28 23:38:38,142 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 179 transitions. Word has length 61 [2021-10-28 23:38:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:38,143 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 179 transitions. [2021-10-28 23:38:38,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 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) [2021-10-28 23:38:38,143 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 179 transitions. [2021-10-28 23:38:38,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 23:38:38,144 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:38,144 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2021-10-28 23:38:38,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:38,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-28 23:38:38,369 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:38,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:38,370 INFO L85 PathProgramCache]: Analyzing trace with hash -604164096, now seen corresponding path program 1 times [2021-10-28 23:38:38,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:38,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324292800] [2021-10-28 23:38:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:38,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:38,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:38,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324292800] [2021-10-28 23:38:38,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324292800] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:38,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131896556] [2021-10-28 23:38:38,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:38,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:38,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:38,465 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:38,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 23:38:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:38,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:38:38,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:39,092 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:39,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131896556] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:39,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:39,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-28 23:38:39,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077300473] [2021-10-28 23:38:39,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:38:39,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:39,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:38:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:38:39,094 INFO L87 Difference]: Start difference. First operand 158 states and 179 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 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) [2021-10-28 23:38:39,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:39,243 INFO L93 Difference]: Finished difference Result 279 states and 318 transitions. [2021-10-28 23:38:39,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:38:39,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 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 62 [2021-10-28 23:38:39,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:39,244 INFO L225 Difference]: With dead ends: 279 [2021-10-28 23:38:39,245 INFO L226 Difference]: Without dead ends: 160 [2021-10-28 23:38:39,245 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:38:39,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-28 23:38:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2021-10-28 23:38:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 148 states have (on average 1.2027027027027026) internal successors, (178), 157 states have internal predecessors, (178), 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) [2021-10-28 23:38:39,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 178 transitions. [2021-10-28 23:38:39,255 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 178 transitions. Word has length 62 [2021-10-28 23:38:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:39,256 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 178 transitions. [2021-10-28 23:38:39,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 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) [2021-10-28 23:38:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 178 transitions. [2021-10-28 23:38:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 23:38:39,257 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:39,257 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:39,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:39,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-28 23:38:39,473 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:39,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:39,474 INFO L85 PathProgramCache]: Analyzing trace with hash -554796599, now seen corresponding path program 1 times [2021-10-28 23:38:39,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:39,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484056831] [2021-10-28 23:38:39,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:39,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:39,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:39,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484056831] [2021-10-28 23:38:39,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484056831] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:39,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409259672] [2021-10-28 23:38:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:39,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:39,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:39,540 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:39,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 23:38:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:39,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:38:39,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:40,071 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:40,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409259672] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:40,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:40,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-28 23:38:40,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261455431] [2021-10-28 23:38:40,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:38:40,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:40,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:38:40,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:40,074 INFO L87 Difference]: Start difference. First operand 158 states and 178 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2021-10-28 23:38:40,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:40,168 INFO L93 Difference]: Finished difference Result 314 states and 354 transitions. [2021-10-28 23:38:40,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:38:40,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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 66 [2021-10-28 23:38:40,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:40,170 INFO L225 Difference]: With dead ends: 314 [2021-10-28 23:38:40,170 INFO L226 Difference]: Without dead ends: 198 [2021-10-28 23:38:40,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:40,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-28 23:38:40,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 163. [2021-10-28 23:38:40,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 153 states have (on average 1.2026143790849673) internal successors, (184), 162 states have internal predecessors, (184), 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) [2021-10-28 23:38:40,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2021-10-28 23:38:40,182 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 66 [2021-10-28 23:38:40,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:40,182 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 184 transitions. [2021-10-28 23:38:40,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2021-10-28 23:38:40,183 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 184 transitions. [2021-10-28 23:38:40,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 23:38:40,183 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:40,184 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:40,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:40,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-28 23:38:40,397 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:40,398 INFO L85 PathProgramCache]: Analyzing trace with hash -397435093, now seen corresponding path program 2 times [2021-10-28 23:38:40,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:40,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579083867] [2021-10-28 23:38:40,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:40,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:40,515 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:40,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:40,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579083867] [2021-10-28 23:38:40,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579083867] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:40,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834983840] [2021-10-28 23:38:40,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:38:40,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:40,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:40,518 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:40,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 23:38:40,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:38:40,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:40,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:38:40,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 23:38:41,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834983840] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:41,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:41,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2021-10-28 23:38:41,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186869885] [2021-10-28 23:38:41,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:38:41,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:41,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:38:41,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:38:41,242 INFO L87 Difference]: Start difference. First operand 163 states and 184 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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) [2021-10-28 23:38:41,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:41,437 INFO L93 Difference]: Finished difference Result 216 states and 237 transitions. [2021-10-28 23:38:41,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:38:41,437 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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 67 [2021-10-28 23:38:41,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:41,439 INFO L225 Difference]: With dead ends: 216 [2021-10-28 23:38:41,439 INFO L226 Difference]: Without dead ends: 213 [2021-10-28 23:38:41,439 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:38:41,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-28 23:38:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 174. [2021-10-28 23:38:41,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 164 states have (on average 1.2134146341463414) internal successors, (199), 173 states have internal predecessors, (199), 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) [2021-10-28 23:38:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 199 transitions. [2021-10-28 23:38:41,452 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 199 transitions. Word has length 67 [2021-10-28 23:38:41,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:41,452 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 199 transitions. [2021-10-28 23:38:41,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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) [2021-10-28 23:38:41,453 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 199 transitions. [2021-10-28 23:38:41,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 23:38:41,454 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:41,454 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:41,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:41,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:41,681 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:41,682 INFO L85 PathProgramCache]: Analyzing trace with hash 564414374, now seen corresponding path program 1 times [2021-10-28 23:38:41,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:41,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349588452] [2021-10-28 23:38:41,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:41,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:41,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:41,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349588452] [2021-10-28 23:38:41,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349588452] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:41,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770701589] [2021-10-28 23:38:41,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:41,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:41,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:41,819 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:41,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-28 23:38:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:42,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:38:42,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:42,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770701589] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:42,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:42,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-28 23:38:42,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531180765] [2021-10-28 23:38:42,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:38:42,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:42,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:38:42,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:42,641 INFO L87 Difference]: Start difference. First operand 174 states and 199 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 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) [2021-10-28 23:38:42,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:42,832 INFO L93 Difference]: Finished difference Result 306 states and 353 transitions. [2021-10-28 23:38:42,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:38:42,833 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-28 23:38:42,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:42,834 INFO L225 Difference]: With dead ends: 306 [2021-10-28 23:38:42,834 INFO L226 Difference]: Without dead ends: 176 [2021-10-28 23:38:42,834 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-10-28 23:38:42,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2021-10-28 23:38:42,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 164 states have (on average 1.2073170731707317) internal successors, (198), 173 states have internal predecessors, (198), 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) [2021-10-28 23:38:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 198 transitions. [2021-10-28 23:38:42,845 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 198 transitions. Word has length 68 [2021-10-28 23:38:42,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:42,845 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 198 transitions. [2021-10-28 23:38:42,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 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) [2021-10-28 23:38:42,845 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 198 transitions. [2021-10-28 23:38:42,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 23:38:42,846 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:42,847 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:42,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:43,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-10-28 23:38:43,065 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:43,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:43,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1994648451, now seen corresponding path program 1 times [2021-10-28 23:38:43,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:43,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519717637] [2021-10-28 23:38:43,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:43,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:43,149 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:43,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:43,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519717637] [2021-10-28 23:38:43,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519717637] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:43,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604655435] [2021-10-28 23:38:43,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:43,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:43,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:43,153 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:43,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-28 23:38:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:43,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:38:43,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:43,705 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:43,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604655435] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:43,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:43,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-28 23:38:43,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217623641] [2021-10-28 23:38:43,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:38:43,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:43,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:38:43,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:38:43,707 INFO L87 Difference]: Start difference. First operand 174 states and 198 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 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) [2021-10-28 23:38:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:43,805 INFO L93 Difference]: Finished difference Result 341 states and 389 transitions. [2021-10-28 23:38:43,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:38:43,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 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 72 [2021-10-28 23:38:43,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:43,807 INFO L225 Difference]: With dead ends: 341 [2021-10-28 23:38:43,807 INFO L226 Difference]: Without dead ends: 214 [2021-10-28 23:38:43,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:38:43,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-10-28 23:38:43,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 179. [2021-10-28 23:38:43,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 169 states have (on average 1.2071005917159763) internal successors, (204), 178 states have internal predecessors, (204), 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) [2021-10-28 23:38:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 204 transitions. [2021-10-28 23:38:43,818 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 204 transitions. Word has length 72 [2021-10-28 23:38:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:43,819 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 204 transitions. [2021-10-28 23:38:43,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 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) [2021-10-28 23:38:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 204 transitions. [2021-10-28 23:38:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 23:38:43,820 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:43,820 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:43,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:44,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:44,045 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:44,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:44,046 INFO L85 PathProgramCache]: Analyzing trace with hash -556569967, now seen corresponding path program 2 times [2021-10-28 23:38:44,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:44,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473120581] [2021-10-28 23:38:44,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:44,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:44,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:44,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473120581] [2021-10-28 23:38:44,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473120581] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:44,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793102456] [2021-10-28 23:38:44,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:38:44,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:44,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:44,171 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:44,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-28 23:38:44,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:38:44,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:44,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:38:44,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 23:38:44,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793102456] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:44,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:38:44,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2021-10-28 23:38:44,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529239852] [2021-10-28 23:38:44,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:38:44,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:44,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:38:44,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:38:44,862 INFO L87 Difference]: Start difference. First operand 179 states and 204 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-10-28 23:38:45,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:45,132 INFO L93 Difference]: Finished difference Result 258 states and 284 transitions. [2021-10-28 23:38:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:38:45,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 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 73 [2021-10-28 23:38:45,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:45,137 INFO L225 Difference]: With dead ends: 258 [2021-10-28 23:38:45,138 INFO L226 Difference]: Without dead ends: 257 [2021-10-28 23:38:45,139 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:38:45,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-10-28 23:38:45,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 193. [2021-10-28 23:38:45,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.2021857923497268) internal successors, (220), 192 states have internal predecessors, (220), 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) [2021-10-28 23:38:45,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 220 transitions. [2021-10-28 23:38:45,152 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 220 transitions. Word has length 73 [2021-10-28 23:38:45,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:45,152 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 220 transitions. [2021-10-28 23:38:45,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-10-28 23:38:45,153 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 220 transitions. [2021-10-28 23:38:45,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 23:38:45,153 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:45,154 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:45,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:45,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:45,380 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:45,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:45,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1283820295, now seen corresponding path program 1 times [2021-10-28 23:38:45,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:45,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409021082] [2021-10-28 23:38:45,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:45,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:45,496 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:45,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:45,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409021082] [2021-10-28 23:38:45,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409021082] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:45,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722999952] [2021-10-28 23:38:45,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:45,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:45,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:45,501 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:45,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 23:38:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:45,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 23:38:45,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:46,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722999952] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:46,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:46,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-28 23:38:46,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457487700] [2021-10-28 23:38:46,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:38:46,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:46,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:38:46,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:38:46,389 INFO L87 Difference]: Start difference. First operand 193 states and 220 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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) [2021-10-28 23:38:46,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:46,656 INFO L93 Difference]: Finished difference Result 339 states and 390 transitions. [2021-10-28 23:38:46,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:38:46,657 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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 73 [2021-10-28 23:38:46,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:46,658 INFO L225 Difference]: With dead ends: 339 [2021-10-28 23:38:46,659 INFO L226 Difference]: Without dead ends: 195 [2021-10-28 23:38:46,659 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 67 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:38:46,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-28 23:38:46,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2021-10-28 23:38:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.1967213114754098) internal successors, (219), 192 states have internal predecessors, (219), 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) [2021-10-28 23:38:46,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 219 transitions. [2021-10-28 23:38:46,671 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 219 transitions. Word has length 73 [2021-10-28 23:38:46,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:46,671 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 219 transitions. [2021-10-28 23:38:46,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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) [2021-10-28 23:38:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 219 transitions. [2021-10-28 23:38:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-28 23:38:46,672 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:46,672 INFO L513 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:46,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:46,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-10-28 23:38:46,897 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:46,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:46,898 INFO L85 PathProgramCache]: Analyzing trace with hash -679422896, now seen corresponding path program 1 times [2021-10-28 23:38:46,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:46,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059588470] [2021-10-28 23:38:46,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:46,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:46,980 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:46,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:46,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059588470] [2021-10-28 23:38:46,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059588470] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:46,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376549807] [2021-10-28 23:38:46,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:46,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:46,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:46,982 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:46,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-28 23:38:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:47,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:38:47,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:47,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376549807] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:47,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:47,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-28 23:38:47,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468118613] [2021-10-28 23:38:47,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:38:47,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:47,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:38:47,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:38:47,605 INFO L87 Difference]: Start difference. First operand 193 states and 219 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 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) [2021-10-28 23:38:47,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:47,700 INFO L93 Difference]: Finished difference Result 371 states and 423 transitions. [2021-10-28 23:38:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:38:47,701 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 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 77 [2021-10-28 23:38:47,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:47,703 INFO L225 Difference]: With dead ends: 371 [2021-10-28 23:38:47,703 INFO L226 Difference]: Without dead ends: 230 [2021-10-28 23:38:47,704 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:38:47,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-28 23:38:47,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 198. [2021-10-28 23:38:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 188 states have (on average 1.196808510638298) internal successors, (225), 197 states have internal predecessors, (225), 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) [2021-10-28 23:38:47,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 225 transitions. [2021-10-28 23:38:47,715 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 225 transitions. Word has length 77 [2021-10-28 23:38:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:47,716 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 225 transitions. [2021-10-28 23:38:47,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 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) [2021-10-28 23:38:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 225 transitions. [2021-10-28 23:38:47,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-28 23:38:47,717 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:47,717 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:47,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:47,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-28 23:38:47,933 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:47,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:47,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1903389934, now seen corresponding path program 2 times [2021-10-28 23:38:47,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:47,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350458194] [2021-10-28 23:38:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:47,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:48,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:48,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350458194] [2021-10-28 23:38:48,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350458194] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:48,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845505950] [2021-10-28 23:38:48,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:38:48,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:48,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:48,102 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:48,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-28 23:38:48,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:38:48,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:48,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:38:48,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:49,208 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:49,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845505950] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:49,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:49,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-28 23:38:49,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480498518] [2021-10-28 23:38:49,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:38:49,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:49,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:38:49,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:38:49,211 INFO L87 Difference]: Start difference. First operand 198 states and 225 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:49,495 INFO L93 Difference]: Finished difference Result 344 states and 395 transitions. [2021-10-28 23:38:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:38:49,496 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-10-28 23:38:49,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:49,499 INFO L225 Difference]: With dead ends: 344 [2021-10-28 23:38:49,499 INFO L226 Difference]: Without dead ends: 200 [2021-10-28 23:38:49,500 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 71 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:38:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-10-28 23:38:49,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2021-10-28 23:38:49,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 188 states have (on average 1.1914893617021276) internal successors, (224), 197 states have internal predecessors, (224), 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) [2021-10-28 23:38:49,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 224 transitions. [2021-10-28 23:38:49,511 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 224 transitions. Word has length 78 [2021-10-28 23:38:49,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:49,511 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 224 transitions. [2021-10-28 23:38:49,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:38:49,511 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 224 transitions. [2021-10-28 23:38:49,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-28 23:38:49,512 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:49,512 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:49,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:49,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-10-28 23:38:49,713 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:49,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:49,713 INFO L85 PathProgramCache]: Analyzing trace with hash 2141374917, now seen corresponding path program 2 times [2021-10-28 23:38:49,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:49,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815696972] [2021-10-28 23:38:49,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:49,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:49,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:49,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815696972] [2021-10-28 23:38:49,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815696972] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:49,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227608452] [2021-10-28 23:38:49,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:38:49,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:49,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:49,833 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:49,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 23:38:50,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:38:50,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:50,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:38:50,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:50,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227608452] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:50,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:50,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-28 23:38:50,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751733510] [2021-10-28 23:38:50,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:38:50,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:50,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:38:50,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:38:50,702 INFO L87 Difference]: Start difference. First operand 198 states and 224 transitions. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 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) [2021-10-28 23:38:50,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:50,775 INFO L93 Difference]: Finished difference Result 376 states and 428 transitions. [2021-10-28 23:38:50,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:38:50,779 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-10-28 23:38:50,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:50,780 INFO L225 Difference]: With dead ends: 376 [2021-10-28 23:38:50,780 INFO L226 Difference]: Without dead ends: 235 [2021-10-28 23:38:50,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:38:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-10-28 23:38:50,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 203. [2021-10-28 23:38:50,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 193 states have (on average 1.1917098445595855) internal successors, (230), 202 states have internal predecessors, (230), 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) [2021-10-28 23:38:50,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2021-10-28 23:38:50,792 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 82 [2021-10-28 23:38:50,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:50,792 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2021-10-28 23:38:50,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 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) [2021-10-28 23:38:50,792 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2021-10-28 23:38:50,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-28 23:38:50,793 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:50,794 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:50,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:51,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-28 23:38:51,009 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:51,010 INFO L85 PathProgramCache]: Analyzing trace with hash -846191079, now seen corresponding path program 3 times [2021-10-28 23:38:51,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:51,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370637459] [2021-10-28 23:38:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:51,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:51,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:51,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370637459] [2021-10-28 23:38:51,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370637459] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:51,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966366948] [2021-10-28 23:38:51,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:38:51,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:51,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:51,170 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:51,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-28 23:38:52,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-10-28 23:38:52,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:52,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:38:52,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:52,983 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:52,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966366948] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:52,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:52,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-28 23:38:52,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428141965] [2021-10-28 23:38:52,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:38:52,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:52,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:38:52,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:38:52,988 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 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) [2021-10-28 23:38:53,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:53,239 INFO L93 Difference]: Finished difference Result 349 states and 400 transitions. [2021-10-28 23:38:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:38:53,240 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 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 83 [2021-10-28 23:38:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:53,241 INFO L225 Difference]: With dead ends: 349 [2021-10-28 23:38:53,241 INFO L226 Difference]: Without dead ends: 205 [2021-10-28 23:38:53,242 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 75 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:38:53,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-28 23:38:53,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2021-10-28 23:38:53,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 193 states have (on average 1.1865284974093264) internal successors, (229), 202 states have internal predecessors, (229), 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) [2021-10-28 23:38:53,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 229 transitions. [2021-10-28 23:38:53,253 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 229 transitions. Word has length 83 [2021-10-28 23:38:53,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:53,253 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 229 transitions. [2021-10-28 23:38:53,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 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) [2021-10-28 23:38:53,254 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 229 transitions. [2021-10-28 23:38:53,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-28 23:38:53,255 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:53,255 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:53,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:53,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-28 23:38:53,462 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:53,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:53,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1625754256, now seen corresponding path program 3 times [2021-10-28 23:38:53,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:53,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822459994] [2021-10-28 23:38:53,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:53,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:53,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:53,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822459994] [2021-10-28 23:38:53,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822459994] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:53,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400799607] [2021-10-28 23:38:53,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:38:53,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:53,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:53,570 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:53,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-28 23:38:54,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-28 23:38:54,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:54,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:38:54,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:54,511 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:54,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400799607] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:54,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:54,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-10-28 23:38:54,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896700559] [2021-10-28 23:38:54,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:38:54,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:54,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:38:54,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:38:54,514 INFO L87 Difference]: Start difference. First operand 203 states and 229 transitions. Second operand has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 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) [2021-10-28 23:38:54,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:54,590 INFO L93 Difference]: Finished difference Result 381 states and 433 transitions. [2021-10-28 23:38:54,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:38:54,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 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 87 [2021-10-28 23:38:54,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:54,592 INFO L225 Difference]: With dead ends: 381 [2021-10-28 23:38:54,592 INFO L226 Difference]: Without dead ends: 240 [2021-10-28 23:38:54,592 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:38:54,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-28 23:38:54,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 208. [2021-10-28 23:38:54,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 198 states have (on average 1.1868686868686869) internal successors, (235), 207 states have internal predecessors, (235), 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) [2021-10-28 23:38:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 235 transitions. [2021-10-28 23:38:54,605 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 235 transitions. Word has length 87 [2021-10-28 23:38:54,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:54,605 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 235 transitions. [2021-10-28 23:38:54,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 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) [2021-10-28 23:38:54,606 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 235 transitions. [2021-10-28 23:38:54,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-10-28 23:38:54,607 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:54,607 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:54,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:54,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:54,813 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:54,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:54,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1663078450, now seen corresponding path program 4 times [2021-10-28 23:38:54,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:54,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421177464] [2021-10-28 23:38:54,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:54,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:54,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:54,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421177464] [2021-10-28 23:38:54,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421177464] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:54,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693501728] [2021-10-28 23:38:54,980 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:38:54,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:54,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:54,981 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:54,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-28 23:38:55,560 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:38:55,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:55,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:38:55,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:56,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693501728] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:56,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:56,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-10-28 23:38:56,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077716088] [2021-10-28 23:38:56,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:38:56,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:56,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:38:56,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:38:56,094 INFO L87 Difference]: Start difference. First operand 208 states and 235 transitions. Second operand has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 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) [2021-10-28 23:38:56,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:56,398 INFO L93 Difference]: Finished difference Result 354 states and 405 transitions. [2021-10-28 23:38:56,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:38:56,399 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 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 88 [2021-10-28 23:38:56,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:56,400 INFO L225 Difference]: With dead ends: 354 [2021-10-28 23:38:56,400 INFO L226 Difference]: Without dead ends: 210 [2021-10-28 23:38:56,401 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:38:56,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-10-28 23:38:56,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 208. [2021-10-28 23:38:56,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 198 states have (on average 1.1818181818181819) internal successors, (234), 207 states have internal predecessors, (234), 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) [2021-10-28 23:38:56,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 234 transitions. [2021-10-28 23:38:56,413 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 234 transitions. Word has length 88 [2021-10-28 23:38:56,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:56,414 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 234 transitions. [2021-10-28 23:38:56,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 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) [2021-10-28 23:38:56,414 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 234 transitions. [2021-10-28 23:38:56,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-28 23:38:56,415 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:56,416 INFO L513 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:56,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:56,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-28 23:38:56,628 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:56,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:56,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1033002149, now seen corresponding path program 4 times [2021-10-28 23:38:56,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:56,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535322070] [2021-10-28 23:38:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:56,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:56,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:56,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535322070] [2021-10-28 23:38:56,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535322070] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:56,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463557919] [2021-10-28 23:38:56,755 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:38:56,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:56,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:56,756 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:56,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-28 23:38:57,363 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:38:57,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:57,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:38:57,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:57,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463557919] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:57,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:57,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-10-28 23:38:57,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199409570] [2021-10-28 23:38:57,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:38:57,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:57,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:38:57,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:38:57,582 INFO L87 Difference]: Start difference. First operand 208 states and 234 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 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) [2021-10-28 23:38:57,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:57,688 INFO L93 Difference]: Finished difference Result 386 states and 438 transitions. [2021-10-28 23:38:57,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:38:57,689 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 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 92 [2021-10-28 23:38:57,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:57,690 INFO L225 Difference]: With dead ends: 386 [2021-10-28 23:38:57,690 INFO L226 Difference]: Without dead ends: 245 [2021-10-28 23:38:57,691 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:38:57,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-28 23:38:57,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 213. [2021-10-28 23:38:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 203 states have (on average 1.1822660098522169) internal successors, (240), 212 states have internal predecessors, (240), 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) [2021-10-28 23:38:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions. [2021-10-28 23:38:57,702 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 92 [2021-10-28 23:38:57,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:57,702 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions. [2021-10-28 23:38:57,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 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) [2021-10-28 23:38:57,703 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2021-10-28 23:38:57,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-28 23:38:57,703 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:57,703 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:57,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-10-28 23:38:57,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:57,904 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash -846008519, now seen corresponding path program 5 times [2021-10-28 23:38:57,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:57,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717624570] [2021-10-28 23:38:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:57,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:58,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:38:58,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717624570] [2021-10-28 23:38:58,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717624570] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:58,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804321404] [2021-10-28 23:38:58,111 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:38:58,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:58,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:58,112 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:38:58,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-28 23:38:58,801 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-10-28 23:38:58,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:38:58,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:38:58,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:59,402 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:59,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804321404] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:38:59,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:38:59,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-10-28 23:38:59,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12719788] [2021-10-28 23:38:59,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:38:59,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:38:59,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:38:59,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:38:59,404 INFO L87 Difference]: Start difference. First operand 213 states and 240 transitions. Second operand has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 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) [2021-10-28 23:38:59,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:59,634 INFO L93 Difference]: Finished difference Result 359 states and 410 transitions. [2021-10-28 23:38:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:38:59,635 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 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 93 [2021-10-28 23:38:59,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:59,636 INFO L225 Difference]: With dead ends: 359 [2021-10-28 23:38:59,636 INFO L226 Difference]: Without dead ends: 215 [2021-10-28 23:38:59,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 83 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:38:59,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-28 23:38:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2021-10-28 23:38:59,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 203 states have (on average 1.1773399014778325) internal successors, (239), 212 states have internal predecessors, (239), 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) [2021-10-28 23:38:59,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 239 transitions. [2021-10-28 23:38:59,650 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 239 transitions. Word has length 93 [2021-10-28 23:38:59,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:59,650 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 239 transitions. [2021-10-28 23:38:59,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 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) [2021-10-28 23:38:59,651 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 239 transitions. [2021-10-28 23:38:59,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-10-28 23:38:59,652 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:59,652 INFO L513 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:59,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:59,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:38:59,865 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:38:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:59,866 INFO L85 PathProgramCache]: Analyzing trace with hash -531485040, now seen corresponding path program 5 times [2021-10-28 23:38:59,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:38:59,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156128121] [2021-10-28 23:38:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:59,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:38:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:00,015 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:00,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:00,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156128121] [2021-10-28 23:39:00,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156128121] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:00,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604828865] [2021-10-28 23:39:00,015 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:39:00,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:00,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:00,016 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:00,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-28 23:39:00,664 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-10-28 23:39:00,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:00,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:39:00,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:00,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604828865] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:00,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:00,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-10-28 23:39:00,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764843938] [2021-10-28 23:39:00,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:39:00,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:00,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:39:00,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:39:00,901 INFO L87 Difference]: Start difference. First operand 213 states and 239 transitions. Second operand has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 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) [2021-10-28 23:39:01,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:01,011 INFO L93 Difference]: Finished difference Result 391 states and 443 transitions. [2021-10-28 23:39:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:39:01,018 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 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 97 [2021-10-28 23:39:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:01,020 INFO L225 Difference]: With dead ends: 391 [2021-10-28 23:39:01,020 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 23:39:01,020 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:39:01,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 23:39:01,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 218. [2021-10-28 23:39:01,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 208 states have (on average 1.1778846153846154) internal successors, (245), 217 states have internal predecessors, (245), 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) [2021-10-28 23:39:01,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 245 transitions. [2021-10-28 23:39:01,032 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 245 transitions. Word has length 97 [2021-10-28 23:39:01,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:01,033 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 245 transitions. [2021-10-28 23:39:01,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 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) [2021-10-28 23:39:01,033 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 245 transitions. [2021-10-28 23:39:01,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-10-28 23:39:01,034 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:01,034 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:01,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:01,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-10-28 23:39:01,257 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:01,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:01,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2100471122, now seen corresponding path program 6 times [2021-10-28 23:39:01,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:01,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665636213] [2021-10-28 23:39:01,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:01,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:01,466 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:01,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:01,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665636213] [2021-10-28 23:39:01,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665636213] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:01,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498049866] [2021-10-28 23:39:01,467 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:39:01,467 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:01,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:01,468 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:01,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-28 23:39:02,699 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-10-28 23:39:02,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:02,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 23:39:02,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:03,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498049866] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:03,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:03,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-10-28 23:39:03,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395843606] [2021-10-28 23:39:03,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:39:03,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:03,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:39:03,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:39:03,244 INFO L87 Difference]: Start difference. First operand 218 states and 245 transitions. Second operand has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 states have internal predecessors, (100), 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) [2021-10-28 23:39:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:03,540 INFO L93 Difference]: Finished difference Result 364 states and 415 transitions. [2021-10-28 23:39:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:39:03,541 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 states have internal predecessors, (100), 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 98 [2021-10-28 23:39:03,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:03,542 INFO L225 Difference]: With dead ends: 364 [2021-10-28 23:39:03,542 INFO L226 Difference]: Without dead ends: 220 [2021-10-28 23:39:03,542 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 11 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:39:03,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-28 23:39:03,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2021-10-28 23:39:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 208 states have (on average 1.1730769230769231) internal successors, (244), 217 states have internal predecessors, (244), 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) [2021-10-28 23:39:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 244 transitions. [2021-10-28 23:39:03,554 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 244 transitions. Word has length 98 [2021-10-28 23:39:03,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:03,555 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 244 transitions. [2021-10-28 23:39:03,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 states have internal predecessors, (100), 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) [2021-10-28 23:39:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 244 transitions. [2021-10-28 23:39:03,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-10-28 23:39:03,556 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:03,556 INFO L513 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:03,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:03,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-10-28 23:39:03,763 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:03,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:03,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1389352837, now seen corresponding path program 6 times [2021-10-28 23:39:03,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:03,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305952388] [2021-10-28 23:39:03,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:03,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:03,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:03,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305952388] [2021-10-28 23:39:03,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305952388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:03,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753700469] [2021-10-28 23:39:03,930 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:39:03,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:03,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:03,932 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:03,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-28 23:39:04,960 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-10-28 23:39:04,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:04,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:39:04,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:05,217 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:05,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753700469] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:05,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:05,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-10-28 23:39:05,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263959088] [2021-10-28 23:39:05,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 23:39:05,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:05,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:39:05,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:39:05,218 INFO L87 Difference]: Start difference. First operand 218 states and 244 transitions. Second operand has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 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) [2021-10-28 23:39:05,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:05,303 INFO L93 Difference]: Finished difference Result 396 states and 448 transitions. [2021-10-28 23:39:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 23:39:05,304 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 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 102 [2021-10-28 23:39:05,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:05,305 INFO L225 Difference]: With dead ends: 396 [2021-10-28 23:39:05,305 INFO L226 Difference]: Without dead ends: 255 [2021-10-28 23:39:05,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:39:05,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-28 23:39:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 223. [2021-10-28 23:39:05,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 213 states have (on average 1.1737089201877935) internal successors, (250), 222 states have internal predecessors, (250), 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) [2021-10-28 23:39:05,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 250 transitions. [2021-10-28 23:39:05,315 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 250 transitions. Word has length 102 [2021-10-28 23:39:05,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:05,315 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 250 transitions. [2021-10-28 23:39:05,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 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) [2021-10-28 23:39:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 250 transitions. [2021-10-28 23:39:05,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-28 23:39:05,316 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:05,317 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:05,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:05,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-10-28 23:39:05,524 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:05,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:05,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1610928217, now seen corresponding path program 7 times [2021-10-28 23:39:05,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:05,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100855385] [2021-10-28 23:39:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:05,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:05,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:05,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100855385] [2021-10-28 23:39:05,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100855385] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:05,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507263016] [2021-10-28 23:39:05,741 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:39:05,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:05,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:05,742 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:05,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-28 23:39:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:06,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-28 23:39:06,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:07,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507263016] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:07,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:07,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-10-28 23:39:07,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513033477] [2021-10-28 23:39:07,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 23:39:07,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:07,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:39:07,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:39:07,200 INFO L87 Difference]: Start difference. First operand 223 states and 250 transitions. Second operand has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 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) [2021-10-28 23:39:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:07,570 INFO L93 Difference]: Finished difference Result 369 states and 420 transitions. [2021-10-28 23:39:07,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 23:39:07,571 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 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 103 [2021-10-28 23:39:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:07,572 INFO L225 Difference]: With dead ends: 369 [2021-10-28 23:39:07,572 INFO L226 Difference]: Without dead ends: 225 [2021-10-28 23:39:07,572 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 91 SyntacticMatches, 12 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:39:07,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-28 23:39:07,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2021-10-28 23:39:07,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 213 states have (on average 1.1690140845070423) internal successors, (249), 222 states have internal predecessors, (249), 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) [2021-10-28 23:39:07,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 249 transitions. [2021-10-28 23:39:07,580 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 249 transitions. Word has length 103 [2021-10-28 23:39:07,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:07,580 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 249 transitions. [2021-10-28 23:39:07,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 states have internal predecessors, (105), 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) [2021-10-28 23:39:07,581 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 249 transitions. [2021-10-28 23:39:07,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-10-28 23:39:07,581 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:07,582 INFO L513 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:07,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-28 23:39:07,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:07,782 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:07,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:07,782 INFO L85 PathProgramCache]: Analyzing trace with hash 917405616, now seen corresponding path program 7 times [2021-10-28 23:39:07,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:07,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787177361] [2021-10-28 23:39:07,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:07,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:07,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:07,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787177361] [2021-10-28 23:39:07,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787177361] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:07,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161888302] [2021-10-28 23:39:07,959 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:39:07,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:07,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:07,973 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:07,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-28 23:39:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:08,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:39:08,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:09,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161888302] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:09,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:09,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-10-28 23:39:09,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218499613] [2021-10-28 23:39:09,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:39:09,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:09,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:39:09,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:39:09,033 INFO L87 Difference]: Start difference. First operand 223 states and 249 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 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) [2021-10-28 23:39:09,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:09,114 INFO L93 Difference]: Finished difference Result 401 states and 453 transitions. [2021-10-28 23:39:09,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:39:09,115 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 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 107 [2021-10-28 23:39:09,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:09,116 INFO L225 Difference]: With dead ends: 401 [2021-10-28 23:39:09,116 INFO L226 Difference]: Without dead ends: 260 [2021-10-28 23:39:09,116 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:39:09,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-10-28 23:39:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 228. [2021-10-28 23:39:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 218 states have (on average 1.1697247706422018) internal successors, (255), 227 states have internal predecessors, (255), 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) [2021-10-28 23:39:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 255 transitions. [2021-10-28 23:39:09,131 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 255 transitions. Word has length 107 [2021-10-28 23:39:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:09,131 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 255 transitions. [2021-10-28 23:39:09,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 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) [2021-10-28 23:39:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 255 transitions. [2021-10-28 23:39:09,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-10-28 23:39:09,132 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:09,132 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:09,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:09,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:09,345 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:09,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:09,345 INFO L85 PathProgramCache]: Analyzing trace with hash -134533746, now seen corresponding path program 8 times [2021-10-28 23:39:09,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:09,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928208556] [2021-10-28 23:39:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:09,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:09,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:09,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928208556] [2021-10-28 23:39:09,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928208556] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:09,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936335250] [2021-10-28 23:39:09,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:39:09,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:09,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:09,600 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:09,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-28 23:39:10,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:39:10,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:10,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-28 23:39:10,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:11,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936335250] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:11,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:11,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-10-28 23:39:11,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749038316] [2021-10-28 23:39:11,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:39:11,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:39:11,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:39:11,296 INFO L87 Difference]: Start difference. First operand 228 states and 255 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 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) [2021-10-28 23:39:11,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:11,682 INFO L93 Difference]: Finished difference Result 374 states and 425 transitions. [2021-10-28 23:39:11,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:39:11,682 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 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 108 [2021-10-28 23:39:11,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:11,683 INFO L225 Difference]: With dead ends: 374 [2021-10-28 23:39:11,683 INFO L226 Difference]: Without dead ends: 230 [2021-10-28 23:39:11,685 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 95 SyntacticMatches, 13 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:39:11,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-28 23:39:11,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2021-10-28 23:39:11,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 218 states have (on average 1.165137614678899) internal successors, (254), 227 states have internal predecessors, (254), 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) [2021-10-28 23:39:11,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 254 transitions. [2021-10-28 23:39:11,702 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 254 transitions. Word has length 108 [2021-10-28 23:39:11,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:11,702 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 254 transitions. [2021-10-28 23:39:11,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 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) [2021-10-28 23:39:11,703 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 254 transitions. [2021-10-28 23:39:11,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-10-28 23:39:11,704 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:11,704 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:11,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:11,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:11,912 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:11,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:11,912 INFO L85 PathProgramCache]: Analyzing trace with hash 85539429, now seen corresponding path program 8 times [2021-10-28 23:39:11,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:11,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514200692] [2021-10-28 23:39:11,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:11,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:12,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:12,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514200692] [2021-10-28 23:39:12,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514200692] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:12,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520509090] [2021-10-28 23:39:12,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:39:12,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:12,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:12,085 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:12,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-28 23:39:13,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:39:13,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:13,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:39:13,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:13,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520509090] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:13,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:13,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-10-28 23:39:13,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197488766] [2021-10-28 23:39:13,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:39:13,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:13,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:39:13,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:39:13,300 INFO L87 Difference]: Start difference. First operand 228 states and 254 transitions. Second operand has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 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) [2021-10-28 23:39:13,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:13,407 INFO L93 Difference]: Finished difference Result 406 states and 458 transitions. [2021-10-28 23:39:13,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:39:13,407 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 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 112 [2021-10-28 23:39:13,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:13,409 INFO L225 Difference]: With dead ends: 406 [2021-10-28 23:39:13,409 INFO L226 Difference]: Without dead ends: 265 [2021-10-28 23:39:13,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:39:13,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-28 23:39:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 233. [2021-10-28 23:39:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 223 states have (on average 1.1659192825112108) internal successors, (260), 232 states have internal predecessors, (260), 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) [2021-10-28 23:39:13,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 260 transitions. [2021-10-28 23:39:13,424 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 260 transitions. Word has length 112 [2021-10-28 23:39:13,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:13,424 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 260 transitions. [2021-10-28 23:39:13,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 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) [2021-10-28 23:39:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 260 transitions. [2021-10-28 23:39:13,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-28 23:39:13,426 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:13,426 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:13,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:13,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-28 23:39:13,641 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:13,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash -152581767, now seen corresponding path program 9 times [2021-10-28 23:39:13,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:13,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794437074] [2021-10-28 23:39:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:13,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:13,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:13,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794437074] [2021-10-28 23:39:13,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794437074] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:13,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447022246] [2021-10-28 23:39:13,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:39:13,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:13,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:13,937 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:13,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-28 23:39:17,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-10-28 23:39:17,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:17,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 23:39:17,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:18,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447022246] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:18,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:18,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-10-28 23:39:18,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031066507] [2021-10-28 23:39:18,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 23:39:18,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:18,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:39:18,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:39:18,507 INFO L87 Difference]: Start difference. First operand 233 states and 260 transitions. Second operand has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 19 states have internal predecessors, (115), 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) [2021-10-28 23:39:18,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:18,812 INFO L93 Difference]: Finished difference Result 379 states and 430 transitions. [2021-10-28 23:39:18,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:39:18,812 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 19 states have internal predecessors, (115), 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 113 [2021-10-28 23:39:18,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:18,814 INFO L225 Difference]: With dead ends: 379 [2021-10-28 23:39:18,814 INFO L226 Difference]: Without dead ends: 235 [2021-10-28 23:39:18,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 99 SyntacticMatches, 14 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:39:18,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-10-28 23:39:18,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2021-10-28 23:39:18,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 223 states have (on average 1.1614349775784754) internal successors, (259), 232 states have internal predecessors, (259), 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) [2021-10-28 23:39:18,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 259 transitions. [2021-10-28 23:39:18,827 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 259 transitions. Word has length 113 [2021-10-28 23:39:18,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:18,827 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 259 transitions. [2021-10-28 23:39:18,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 19 states have internal predecessors, (115), 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) [2021-10-28 23:39:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 259 transitions. [2021-10-28 23:39:18,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-10-28 23:39:18,829 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:18,829 INFO L513 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:18,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-28 23:39:19,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-10-28 23:39:19,037 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:19,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:19,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1127213264, now seen corresponding path program 9 times [2021-10-28 23:39:19,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:19,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359247857] [2021-10-28 23:39:19,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:19,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:19,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:19,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359247857] [2021-10-28 23:39:19,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359247857] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:19,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043016667] [2021-10-28 23:39:19,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:39:19,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:19,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:19,253 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:19,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-28 23:39:20,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-10-28 23:39:20,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:20,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 23:39:20,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:20,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043016667] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:20,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:20,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-10-28 23:39:20,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798726192] [2021-10-28 23:39:20,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 23:39:20,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:20,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:39:20,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:39:20,706 INFO L87 Difference]: Start difference. First operand 233 states and 259 transitions. Second operand has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 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) [2021-10-28 23:39:20,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:20,868 INFO L93 Difference]: Finished difference Result 411 states and 463 transitions. [2021-10-28 23:39:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:39:20,869 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 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 117 [2021-10-28 23:39:20,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:20,871 INFO L225 Difference]: With dead ends: 411 [2021-10-28 23:39:20,871 INFO L226 Difference]: Without dead ends: 270 [2021-10-28 23:39:20,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:39:20,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-28 23:39:20,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 238. [2021-10-28 23:39:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 228 states have (on average 1.162280701754386) internal successors, (265), 237 states have internal predecessors, (265), 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) [2021-10-28 23:39:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 265 transitions. [2021-10-28 23:39:20,884 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 265 transitions. Word has length 117 [2021-10-28 23:39:20,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:20,885 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 265 transitions. [2021-10-28 23:39:20,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 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) [2021-10-28 23:39:20,885 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 265 transitions. [2021-10-28 23:39:20,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-28 23:39:20,886 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:20,887 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:20,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:21,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:21,096 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:21,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:21,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2074536046, now seen corresponding path program 10 times [2021-10-28 23:39:21,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:21,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685467709] [2021-10-28 23:39:21,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:21,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:21,400 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:21,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:21,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685467709] [2021-10-28 23:39:21,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685467709] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:21,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540390684] [2021-10-28 23:39:21,401 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:39:21,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:21,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:21,410 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:21,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-28 23:39:22,395 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:39:22,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:22,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-28 23:39:22,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:23,232 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:23,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540390684] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:23,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:23,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-10-28 23:39:23,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595366661] [2021-10-28 23:39:23,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 23:39:23,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:23,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:39:23,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:39:23,234 INFO L87 Difference]: Start difference. First operand 238 states and 265 transitions. Second operand has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 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) [2021-10-28 23:39:23,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:23,651 INFO L93 Difference]: Finished difference Result 384 states and 435 transitions. [2021-10-28 23:39:23,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:39:23,651 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 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 118 [2021-10-28 23:39:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:23,653 INFO L225 Difference]: With dead ends: 384 [2021-10-28 23:39:23,653 INFO L226 Difference]: Without dead ends: 240 [2021-10-28 23:39:23,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 103 SyntacticMatches, 15 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:39:23,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-28 23:39:23,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2021-10-28 23:39:23,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 228 states have (on average 1.1578947368421053) internal successors, (264), 237 states have internal predecessors, (264), 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) [2021-10-28 23:39:23,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 264 transitions. [2021-10-28 23:39:23,665 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 264 transitions. Word has length 118 [2021-10-28 23:39:23,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:23,666 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 264 transitions. [2021-10-28 23:39:23,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 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) [2021-10-28 23:39:23,666 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 264 transitions. [2021-10-28 23:39:23,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-28 23:39:23,667 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:23,667 INFO L513 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:23,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-10-28 23:39:23,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:23,877 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:23,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:23,878 INFO L85 PathProgramCache]: Analyzing trace with hash 78415173, now seen corresponding path program 10 times [2021-10-28 23:39:23,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:23,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27024311] [2021-10-28 23:39:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:23,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:24,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:24,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27024311] [2021-10-28 23:39:24,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27024311] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:24,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963589473] [2021-10-28 23:39:24,107 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:39:24,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:24,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:24,108 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:24,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-28 23:39:25,259 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:39:25,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:25,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:39:25,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:25,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963589473] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:25,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:25,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-10-28 23:39:25,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357249220] [2021-10-28 23:39:25,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:39:25,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:25,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:39:25,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:39:25,555 INFO L87 Difference]: Start difference. First operand 238 states and 264 transitions. Second operand has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 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) [2021-10-28 23:39:25,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:25,669 INFO L93 Difference]: Finished difference Result 416 states and 468 transitions. [2021-10-28 23:39:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 23:39:25,669 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 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 122 [2021-10-28 23:39:25,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:25,670 INFO L225 Difference]: With dead ends: 416 [2021-10-28 23:39:25,671 INFO L226 Difference]: Without dead ends: 275 [2021-10-28 23:39:25,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:39:25,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-10-28 23:39:25,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 243. [2021-10-28 23:39:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 233 states have (on average 1.1587982832618027) internal successors, (270), 242 states have internal predecessors, (270), 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) [2021-10-28 23:39:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 270 transitions. [2021-10-28 23:39:25,683 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 270 transitions. Word has length 122 [2021-10-28 23:39:25,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:25,683 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 270 transitions. [2021-10-28 23:39:25,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 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) [2021-10-28 23:39:25,684 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 270 transitions. [2021-10-28 23:39:25,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-28 23:39:25,685 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:25,685 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:25,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:25,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:25,909 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:25,910 INFO L85 PathProgramCache]: Analyzing trace with hash -373433703, now seen corresponding path program 11 times [2021-10-28 23:39:25,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:25,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468065068] [2021-10-28 23:39:25,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:25,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:26,289 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:26,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:26,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468065068] [2021-10-28 23:39:26,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468065068] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:26,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159015190] [2021-10-28 23:39:26,290 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:39:26,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:26,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:26,293 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:26,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-28 23:39:27,770 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2021-10-28 23:39:27,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:27,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 23:39:27,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:28,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159015190] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:28,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:28,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-10-28 23:39:28,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280579103] [2021-10-28 23:39:28,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 23:39:28,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:28,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 23:39:28,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:39:28,641 INFO L87 Difference]: Start difference. First operand 243 states and 270 transitions. Second operand has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 states have internal predecessors, (125), 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) [2021-10-28 23:39:29,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:29,018 INFO L93 Difference]: Finished difference Result 389 states and 440 transitions. [2021-10-28 23:39:29,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 23:39:29,019 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 states have internal predecessors, (125), 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 123 [2021-10-28 23:39:29,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:29,020 INFO L225 Difference]: With dead ends: 389 [2021-10-28 23:39:29,020 INFO L226 Difference]: Without dead ends: 245 [2021-10-28 23:39:29,021 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 107 SyntacticMatches, 16 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:39:29,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-28 23:39:29,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 243. [2021-10-28 23:39:29,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 233 states have (on average 1.1545064377682404) internal successors, (269), 242 states have internal predecessors, (269), 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) [2021-10-28 23:39:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 269 transitions. [2021-10-28 23:39:29,033 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 269 transitions. Word has length 123 [2021-10-28 23:39:29,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:29,033 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 269 transitions. [2021-10-28 23:39:29,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 states have internal predecessors, (125), 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) [2021-10-28 23:39:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 269 transitions. [2021-10-28 23:39:29,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-10-28 23:39:29,035 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:29,035 INFO L513 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:29,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2021-10-28 23:39:29,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-10-28 23:39:29,236 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:29,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash -866620944, now seen corresponding path program 11 times [2021-10-28 23:39:29,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:29,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429930242] [2021-10-28 23:39:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:29,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:29,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:29,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429930242] [2021-10-28 23:39:29,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429930242] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:29,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760194756] [2021-10-28 23:39:29,528 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:39:29,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:29,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:29,529 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:29,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-28 23:39:30,681 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-10-28 23:39:30,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:30,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:39:30,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:30,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760194756] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:30,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:30,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-10-28 23:39:30,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410899646] [2021-10-28 23:39:30,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 23:39:30,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:30,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 23:39:30,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:39:30,991 INFO L87 Difference]: Start difference. First operand 243 states and 269 transitions. Second operand has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 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) [2021-10-28 23:39:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:31,124 INFO L93 Difference]: Finished difference Result 421 states and 473 transitions. [2021-10-28 23:39:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:39:31,125 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 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 127 [2021-10-28 23:39:31,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:31,126 INFO L225 Difference]: With dead ends: 421 [2021-10-28 23:39:31,126 INFO L226 Difference]: Without dead ends: 280 [2021-10-28 23:39:31,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:39:31,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-10-28 23:39:31,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 248. [2021-10-28 23:39:31,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 238 states have (on average 1.1554621848739495) internal successors, (275), 247 states have internal predecessors, (275), 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) [2021-10-28 23:39:31,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 275 transitions. [2021-10-28 23:39:31,140 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 275 transitions. Word has length 127 [2021-10-28 23:39:31,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:31,140 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 275 transitions. [2021-10-28 23:39:31,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 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) [2021-10-28 23:39:31,140 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 275 transitions. [2021-10-28 23:39:31,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-10-28 23:39:31,141 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:31,142 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:31,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:31,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:31,357 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:31,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:31,358 INFO L85 PathProgramCache]: Analyzing trace with hash 395217742, now seen corresponding path program 12 times [2021-10-28 23:39:31,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:31,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625043258] [2021-10-28 23:39:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:31,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:31,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:31,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625043258] [2021-10-28 23:39:31,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625043258] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:31,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34584791] [2021-10-28 23:39:31,698 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:39:31,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:31,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:31,700 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:31,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-28 23:39:34,012 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2021-10-28 23:39:34,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:34,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 23:39:34,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:34,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34584791] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:34,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:34,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-10-28 23:39:34,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869724647] [2021-10-28 23:39:34,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 23:39:34,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:34,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 23:39:34,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:39:34,956 INFO L87 Difference]: Start difference. First operand 248 states and 275 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 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) [2021-10-28 23:39:35,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:35,309 INFO L93 Difference]: Finished difference Result 394 states and 445 transitions. [2021-10-28 23:39:35,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:39:35,310 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 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 128 [2021-10-28 23:39:35,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:35,311 INFO L225 Difference]: With dead ends: 394 [2021-10-28 23:39:35,311 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 23:39:35,311 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 111 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:39:35,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 23:39:35,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2021-10-28 23:39:35,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 238 states have (on average 1.1512605042016806) internal successors, (274), 247 states have internal predecessors, (274), 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) [2021-10-28 23:39:35,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 274 transitions. [2021-10-28 23:39:35,324 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 274 transitions. Word has length 128 [2021-10-28 23:39:35,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:35,324 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 274 transitions. [2021-10-28 23:39:35,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 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) [2021-10-28 23:39:35,325 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 274 transitions. [2021-10-28 23:39:35,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-28 23:39:35,326 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:35,326 INFO L513 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:35,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:35,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:35,537 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:35,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:35,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1279768613, now seen corresponding path program 12 times [2021-10-28 23:39:35,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:35,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426869976] [2021-10-28 23:39:35,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:35,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:35,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:35,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426869976] [2021-10-28 23:39:35,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426869976] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:35,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689722703] [2021-10-28 23:39:35,818 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:39:35,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:35,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:35,821 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:35,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-28 23:39:38,212 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2021-10-28 23:39:38,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:38,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:39:38,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:38,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689722703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:38,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:38,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-10-28 23:39:38,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431314280] [2021-10-28 23:39:38,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 23:39:38,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:39:38,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:39:38,515 INFO L87 Difference]: Start difference. First operand 248 states and 274 transitions. Second operand has 23 states, 23 states have (on average 6.043478260869565) internal successors, (139), 23 states have internal predecessors, (139), 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) [2021-10-28 23:39:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:38,646 INFO L93 Difference]: Finished difference Result 426 states and 478 transitions. [2021-10-28 23:39:38,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:39:38,646 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.043478260869565) internal successors, (139), 23 states have internal predecessors, (139), 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 132 [2021-10-28 23:39:38,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:38,648 INFO L225 Difference]: With dead ends: 426 [2021-10-28 23:39:38,648 INFO L226 Difference]: Without dead ends: 285 [2021-10-28 23:39:38,648 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:39:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-10-28 23:39:38,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 253. [2021-10-28 23:39:38,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 243 states have (on average 1.1522633744855968) internal successors, (280), 252 states have internal predecessors, (280), 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) [2021-10-28 23:39:38,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 280 transitions. [2021-10-28 23:39:38,661 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 280 transitions. Word has length 132 [2021-10-28 23:39:38,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:38,661 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 280 transitions. [2021-10-28 23:39:38,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.043478260869565) internal successors, (139), 23 states have internal predecessors, (139), 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) [2021-10-28 23:39:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 280 transitions. [2021-10-28 23:39:38,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-10-28 23:39:38,679 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:38,680 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:38,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-10-28 23:39:38,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-10-28 23:39:38,885 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:38,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:38,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1786182727, now seen corresponding path program 13 times [2021-10-28 23:39:38,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:38,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053038053] [2021-10-28 23:39:38,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:38,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:39,216 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:39,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:39,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053038053] [2021-10-28 23:39:39,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053038053] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:39,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312322368] [2021-10-28 23:39:39,217 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:39:39,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:39,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:39,218 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:39,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-28 23:39:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:40,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-28 23:39:40,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:41,739 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:41,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312322368] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:41,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:41,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-10-28 23:39:41,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2843704] [2021-10-28 23:39:41,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 23:39:41,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:41,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 23:39:41,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:39:41,740 INFO L87 Difference]: Start difference. First operand 253 states and 280 transitions. Second operand has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 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) [2021-10-28 23:39:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:42,289 INFO L93 Difference]: Finished difference Result 399 states and 450 transitions. [2021-10-28 23:39:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:39:42,290 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 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 133 [2021-10-28 23:39:42,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:42,291 INFO L225 Difference]: With dead ends: 399 [2021-10-28 23:39:42,291 INFO L226 Difference]: Without dead ends: 255 [2021-10-28 23:39:42,291 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 115 SyntacticMatches, 18 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-10-28 23:39:42,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-28 23:39:42,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2021-10-28 23:39:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 243 states have (on average 1.1481481481481481) internal successors, (279), 252 states have internal predecessors, (279), 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) [2021-10-28 23:39:42,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 279 transitions. [2021-10-28 23:39:42,304 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 279 transitions. Word has length 133 [2021-10-28 23:39:42,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:42,304 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 279 transitions. [2021-10-28 23:39:42,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 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) [2021-10-28 23:39:42,304 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 279 transitions. [2021-10-28 23:39:42,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-10-28 23:39:42,305 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:42,306 INFO L513 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:42,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-10-28 23:39:42,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-10-28 23:39:42,529 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:42,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:42,529 INFO L85 PathProgramCache]: Analyzing trace with hash -567672048, now seen corresponding path program 13 times [2021-10-28 23:39:42,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:42,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542452341] [2021-10-28 23:39:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:42,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:42,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:42,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542452341] [2021-10-28 23:39:42,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542452341] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:42,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662513994] [2021-10-28 23:39:42,820 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:39:42,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:42,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:42,821 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:42,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-28 23:39:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:44,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:39:44,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:44,680 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:44,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662513994] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:44,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:44,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-10-28 23:39:44,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026777400] [2021-10-28 23:39:44,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 23:39:44,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:44,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 23:39:44,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:39:44,682 INFO L87 Difference]: Start difference. First operand 253 states and 279 transitions. Second operand has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 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) [2021-10-28 23:39:44,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:44,821 INFO L93 Difference]: Finished difference Result 431 states and 483 transitions. [2021-10-28 23:39:44,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 23:39:44,822 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 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 137 [2021-10-28 23:39:44,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:44,824 INFO L225 Difference]: With dead ends: 431 [2021-10-28 23:39:44,824 INFO L226 Difference]: Without dead ends: 290 [2021-10-28 23:39:44,824 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:39:44,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-10-28 23:39:44,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 258. [2021-10-28 23:39:44,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 248 states have (on average 1.1491935483870968) internal successors, (285), 257 states have internal predecessors, (285), 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) [2021-10-28 23:39:44,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 285 transitions. [2021-10-28 23:39:44,838 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 285 transitions. Word has length 137 [2021-10-28 23:39:44,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:44,839 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 285 transitions. [2021-10-28 23:39:44,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 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) [2021-10-28 23:39:44,839 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 285 transitions. [2021-10-28 23:39:44,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-10-28 23:39:44,840 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:44,840 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:44,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:45,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-10-28 23:39:45,065 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:45,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:45,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1072698926, now seen corresponding path program 14 times [2021-10-28 23:39:45,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:45,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435526491] [2021-10-28 23:39:45,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:45,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:45,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:45,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435526491] [2021-10-28 23:39:45,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435526491] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:45,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887684680] [2021-10-28 23:39:45,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:39:45,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:45,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:45,506 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:45,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-28 23:39:47,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:39:47,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:47,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-28 23:39:47,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:48,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887684680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:48,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:48,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-10-28 23:39:48,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570485427] [2021-10-28 23:39:48,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 23:39:48,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:48,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 23:39:48,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:39:48,304 INFO L87 Difference]: Start difference. First operand 258 states and 285 transitions. Second operand has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 states have internal predecessors, (140), 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) [2021-10-28 23:39:48,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:48,963 INFO L93 Difference]: Finished difference Result 404 states and 455 transitions. [2021-10-28 23:39:48,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 23:39:48,964 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 states have internal predecessors, (140), 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 138 [2021-10-28 23:39:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:48,966 INFO L225 Difference]: With dead ends: 404 [2021-10-28 23:39:48,966 INFO L226 Difference]: Without dead ends: 260 [2021-10-28 23:39:48,967 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 119 SyntacticMatches, 19 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:39:48,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-10-28 23:39:48,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2021-10-28 23:39:48,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 248 states have (on average 1.1451612903225807) internal successors, (284), 257 states have internal predecessors, (284), 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) [2021-10-28 23:39:48,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 284 transitions. [2021-10-28 23:39:48,983 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 284 transitions. Word has length 138 [2021-10-28 23:39:48,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:48,984 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 284 transitions. [2021-10-28 23:39:48,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 states have internal predecessors, (140), 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) [2021-10-28 23:39:48,984 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 284 transitions. [2021-10-28 23:39:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-10-28 23:39:48,986 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:48,986 INFO L513 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:49,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:49,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-10-28 23:39:49,209 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:49,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:49,210 INFO L85 PathProgramCache]: Analyzing trace with hash 19452677, now seen corresponding path program 14 times [2021-10-28 23:39:49,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:49,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928318676] [2021-10-28 23:39:49,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:49,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:49,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:49,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:49,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928318676] [2021-10-28 23:39:49,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928318676] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:49,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353033533] [2021-10-28 23:39:49,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:39:49,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:49,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:49,578 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:49,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-28 23:39:51,083 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:39:51,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:51,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:39:51,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:51,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353033533] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:51,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:51,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-10-28 23:39:51,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068380680] [2021-10-28 23:39:51,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 23:39:51,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:51,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 23:39:51,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:39:51,398 INFO L87 Difference]: Start difference. First operand 258 states and 284 transitions. Second operand has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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) [2021-10-28 23:39:51,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:51,524 INFO L93 Difference]: Finished difference Result 436 states and 488 transitions. [2021-10-28 23:39:51,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 23:39:51,524 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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 142 [2021-10-28 23:39:51,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:51,538 INFO L225 Difference]: With dead ends: 436 [2021-10-28 23:39:51,538 INFO L226 Difference]: Without dead ends: 295 [2021-10-28 23:39:51,538 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:39:51,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-10-28 23:39:51,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 263. [2021-10-28 23:39:51,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 253 states have (on average 1.1462450592885376) internal successors, (290), 262 states have internal predecessors, (290), 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) [2021-10-28 23:39:51,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 290 transitions. [2021-10-28 23:39:51,547 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 290 transitions. Word has length 142 [2021-10-28 23:39:51,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:51,547 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 290 transitions. [2021-10-28 23:39:51,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 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) [2021-10-28 23:39:51,547 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 290 transitions. [2021-10-28 23:39:51,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-28 23:39:51,548 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:51,548 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:51,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:51,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:51,749 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:51,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:51,749 INFO L85 PathProgramCache]: Analyzing trace with hash 2093696217, now seen corresponding path program 15 times [2021-10-28 23:39:51,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:51,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371590912] [2021-10-28 23:39:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:51,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:52,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:52,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371590912] [2021-10-28 23:39:52,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371590912] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:52,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648032112] [2021-10-28 23:39:52,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:39:52,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:52,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:52,165 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:52,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-28 23:39:54,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2021-10-28 23:39:54,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:39:54,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-28 23:39:54,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:55,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648032112] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:55,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:39:55,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-10-28 23:39:55,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907112461] [2021-10-28 23:39:55,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 23:39:55,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:39:55,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 23:39:55,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:39:55,593 INFO L87 Difference]: Start difference. First operand 263 states and 290 transitions. Second operand has 25 states, 25 states have (on average 5.8) internal successors, (145), 25 states have internal predecessors, (145), 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) [2021-10-28 23:39:56,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:56,114 INFO L93 Difference]: Finished difference Result 409 states and 460 transitions. [2021-10-28 23:39:56,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 23:39:56,115 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.8) internal successors, (145), 25 states have internal predecessors, (145), 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 143 [2021-10-28 23:39:56,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:56,116 INFO L225 Difference]: With dead ends: 409 [2021-10-28 23:39:56,116 INFO L226 Difference]: Without dead ends: 265 [2021-10-28 23:39:56,117 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 123 SyntacticMatches, 20 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:39:56,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-28 23:39:56,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2021-10-28 23:39:56,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 253 states have (on average 1.1422924901185771) internal successors, (289), 262 states have internal predecessors, (289), 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) [2021-10-28 23:39:56,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 289 transitions. [2021-10-28 23:39:56,130 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 289 transitions. Word has length 143 [2021-10-28 23:39:56,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:56,130 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 289 transitions. [2021-10-28 23:39:56,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.8) internal successors, (145), 25 states have internal predecessors, (145), 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) [2021-10-28 23:39:56,131 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 289 transitions. [2021-10-28 23:39:56,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-10-28 23:39:56,132 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:56,132 INFO L513 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:39:56,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2021-10-28 23:39:56,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:56,343 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:39:56,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:56,343 INFO L85 PathProgramCache]: Analyzing trace with hash -366562256, now seen corresponding path program 15 times [2021-10-28 23:39:56,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:39:56,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315599614] [2021-10-28 23:39:56,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:56,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:39:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:56,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:56,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:39:56,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315599614] [2021-10-28 23:39:56,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315599614] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:39:56,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140002681] [2021-10-28 23:39:56,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:39:56,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:39:56,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:39:56,657 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:39:56,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-28 23:40:08,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-10-28 23:40:08,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:40:08,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:40:08,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:09,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140002681] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:09,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:40:09,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-10-28 23:40:09,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528806375] [2021-10-28 23:40:09,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 23:40:09,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:09,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 23:40:09,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:40:09,106 INFO L87 Difference]: Start difference. First operand 263 states and 289 transitions. Second operand has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 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) [2021-10-28 23:40:09,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:09,226 INFO L93 Difference]: Finished difference Result 441 states and 493 transitions. [2021-10-28 23:40:09,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 23:40:09,239 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 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 147 [2021-10-28 23:40:09,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:09,241 INFO L225 Difference]: With dead ends: 441 [2021-10-28 23:40:09,241 INFO L226 Difference]: Without dead ends: 300 [2021-10-28 23:40:09,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:40:09,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-10-28 23:40:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 268. [2021-10-28 23:40:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 258 states have (on average 1.1434108527131783) internal successors, (295), 267 states have internal predecessors, (295), 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) [2021-10-28 23:40:09,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 295 transitions. [2021-10-28 23:40:09,259 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 295 transitions. Word has length 147 [2021-10-28 23:40:09,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:09,259 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 295 transitions. [2021-10-28 23:40:09,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 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) [2021-10-28 23:40:09,260 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 295 transitions. [2021-10-28 23:40:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-28 23:40:09,261 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:09,261 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:09,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:09,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-10-28 23:40:09,475 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:40:09,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:09,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1282832114, now seen corresponding path program 16 times [2021-10-28 23:40:09,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:09,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105579333] [2021-10-28 23:40:09,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:09,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:09,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:09,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:09,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105579333] [2021-10-28 23:40:09,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105579333] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:09,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874694867] [2021-10-28 23:40:09,983 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:40:09,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:09,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:09,985 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:10,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-28 23:40:11,761 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:40:11,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:40:11,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-28 23:40:11,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:13,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:13,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874694867] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:13,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:40:13,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-10-28 23:40:13,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300217774] [2021-10-28 23:40:13,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 23:40:13,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:13,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 23:40:13,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:40:13,126 INFO L87 Difference]: Start difference. First operand 268 states and 295 transitions. Second operand has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 26 states have internal predecessors, (150), 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) [2021-10-28 23:40:13,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:13,741 INFO L93 Difference]: Finished difference Result 414 states and 465 transitions. [2021-10-28 23:40:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 23:40:13,742 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 26 states have internal predecessors, (150), 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 148 [2021-10-28 23:40:13,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:13,743 INFO L225 Difference]: With dead ends: 414 [2021-10-28 23:40:13,743 INFO L226 Difference]: Without dead ends: 270 [2021-10-28 23:40:13,743 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 127 SyntacticMatches, 21 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-10-28 23:40:13,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-28 23:40:13,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 268. [2021-10-28 23:40:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 258 states have (on average 1.1395348837209303) internal successors, (294), 267 states have internal predecessors, (294), 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) [2021-10-28 23:40:13,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 294 transitions. [2021-10-28 23:40:13,753 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 294 transitions. Word has length 148 [2021-10-28 23:40:13,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:13,753 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 294 transitions. [2021-10-28 23:40:13,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 26 states have internal predecessors, (150), 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) [2021-10-28 23:40:13,754 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 294 transitions. [2021-10-28 23:40:13,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-10-28 23:40:13,755 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:13,755 INFO L513 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:13,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2021-10-28 23:40:13,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:13,981 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:40:13,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:13,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1393415653, now seen corresponding path program 16 times [2021-10-28 23:40:13,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:13,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787373706] [2021-10-28 23:40:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:13,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:14,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:14,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787373706] [2021-10-28 23:40:14,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787373706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:14,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729713089] [2021-10-28 23:40:14,324 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:40:14,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:14,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:14,325 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:14,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-28 23:40:16,055 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:40:16,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:40:16,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 23:40:16,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:16,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:16,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729713089] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:16,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:40:16,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-10-28 23:40:16,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872227192] [2021-10-28 23:40:16,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 23:40:16,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:16,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 23:40:16,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:40:16,415 INFO L87 Difference]: Start difference. First operand 268 states and 294 transitions. Second operand has 27 states, 27 states have (on average 5.888888888888889) internal successors, (159), 27 states have internal predecessors, (159), 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) [2021-10-28 23:40:16,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:16,559 INFO L93 Difference]: Finished difference Result 446 states and 498 transitions. [2021-10-28 23:40:16,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 23:40:16,560 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.888888888888889) internal successors, (159), 27 states have internal predecessors, (159), 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 152 [2021-10-28 23:40:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:16,561 INFO L225 Difference]: With dead ends: 446 [2021-10-28 23:40:16,561 INFO L226 Difference]: Without dead ends: 305 [2021-10-28 23:40:16,562 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:40:16,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-10-28 23:40:16,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 273. [2021-10-28 23:40:16,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 263 states have (on average 1.1406844106463878) internal successors, (300), 272 states have internal predecessors, (300), 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) [2021-10-28 23:40:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 300 transitions. [2021-10-28 23:40:16,575 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 300 transitions. Word has length 152 [2021-10-28 23:40:16,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:16,576 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 300 transitions. [2021-10-28 23:40:16,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.888888888888889) internal successors, (159), 27 states have internal predecessors, (159), 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) [2021-10-28 23:40:16,576 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 300 transitions. [2021-10-28 23:40:16,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-10-28 23:40:16,577 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:16,578 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:16,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:16,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:16,802 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:40:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:16,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1736875513, now seen corresponding path program 17 times [2021-10-28 23:40:16,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:16,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487613825] [2021-10-28 23:40:16,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:16,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:17,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:17,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487613825] [2021-10-28 23:40:17,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487613825] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:17,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337504464] [2021-10-28 23:40:17,332 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:40:17,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:17,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:17,337 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:17,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-28 23:40:19,207 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-10-28 23:40:19,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:40:19,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-28 23:40:19,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:20,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337504464] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:20,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:40:20,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-10-28 23:40:20,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354807898] [2021-10-28 23:40:20,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 23:40:20,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 23:40:20,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:40:20,771 INFO L87 Difference]: Start difference. First operand 273 states and 300 transitions. Second operand has 27 states, 27 states have (on average 5.7407407407407405) internal successors, (155), 27 states have internal predecessors, (155), 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) [2021-10-28 23:40:21,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:21,558 INFO L93 Difference]: Finished difference Result 419 states and 470 transitions. [2021-10-28 23:40:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 23:40:21,559 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.7407407407407405) internal successors, (155), 27 states have internal predecessors, (155), 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 153 [2021-10-28 23:40:21,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:21,560 INFO L225 Difference]: With dead ends: 419 [2021-10-28 23:40:21,560 INFO L226 Difference]: Without dead ends: 275 [2021-10-28 23:40:21,560 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 131 SyntacticMatches, 22 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:40:21,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-10-28 23:40:21,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2021-10-28 23:40:21,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 263 states have (on average 1.1368821292775666) internal successors, (299), 272 states have internal predecessors, (299), 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) [2021-10-28 23:40:21,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 299 transitions. [2021-10-28 23:40:21,574 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 299 transitions. Word has length 153 [2021-10-28 23:40:21,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:21,574 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 299 transitions. [2021-10-28 23:40:21,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.7407407407407405) internal successors, (155), 27 states have internal predecessors, (155), 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) [2021-10-28 23:40:21,574 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 299 transitions. [2021-10-28 23:40:21,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-10-28 23:40:21,576 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:21,576 INFO L513 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:21,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2021-10-28 23:40:21,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-10-28 23:40:21,789 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:40:21,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:21,789 INFO L85 PathProgramCache]: Analyzing trace with hash -414155440, now seen corresponding path program 17 times [2021-10-28 23:40:21,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:21,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976277699] [2021-10-28 23:40:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:21,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:22,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:22,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:22,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976277699] [2021-10-28 23:40:22,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976277699] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:22,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167967724] [2021-10-28 23:40:22,262 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:40:22,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:22,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:22,272 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:22,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-10-28 23:40:24,219 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2021-10-28 23:40:24,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:40:24,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 23:40:24,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:24,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167967724] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:24,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:40:24,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2021-10-28 23:40:24,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995519078] [2021-10-28 23:40:24,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-28 23:40:24,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:24,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-28 23:40:24,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:40:24,634 INFO L87 Difference]: Start difference. First operand 273 states and 299 transitions. Second operand has 28 states, 28 states have (on average 5.857142857142857) internal successors, (164), 28 states have internal predecessors, (164), 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) [2021-10-28 23:40:24,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:24,845 INFO L93 Difference]: Finished difference Result 451 states and 503 transitions. [2021-10-28 23:40:24,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 23:40:24,845 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.857142857142857) internal successors, (164), 28 states have internal predecessors, (164), 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 157 [2021-10-28 23:40:24,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:24,847 INFO L225 Difference]: With dead ends: 451 [2021-10-28 23:40:24,847 INFO L226 Difference]: Without dead ends: 310 [2021-10-28 23:40:24,848 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 23:40:24,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-10-28 23:40:24,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 278. [2021-10-28 23:40:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 268 states have (on average 1.1380597014925373) internal successors, (305), 277 states have internal predecessors, (305), 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) [2021-10-28 23:40:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 305 transitions. [2021-10-28 23:40:24,862 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 305 transitions. Word has length 157 [2021-10-28 23:40:24,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:24,863 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 305 transitions. [2021-10-28 23:40:24,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.857142857142857) internal successors, (164), 28 states have internal predecessors, (164), 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) [2021-10-28 23:40:24,863 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 305 transitions. [2021-10-28 23:40:24,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-10-28 23:40:24,864 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:24,864 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:24,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:25,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-10-28 23:40:25,077 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 23:40:25,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:25,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1536746478, now seen corresponding path program 18 times [2021-10-28 23:40:25,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:25,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083490963] [2021-10-28 23:40:25,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:25,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:40:25,197 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:40:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:40:25,337 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:40:25,337 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:40:25,338 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,341 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,342 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,344 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,345 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,347 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,347 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,347 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,347 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:40:25,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-10-28 23:40:25,351 INFO L731 BasicCegarLoop]: Path program histogram: [18, 17, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:25,356 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:40:25,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:40:25 BoogieIcfgContainer [2021-10-28 23:40:25,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:40:25,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:40:25,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:40:25,501 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:40:25,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:23" (3/4) ... [2021-10-28 23:40:25,505 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:40:25,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:40:25,507 INFO L168 Benchmark]: Toolchain (without parser) took 122908.25 ms. Allocated memory was 115.3 MB in the beginning and 700.4 MB in the end (delta: 585.1 MB). Free memory was 85.5 MB in the beginning and 129.5 MB in the end (delta: -44.0 MB). Peak memory consumption was 541.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:25,507 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 115.3 MB. Free memory was 69.1 MB in the beginning and 69.0 MB in the end (delta: 55.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:25,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.49 ms. Allocated memory is still 115.3 MB. Free memory was 85.2 MB in the beginning and 87.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:25,508 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.82 ms. Allocated memory is still 115.3 MB. Free memory was 87.8 MB in the beginning and 85.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:25,509 INFO L168 Benchmark]: Boogie Preprocessor took 64.65 ms. Allocated memory is still 115.3 MB. Free memory was 85.3 MB in the beginning and 83.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:25,509 INFO L168 Benchmark]: RCFGBuilder took 604.99 ms. Allocated memory is still 115.3 MB. Free memory was 83.6 MB in the beginning and 64.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:25,509 INFO L168 Benchmark]: TraceAbstraction took 121706.78 ms. Allocated memory was 115.3 MB in the beginning and 700.4 MB in the end (delta: 585.1 MB). Free memory was 64.0 MB in the beginning and 129.5 MB in the end (delta: -65.4 MB). Peak memory consumption was 521.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:25,509 INFO L168 Benchmark]: Witness Printer took 4.19 ms. Allocated memory is still 700.4 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:25,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 115.3 MB. Free memory was 69.1 MB in the beginning and 69.0 MB in the end (delta: 55.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 436.49 ms. Allocated memory is still 115.3 MB. Free memory was 85.2 MB in the beginning and 87.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.82 ms. Allocated memory is still 115.3 MB. Free memory was 87.8 MB in the beginning and 85.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.65 ms. Allocated memory is still 115.3 MB. Free memory was 85.3 MB in the beginning and 83.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 604.99 ms. Allocated memory is still 115.3 MB. Free memory was 83.6 MB in the beginning and 64.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 121706.78 ms. Allocated memory was 115.3 MB in the beginning and 700.4 MB in the end (delta: 585.1 MB). Free memory was 64.0 MB in the beginning and 129.5 MB in the end (delta: -65.4 MB). Peak memory consumption was 521.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.19 ms. Allocated memory is still 700.4 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 165, overapproximation of bitwiseAnd at line 166. Possible FailurePath: [L213] unsigned int a ; [L214] unsigned int ma = __VERIFIER_nondet_uint(); [L215] signed char ea = __VERIFIER_nondet_char(); [L216] unsigned int b ; [L217] unsigned int mb = __VERIFIER_nondet_uint(); [L218] signed char eb = __VERIFIER_nondet_char(); [L219] unsigned int r_mul ; [L220] unsigned int zero ; [L221] unsigned int one ; [L222] int sa ; [L223] int tmp ; [L224] int tmp___0 ; [L225] int tmp___1 ; [L226] int __retres16 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L230] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND FALSE !(m < 1U << 24U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L231] one = base2flt(1, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L232] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L233] b = base2flt(mb, eb) [L235] COND FALSE !(a < zero) [L238] COND TRUE a > zero [L239] tmp = 1 [L243] sa = tmp [L140] unsigned int res ; [L141] unsigned int ma ; [L142] unsigned int mb ; [L143] unsigned long long accu ; [L144] int ea ; [L145] int eb ; [L146] unsigned int tmp ; [L147] unsigned int __retres10 ; [L150] COND FALSE !(a < b) [L157] COND FALSE !(! b) [L163] ma = a & ((1U << 24U) - 1U) [L164] EXPR (int )(a >> 24U) - 128 [L164] ea = (int )(a >> 24U) - 128 [L165] ma = ma | (1U << 24U) [L166] mb = b & ((1U << 24U) - 1U) [L167] (int )(b >> 24U) - 128 - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 164]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 164]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 170]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 170]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 193]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 193]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 206]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 206]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 36 error locations. Started 1 CEGAR loops. OverallTime: 121.4s, OverallIterations: 68, TraceHistogramMax: 25, PathProgramHistogramMax: 18, EmptinessCheckTime: 0.0s, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 7743 SDtfs, 8281 SDslu, 35541 SDs, 0 SdLazy, 19454 SolverSat, 896 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5803 GetRequests, 4726 SyntacticMatches, 253 SemanticMatches, 824 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=67, InterpolantAutomatonStates: 883, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 67 MinimizatonAttempts, 1759 StatesRemovedByMinimization, 65 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 22.1s SatisfiabilityAnalysisTime, 33.0s InterpolantComputationTime, 10329 NumberOfCodeBlocks, 10229 NumberOfCodeBlocksAsserted, 387 NumberOfCheckSat, 10049 ConstructedInterpolants, 0 QuantifiedInterpolants, 40051 SizeOfPredicates, 117 NumberOfNonLiveVariables, 12799 ConjunctsInSsa, 1163 ConjunctsInUnsatCore, 122 InterpolantComputations, 22 PerfectInterpolantSequences, 302/45035 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:40:25,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e11c56b5-815a-45f4-9c43-0a5e8c9733e9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...