./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2a.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_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg --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 c44b803d03190a527c42abe4e4f18fc4439f4401508a837fe6b16bb2e579da62 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/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 09:31:52,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:31:52,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:31:52,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:31:52,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:31:52,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:31:52,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:31:52,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:31:52,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:31:52,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:31:52,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:31:52,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:31:52,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:31:52,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:31:52,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:31:52,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:31:52,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:31:52,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:31:52,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:31:52,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:31:52,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:31:52,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:31:52,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:31:52,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:31:52,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:31:52,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:31:52,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:31:52,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:31:52,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:31:52,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:31:52,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:31:52,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:31:52,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:31:52,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:31:52,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:31:52,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:31:52,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:31:52,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:31:52,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:31:52,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:31:52,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:31:52,517 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-28 09:31:52,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:31:52,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:31:52,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:31:52,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:31:52,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:31:52,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:31:52,571 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:31:52,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:31:52,572 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:31:52,572 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:31:52,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:31:52,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:31:52,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:31:52,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:31:52,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:31:52,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:31:52,574 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 09:31:52,574 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:31:52,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:31:52,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:31:52,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:31:52,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:31:52,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:31:52,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:31:52,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:31:52,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:31:52,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:31:52,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:31:52,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:31:52,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:31:52,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:31:52,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:31:52,577 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_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c44b803d03190a527c42abe4e4f18fc4439f4401508a837fe6b16bb2e579da62 [2021-10-28 09:31:52,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:31:52,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:31:52,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:31:52,853 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:31:52,856 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:31:52,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2021-10-28 09:31:52,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/data/8c6a18376/4d7ab24aea3340d8b1d06935e8d3dfb2/FLAG19da259c0 [2021-10-28 09:31:53,489 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:31:53,490 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2021-10-28 09:31:53,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/data/8c6a18376/4d7ab24aea3340d8b1d06935e8d3dfb2/FLAG19da259c0 [2021-10-28 09:31:53,818 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/data/8c6a18376/4d7ab24aea3340d8b1d06935e8d3dfb2 [2021-10-28 09:31:53,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:31:53,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:31:53,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:31:53,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:31:53,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:31:53,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:31:53" (1/1) ... [2021-10-28 09:31:53,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ca1957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:53, skipping insertion in model container [2021-10-28 09:31:53,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:31:53" (1/1) ... [2021-10-28 09:31:53,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:31:53,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:31:54,032 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_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[450,463] [2021-10-28 09:31:54,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:31:54,082 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:31:54,092 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_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[450,463] [2021-10-28 09:31:54,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:31:54,136 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:31:54,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54 WrapperNode [2021-10-28 09:31:54,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:31:54,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:31:54,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:31:54,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:31:54,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:31:54,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:31:54,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:31:54,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:31:54,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:31:54,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:31:54,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:31:54,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:31:54,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (1/1) ... [2021-10-28 09:31:54,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:31:54,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:31:54,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:31:54,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:31:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:31:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:31:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:31:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:31:54,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:31:54,916 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-28 09:31:54,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:31:54 BoogieIcfgContainer [2021-10-28 09:31:54,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:31:54,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:31:54,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:31:54,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:31:54,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:31:53" (1/3) ... [2021-10-28 09:31:54,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@caf5703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:31:54, skipping insertion in model container [2021-10-28 09:31:54,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:31:54" (2/3) ... [2021-10-28 09:31:54,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@caf5703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:31:54, skipping insertion in model container [2021-10-28 09:31:54,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:31:54" (3/3) ... [2021-10-28 09:31:54,940 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2021-10-28 09:31:54,948 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:31:54,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2021-10-28 09:31:54,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:31:55,004 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 09:31:55,004 INFO L340 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2021-10-28 09:31:55,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 112 states have (on average 1.7767857142857142) internal successors, (199), 150 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 09:31:55,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:31:55,055 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:55,055 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:55,056 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:55,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:55,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-10-28 09:31:55,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:55,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139615527] [2021-10-28 09:31:55,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:55,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:55,246 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 09:31:55,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:55,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139615527] [2021-10-28 09:31:55,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139615527] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:55,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:55,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:31:55,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115372095] [2021-10-28 09:31:55,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:31:55,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:55,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:31:55,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:31:55,270 INFO L87 Difference]: Start difference. First operand has 151 states, 112 states have (on average 1.7767857142857142) internal successors, (199), 150 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) 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 09:31:55,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:55,298 INFO L93 Difference]: Finished difference Result 280 states and 370 transitions. [2021-10-28 09:31:55,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:31:55,300 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 09:31:55,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:55,310 INFO L225 Difference]: With dead ends: 280 [2021-10-28 09:31:55,310 INFO L226 Difference]: Without dead ends: 131 [2021-10-28 09:31:55,313 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 09:31:55,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-28 09:31:55,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-28 09:31:55,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 97 states have (on average 1.597938144329897) internal successors, (155), 130 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 09:31:55,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 155 transitions. [2021-10-28 09:31:55,355 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 155 transitions. Word has length 7 [2021-10-28 09:31:55,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:55,355 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 155 transitions. [2021-10-28 09:31:55,355 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 09:31:55,355 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 155 transitions. [2021-10-28 09:31:55,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:31:55,356 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:55,356 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:55,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:31:55,357 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:55,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:55,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-10-28 09:31:55,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:55,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089718715] [2021-10-28 09:31:55,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:55,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:55,409 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 09:31:55,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:55,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089718715] [2021-10-28 09:31:55,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089718715] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:55,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:55,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:31:55,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882524652] [2021-10-28 09:31:55,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:31:55,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:55,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:31:55,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:31:55,414 INFO L87 Difference]: Start difference. First operand 131 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 09:31:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:55,561 INFO L93 Difference]: Finished difference Result 259 states and 304 transitions. [2021-10-28 09:31:55,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:31:55,565 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 09:31:55,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:55,567 INFO L225 Difference]: With dead ends: 259 [2021-10-28 09:31:55,567 INFO L226 Difference]: Without dead ends: 145 [2021-10-28 09:31:55,568 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 09:31:55,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-28 09:31:55,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2021-10-28 09:31:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 142 states have internal predecessors, (168), 0 states have call successors, (0), 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 09:31:55,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2021-10-28 09:31:55,593 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 7 [2021-10-28 09:31:55,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:55,594 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2021-10-28 09:31:55,594 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 09:31:55,594 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2021-10-28 09:31:55,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:31:55,595 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:55,595 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:55,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:31:55,595 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:55,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:55,596 INFO L85 PathProgramCache]: Analyzing trace with hash -866677448, now seen corresponding path program 1 times [2021-10-28 09:31:55,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:55,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38706685] [2021-10-28 09:31:55,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:55,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:55,651 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 09:31:55,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:55,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38706685] [2021-10-28 09:31:55,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38706685] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:55,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:55,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:31:55,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693168100] [2021-10-28 09:31:55,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:31:55,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:55,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:31:55,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:31:55,654 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 09:31:55,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:55,791 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2021-10-28 09:31:55,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:31:55,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-10-28 09:31:55,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:55,794 INFO L225 Difference]: With dead ends: 220 [2021-10-28 09:31:55,794 INFO L226 Difference]: Without dead ends: 213 [2021-10-28 09:31:55,795 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 09:31:55,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-28 09:31:55,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 144. [2021-10-28 09:31:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 115 states have (on average 1.4782608695652173) internal successors, (170), 143 states have internal predecessors, (170), 0 states have call successors, (0), 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 09:31:55,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2021-10-28 09:31:55,852 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 10 [2021-10-28 09:31:55,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:55,853 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2021-10-28 09:31:55,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 09:31:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2021-10-28 09:31:55,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 09:31:55,854 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:55,854 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:55,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:31:55,855 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:55,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:55,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1097196978, now seen corresponding path program 1 times [2021-10-28 09:31:55,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:55,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167455444] [2021-10-28 09:31:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:55,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:55,916 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 09:31:55,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:55,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167455444] [2021-10-28 09:31:55,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167455444] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:55,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:55,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:31:55,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996369902] [2021-10-28 09:31:55,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:31:55,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:55,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:31:55,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:31:55,920 INFO L87 Difference]: Start difference. First operand 144 states and 170 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 09:31:56,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:56,012 INFO L93 Difference]: Finished difference Result 212 states and 244 transitions. [2021-10-28 09:31:56,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:31:56,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 09:31:56,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:56,016 INFO L225 Difference]: With dead ends: 212 [2021-10-28 09:31:56,016 INFO L226 Difference]: Without dead ends: 207 [2021-10-28 09:31:56,019 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 09:31:56,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-28 09:31:56,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 136. [2021-10-28 09:31:56,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 111 states have (on average 1.4594594594594594) internal successors, (162), 135 states have internal predecessors, (162), 0 states have call successors, (0), 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 09:31:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2021-10-28 09:31:56,043 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 11 [2021-10-28 09:31:56,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:56,043 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2021-10-28 09:31:56,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 09:31:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2021-10-28 09:31:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 09:31:56,045 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:56,046 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:56,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:31:56,047 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:56,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:56,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1234080256, now seen corresponding path program 1 times [2021-10-28 09:31:56,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:56,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131662312] [2021-10-28 09:31:56,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:56,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:56,136 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 09:31:56,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:56,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131662312] [2021-10-28 09:31:56,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131662312] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:56,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:56,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:31:56,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117407606] [2021-10-28 09:31:56,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:31:56,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:56,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:31:56,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:31:56,142 INFO L87 Difference]: Start difference. First operand 136 states and 162 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 09:31:56,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:56,224 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2021-10-28 09:31:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:31:56,226 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 09:31:56,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:56,227 INFO L225 Difference]: With dead ends: 208 [2021-10-28 09:31:56,227 INFO L226 Difference]: Without dead ends: 206 [2021-10-28 09:31:56,228 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 09:31:56,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-10-28 09:31:56,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 138. [2021-10-28 09:31:56,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 114 states have (on average 1.4385964912280702) internal successors, (164), 137 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 09:31:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 164 transitions. [2021-10-28 09:31:56,253 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 164 transitions. Word has length 12 [2021-10-28 09:31:56,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:56,254 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 164 transitions. [2021-10-28 09:31:56,254 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 09:31:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 164 transitions. [2021-10-28 09:31:56,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 09:31:56,257 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:56,257 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:56,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:31:56,258 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:56,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:56,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1595344206, now seen corresponding path program 1 times [2021-10-28 09:31:56,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:56,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863555101] [2021-10-28 09:31:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:56,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:56,312 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 09:31:56,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:56,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863555101] [2021-10-28 09:31:56,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863555101] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:56,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:56,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:31:56,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938668063] [2021-10-28 09:31:56,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:31:56,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:56,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:31:56,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:31:56,315 INFO L87 Difference]: Start difference. First operand 138 states and 164 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 09:31:56,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:56,395 INFO L93 Difference]: Finished difference Result 329 states and 382 transitions. [2021-10-28 09:31:56,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:31:56,396 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 09:31:56,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:56,403 INFO L225 Difference]: With dead ends: 329 [2021-10-28 09:31:56,403 INFO L226 Difference]: Without dead ends: 219 [2021-10-28 09:31:56,407 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 09:31:56,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-28 09:31:56,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 143. [2021-10-28 09:31:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 119 states have (on average 1.4285714285714286) internal successors, (170), 142 states have internal predecessors, (170), 0 states have call successors, (0), 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 09:31:56,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2021-10-28 09:31:56,417 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 12 [2021-10-28 09:31:56,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:56,418 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2021-10-28 09:31:56,418 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 09:31:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2021-10-28 09:31:56,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:31:56,422 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:56,422 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:56,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:31:56,422 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:56,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:56,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2056836231, now seen corresponding path program 1 times [2021-10-28 09:31:56,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:56,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900790487] [2021-10-28 09:31:56,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:56,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:56,506 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 09:31:56,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:56,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900790487] [2021-10-28 09:31:56,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900790487] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:56,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:56,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:31:56,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145123310] [2021-10-28 09:31:56,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:31:56,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:31:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:31:56,516 INFO L87 Difference]: Start difference. First operand 143 states and 170 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 09:31:56,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:56,596 INFO L93 Difference]: Finished difference Result 217 states and 253 transitions. [2021-10-28 09:31:56,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:31:56,597 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 09:31:56,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:56,598 INFO L225 Difference]: With dead ends: 217 [2021-10-28 09:31:56,599 INFO L226 Difference]: Without dead ends: 215 [2021-10-28 09:31:56,599 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 09:31:56,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-28 09:31:56,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 146. [2021-10-28 09:31:56,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 123 states have (on average 1.4146341463414633) internal successors, (174), 145 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 09:31:56,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 174 transitions. [2021-10-28 09:31:56,610 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 174 transitions. Word has length 13 [2021-10-28 09:31:56,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:56,610 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 174 transitions. [2021-10-28 09:31:56,610 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 09:31:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 174 transitions. [2021-10-28 09:31:56,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:31:56,613 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:56,613 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:56,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:31:56,613 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:56,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:56,614 INFO L85 PathProgramCache]: Analyzing trace with hash 465285246, now seen corresponding path program 1 times [2021-10-28 09:31:56,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:56,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454417816] [2021-10-28 09:31:56,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:56,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:56,682 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 09:31:56,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:56,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454417816] [2021-10-28 09:31:56,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454417816] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:31:56,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311220802] [2021-10-28 09:31:56,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:56,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:31:56,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:31:56,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:31:56,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:31:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:56,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:31:56,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:31:56,865 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 09:31:56,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311220802] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:56,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:31:56,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 09:31:56,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128345172] [2021-10-28 09:31:56,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:31:56,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:56,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:31:56,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:31:56,868 INFO L87 Difference]: Start difference. First operand 146 states and 174 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 09:31:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:56,950 INFO L93 Difference]: Finished difference Result 281 states and 324 transitions. [2021-10-28 09:31:56,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:31:56,951 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 09:31:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:56,953 INFO L225 Difference]: With dead ends: 281 [2021-10-28 09:31:56,953 INFO L226 Difference]: Without dead ends: 278 [2021-10-28 09:31:56,953 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 09:31:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-28 09:31:56,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 133. [2021-10-28 09:31:56,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 113 states have (on average 1.407079646017699) internal successors, (159), 132 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 09:31:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 159 transitions. [2021-10-28 09:31:56,962 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 159 transitions. Word has length 13 [2021-10-28 09:31:56,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:56,963 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 159 transitions. [2021-10-28 09:31:56,963 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 09:31:56,963 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 159 transitions. [2021-10-28 09:31:56,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 09:31:56,964 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:56,964 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:56,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:31:57,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-28 09:31:57,185 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:57,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:57,185 INFO L85 PathProgramCache]: Analyzing trace with hash -793504392, now seen corresponding path program 1 times [2021-10-28 09:31:57,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:57,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741846993] [2021-10-28 09:31:57,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:57,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:57,288 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 09:31:57,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:57,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741846993] [2021-10-28 09:31:57,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741846993] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:57,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:57,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:31:57,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316619948] [2021-10-28 09:31:57,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:31:57,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:57,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:31:57,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:31:57,300 INFO L87 Difference]: Start difference. First operand 133 states and 159 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 09:31:57,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:57,519 INFO L93 Difference]: Finished difference Result 293 states and 344 transitions. [2021-10-28 09:31:57,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:31:57,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 09:31:57,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:57,521 INFO L225 Difference]: With dead ends: 293 [2021-10-28 09:31:57,521 INFO L226 Difference]: Without dead ends: 219 [2021-10-28 09:31:57,523 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:31:57,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-28 09:31:57,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 177. [2021-10-28 09:31:57,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 157 states have (on average 1.375796178343949) internal successors, (216), 176 states have internal predecessors, (216), 0 states have call successors, (0), 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 09:31:57,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 216 transitions. [2021-10-28 09:31:57,539 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 216 transitions. Word has length 15 [2021-10-28 09:31:57,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:57,540 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 216 transitions. [2021-10-28 09:31:57,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 09:31:57,540 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 216 transitions. [2021-10-28 09:31:57,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 09:31:57,541 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:57,541 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:57,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:31:57,541 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:57,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:57,542 INFO L85 PathProgramCache]: Analyzing trace with hash -47207071, now seen corresponding path program 1 times [2021-10-28 09:31:57,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:57,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216337490] [2021-10-28 09:31:57,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:57,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:57,584 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 09:31:57,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:57,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216337490] [2021-10-28 09:31:57,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216337490] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:57,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:57,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:31:57,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697873689] [2021-10-28 09:31:57,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:31:57,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:57,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:31:57,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:31:57,587 INFO L87 Difference]: Start difference. First operand 177 states and 216 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 09:31:57,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:57,656 INFO L93 Difference]: Finished difference Result 284 states and 338 transitions. [2021-10-28 09:31:57,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:31:57,657 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 09:31:57,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:57,660 INFO L225 Difference]: With dead ends: 284 [2021-10-28 09:31:57,660 INFO L226 Difference]: Without dead ends: 282 [2021-10-28 09:31:57,660 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 09:31:57,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-28 09:31:57,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 182. [2021-10-28 09:31:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 163 states have (on average 1.3496932515337423) internal successors, (220), 181 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 09:31:57,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 220 transitions. [2021-10-28 09:31:57,677 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 220 transitions. Word has length 15 [2021-10-28 09:31:57,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:57,677 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 220 transitions. [2021-10-28 09:31:57,678 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 09:31:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 220 transitions. [2021-10-28 09:31:57,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 09:31:57,678 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:57,678 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:31:57,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:31:57,679 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:57,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:57,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1418335763, now seen corresponding path program 1 times [2021-10-28 09:31:57,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:57,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578302191] [2021-10-28 09:31:57,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:57,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:57,703 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 09:31:57,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:57,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578302191] [2021-10-28 09:31:57,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578302191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:57,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:57,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:31:57,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640341658] [2021-10-28 09:31:57,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:31:57,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:57,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:31:57,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:31:57,706 INFO L87 Difference]: Start difference. First operand 182 states and 220 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 09:31:57,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:57,780 INFO L93 Difference]: Finished difference Result 373 states and 439 transitions. [2021-10-28 09:31:57,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:31:57,781 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 09:31:57,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:57,783 INFO L225 Difference]: With dead ends: 373 [2021-10-28 09:31:57,783 INFO L226 Difference]: Without dead ends: 370 [2021-10-28 09:31:57,783 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 09:31:57,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-10-28 09:31:57,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 167. [2021-10-28 09:31:57,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 151 states have (on average 1.3509933774834437) internal successors, (204), 166 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 09:31:57,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 204 transitions. [2021-10-28 09:31:57,797 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 204 transitions. Word has length 15 [2021-10-28 09:31:57,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:57,798 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 204 transitions. [2021-10-28 09:31:57,798 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 09:31:57,798 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 204 transitions. [2021-10-28 09:31:57,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 09:31:57,799 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:57,799 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] [2021-10-28 09:31:57,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 09:31:57,799 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:57,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:57,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1101296279, now seen corresponding path program 1 times [2021-10-28 09:31:57,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:57,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138240433] [2021-10-28 09:31:57,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:57,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:57,932 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 09:31:57,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:57,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138240433] [2021-10-28 09:31:57,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138240433] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:57,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:57,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:31:57,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205747375] [2021-10-28 09:31:57,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:31:57,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:57,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:31:57,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:31:57,938 INFO L87 Difference]: Start difference. First operand 167 states and 204 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 09:31:58,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:58,116 INFO L93 Difference]: Finished difference Result 286 states and 340 transitions. [2021-10-28 09:31:58,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:31:58,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2021-10-28 09:31:58,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:58,118 INFO L225 Difference]: With dead ends: 286 [2021-10-28 09:31:58,118 INFO L226 Difference]: Without dead ends: 285 [2021-10-28 09:31:58,119 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:31:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-10-28 09:31:58,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 183. [2021-10-28 09:31:58,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 167 states have (on average 1.3353293413173652) internal successors, (223), 182 states have internal predecessors, (223), 0 states have call successors, (0), 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 09:31:58,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 223 transitions. [2021-10-28 09:31:58,135 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 223 transitions. Word has length 21 [2021-10-28 09:31:58,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:58,136 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 223 transitions. [2021-10-28 09:31:58,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 09:31:58,136 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 223 transitions. [2021-10-28 09:31:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:31:58,137 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:58,137 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] [2021-10-28 09:31:58,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:31:58,137 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:58,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:58,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1783760243, now seen corresponding path program 1 times [2021-10-28 09:31:58,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:58,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238571903] [2021-10-28 09:31:58,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:58,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:58,334 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 09:31:58,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:58,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238571903] [2021-10-28 09:31:58,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238571903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:58,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:58,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:31:58,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508796909] [2021-10-28 09:31:58,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:31:58,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:58,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:31:58,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:31:58,337 INFO L87 Difference]: Start difference. First operand 183 states and 223 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:58,741 INFO L93 Difference]: Finished difference Result 338 states and 391 transitions. [2021-10-28 09:31:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:31:58,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-10-28 09:31:58,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:58,744 INFO L225 Difference]: With dead ends: 338 [2021-10-28 09:31:58,744 INFO L226 Difference]: Without dead ends: 335 [2021-10-28 09:31:58,744 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:31:58,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-10-28 09:31:58,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 209. [2021-10-28 09:31:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 193 states have (on average 1.3212435233160622) internal successors, (255), 208 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 09:31:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 255 transitions. [2021-10-28 09:31:58,762 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 255 transitions. Word has length 23 [2021-10-28 09:31:58,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:58,763 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 255 transitions. [2021-10-28 09:31:58,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:58,763 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 255 transitions. [2021-10-28 09:31:58,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:31:58,764 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:58,764 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] [2021-10-28 09:31:58,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 09:31:58,765 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:58,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:58,765 INFO L85 PathProgramCache]: Analyzing trace with hash 685438419, now seen corresponding path program 1 times [2021-10-28 09:31:58,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:58,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334583814] [2021-10-28 09:31:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:58,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:58,857 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 09:31:58,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:58,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334583814] [2021-10-28 09:31:58,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334583814] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:58,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:58,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:31:58,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915767751] [2021-10-28 09:31:58,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:31:58,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:58,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:31:58,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:31:58,860 INFO L87 Difference]: Start difference. First operand 209 states and 255 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:58,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:58,945 INFO L93 Difference]: Finished difference Result 249 states and 289 transitions. [2021-10-28 09:31:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:31:58,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-10-28 09:31:58,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:58,947 INFO L225 Difference]: With dead ends: 249 [2021-10-28 09:31:58,947 INFO L226 Difference]: Without dead ends: 181 [2021-10-28 09:31:58,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:31:58,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-10-28 09:31:58,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 148. [2021-10-28 09:31:58,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 132 states have (on average 1.356060606060606) internal successors, (179), 147 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 09:31:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 179 transitions. [2021-10-28 09:31:58,961 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 179 transitions. Word has length 23 [2021-10-28 09:31:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:58,961 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 179 transitions. [2021-10-28 09:31:58,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 179 transitions. [2021-10-28 09:31:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:31:58,962 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:58,962 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] [2021-10-28 09:31:58,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 09:31:58,963 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:58,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1121574605, now seen corresponding path program 1 times [2021-10-28 09:31:58,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:58,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335921949] [2021-10-28 09:31:58,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:58,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:59,012 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 09:31:59,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:59,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335921949] [2021-10-28 09:31:59,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335921949] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:59,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:59,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:31:59,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596600048] [2021-10-28 09:31:59,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:31:59,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:59,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:31:59,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:31:59,014 INFO L87 Difference]: Start difference. First operand 148 states and 179 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:59,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:59,125 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2021-10-28 09:31:59,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:31:59,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-10-28 09:31:59,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:59,127 INFO L225 Difference]: With dead ends: 208 [2021-10-28 09:31:59,127 INFO L226 Difference]: Without dead ends: 180 [2021-10-28 09:31:59,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:31:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-28 09:31:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 154. [2021-10-28 09:31:59,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 138 states have (on average 1.3405797101449275) internal successors, (185), 153 states have internal predecessors, (185), 0 states have call successors, (0), 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 09:31:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 185 transitions. [2021-10-28 09:31:59,142 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 185 transitions. Word has length 23 [2021-10-28 09:31:59,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:59,142 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 185 transitions. [2021-10-28 09:31:59,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:59,142 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2021-10-28 09:31:59,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:31:59,143 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:59,143 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] [2021-10-28 09:31:59,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 09:31:59,144 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:59,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:59,144 INFO L85 PathProgramCache]: Analyzing trace with hash -322402664, now seen corresponding path program 1 times [2021-10-28 09:31:59,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:59,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531646515] [2021-10-28 09:31:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:59,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:59,239 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 09:31:59,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:59,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531646515] [2021-10-28 09:31:59,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531646515] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:59,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:59,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:31:59,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503459211] [2021-10-28 09:31:59,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:31:59,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:59,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:31:59,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:31:59,241 INFO L87 Difference]: Start difference. First operand 154 states and 185 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:59,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:59,422 INFO L93 Difference]: Finished difference Result 261 states and 296 transitions. [2021-10-28 09:31:59,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:31:59,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-10-28 09:31:59,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:59,424 INFO L225 Difference]: With dead ends: 261 [2021-10-28 09:31:59,424 INFO L226 Difference]: Without dead ends: 229 [2021-10-28 09:31:59,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:31:59,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-10-28 09:31:59,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 157. [2021-10-28 09:31:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 141 states have (on average 1.3333333333333333) internal successors, (188), 156 states have internal predecessors, (188), 0 states have call successors, (0), 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 09:31:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2021-10-28 09:31:59,438 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 23 [2021-10-28 09:31:59,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:59,439 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2021-10-28 09:31:59,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2021-10-28 09:31:59,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:31:59,440 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:59,440 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] [2021-10-28 09:31:59,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 09:31:59,440 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:59,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:59,441 INFO L85 PathProgramCache]: Analyzing trace with hash -322343082, now seen corresponding path program 1 times [2021-10-28 09:31:59,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:59,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243153735] [2021-10-28 09:31:59,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:59,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:59,528 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 09:31:59,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:59,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243153735] [2021-10-28 09:31:59,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243153735] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:59,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:59,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:31:59,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964605779] [2021-10-28 09:31:59,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:31:59,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:59,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:31:59,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:31:59,531 INFO L87 Difference]: Start difference. First operand 157 states and 188 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:31:59,761 INFO L93 Difference]: Finished difference Result 425 states and 485 transitions. [2021-10-28 09:31:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:31:59,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-10-28 09:31:59,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:31:59,764 INFO L225 Difference]: With dead ends: 425 [2021-10-28 09:31:59,764 INFO L226 Difference]: Without dead ends: 424 [2021-10-28 09:31:59,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:31:59,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-10-28 09:31:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 183. [2021-10-28 09:31:59,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 167 states have (on average 1.3293413173652695) internal successors, (222), 182 states have internal predecessors, (222), 0 states have call successors, (0), 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 09:31:59,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 222 transitions. [2021-10-28 09:31:59,788 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 222 transitions. Word has length 23 [2021-10-28 09:31:59,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:31:59,789 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 222 transitions. [2021-10-28 09:31:59,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:31:59,789 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 222 transitions. [2021-10-28 09:31:59,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:31:59,790 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:31:59,790 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] [2021-10-28 09:31:59,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 09:31:59,791 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:31:59,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:31:59,791 INFO L85 PathProgramCache]: Analyzing trace with hash -146326323, now seen corresponding path program 1 times [2021-10-28 09:31:59,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:31:59,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630726868] [2021-10-28 09:31:59,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:31:59,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:31:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:31:59,884 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 09:31:59,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:31:59,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630726868] [2021-10-28 09:31:59,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630726868] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:31:59,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:31:59,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:31:59,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445167745] [2021-10-28 09:31:59,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:31:59,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:31:59,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:31:59,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:31:59,887 INFO L87 Difference]: Start difference. First operand 183 states and 222 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:32:00,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:32:00,123 INFO L93 Difference]: Finished difference Result 465 states and 521 transitions. [2021-10-28 09:32:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:32:00,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-10-28 09:32:00,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:32:00,127 INFO L225 Difference]: With dead ends: 465 [2021-10-28 09:32:00,127 INFO L226 Difference]: Without dead ends: 464 [2021-10-28 09:32:00,128 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:32:00,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-10-28 09:32:00,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 239. [2021-10-28 09:32:00,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 223 states have (on average 1.3318385650224216) internal successors, (297), 238 states have internal predecessors, (297), 0 states have call successors, (0), 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 09:32:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 297 transitions. [2021-10-28 09:32:00,151 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 297 transitions. Word has length 25 [2021-10-28 09:32:00,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:32:00,152 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 297 transitions. [2021-10-28 09:32:00,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:32:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 297 transitions. [2021-10-28 09:32:00,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:32:00,153 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:32:00,153 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] [2021-10-28 09:32:00,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 09:32:00,153 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:32:00,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:32:00,154 INFO L85 PathProgramCache]: Analyzing trace with hash -591306022, now seen corresponding path program 1 times [2021-10-28 09:32:00,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:32:00,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253543552] [2021-10-28 09:32:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:32:00,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:32:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:32:00,258 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 09:32:00,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:32:00,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253543552] [2021-10-28 09:32:00,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253543552] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:32:00,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:32:00,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:32:00,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942258888] [2021-10-28 09:32:00,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:32:00,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:32:00,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:32:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:32:00,261 INFO L87 Difference]: Start difference. First operand 239 states and 297 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:32:00,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:32:00,630 INFO L93 Difference]: Finished difference Result 498 states and 555 transitions. [2021-10-28 09:32:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:32:00,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-10-28 09:32:00,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:32:00,633 INFO L225 Difference]: With dead ends: 498 [2021-10-28 09:32:00,633 INFO L226 Difference]: Without dead ends: 431 [2021-10-28 09:32:00,634 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:32:00,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-10-28 09:32:00,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 236. [2021-10-28 09:32:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 220 states have (on average 1.3181818181818181) internal successors, (290), 235 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 09:32:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 290 transitions. [2021-10-28 09:32:00,657 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 290 transitions. Word has length 25 [2021-10-28 09:32:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:32:00,657 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 290 transitions. [2021-10-28 09:32:00,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:32:00,658 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 290 transitions. [2021-10-28 09:32:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:32:00,658 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:32:00,658 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] [2021-10-28 09:32:00,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 09:32:00,659 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:32:00,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:32:00,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1716642380, now seen corresponding path program 1 times [2021-10-28 09:32:00,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:32:00,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639637521] [2021-10-28 09:32:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:32:00,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:32:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:32:00,828 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 09:32:00,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:32:00,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639637521] [2021-10-28 09:32:00,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639637521] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:32:00,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:32:00,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:32:00,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884213736] [2021-10-28 09:32:00,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:32:00,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:32:00,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:32:00,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:32:00,830 INFO L87 Difference]: Start difference. First operand 236 states and 290 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:32:01,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:32:01,198 INFO L93 Difference]: Finished difference Result 320 states and 381 transitions. [2021-10-28 09:32:01,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:32:01,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-10-28 09:32:01,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:32:01,200 INFO L225 Difference]: With dead ends: 320 [2021-10-28 09:32:01,201 INFO L226 Difference]: Without dead ends: 319 [2021-10-28 09:32:01,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:32:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-10-28 09:32:01,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 236. [2021-10-28 09:32:01,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 220 states have (on average 1.3136363636363637) internal successors, (289), 235 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 09:32:01,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 289 transitions. [2021-10-28 09:32:01,225 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 289 transitions. Word has length 25 [2021-10-28 09:32:01,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:32:01,225 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 289 transitions. [2021-10-28 09:32:01,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:32:01,226 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 289 transitions. [2021-10-28 09:32:01,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 09:32:01,226 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:32:01,227 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] [2021-10-28 09:32:01,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 09:32:01,227 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:32:01,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:32:01,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1114335921, now seen corresponding path program 1 times [2021-10-28 09:32:01,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:32:01,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884328186] [2021-10-28 09:32:01,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:32:01,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:32:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:32:01,329 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 09:32:01,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:32:01,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884328186] [2021-10-28 09:32:01,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884328186] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:32:01,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:32:01,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:32:01,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875476651] [2021-10-28 09:32:01,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:32:01,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:32:01,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:32:01,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:32:01,331 INFO L87 Difference]: Start difference. First operand 236 states and 289 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 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 09:32:01,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:32:01,437 INFO L93 Difference]: Finished difference Result 264 states and 317 transitions. [2021-10-28 09:32:01,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:32:01,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2021-10-28 09:32:01,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:32:01,439 INFO L225 Difference]: With dead ends: 264 [2021-10-28 09:32:01,439 INFO L226 Difference]: Without dead ends: 218 [2021-10-28 09:32:01,440 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:32:01,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-10-28 09:32:01,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2021-10-28 09:32:01,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 200 states have (on average 1.325) internal successors, (265), 215 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 09:32:01,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 265 transitions. [2021-10-28 09:32:01,458 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 265 transitions. Word has length 27 [2021-10-28 09:32:01,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:32:01,459 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 265 transitions. [2021-10-28 09:32:01,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 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 09:32:01,459 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 265 transitions. [2021-10-28 09:32:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 09:32:01,460 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:32:01,460 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] [2021-10-28 09:32:01,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 09:32:01,460 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-28 09:32:01,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:32:01,461 INFO L85 PathProgramCache]: Analyzing trace with hash 350457026, now seen corresponding path program 1 times [2021-10-28 09:32:01,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:32:01,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217032880] [2021-10-28 09:32:01,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:32:01,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:32:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:32:01,477 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:32:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:32:01,512 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:32:01,512 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:32:01,513 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,517 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:32:01,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-28 09:32:01,526 INFO L731 BasicCegarLoop]: Path program histogram: [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 09:32:01,529 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:32:01,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:32:01 BoogieIcfgContainer [2021-10-28 09:32:01,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:32:01,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:32:01,566 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:32:01,566 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:32:01,567 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:31:54" (3/4) ... [2021-10-28 09:32:01,570 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:32:01,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:32:01,571 INFO L168 Benchmark]: Toolchain (without parser) took 7748.28 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 72.1 MB in the beginning and 70.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:32:01,571 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 63.0 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:32:01,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.16 ms. Allocated memory is still 107.0 MB. Free memory was 71.8 MB in the beginning and 79.9 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:32:01,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.60 ms. Allocated memory is still 107.0 MB. Free memory was 79.9 MB in the beginning and 77.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:32:01,573 INFO L168 Benchmark]: Boogie Preprocessor took 39.57 ms. Allocated memory is still 107.0 MB. Free memory was 77.4 MB in the beginning and 75.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:32:01,573 INFO L168 Benchmark]: RCFGBuilder took 686.15 ms. Allocated memory is still 107.0 MB. Free memory was 75.7 MB in the beginning and 55.9 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:32:01,574 INFO L168 Benchmark]: TraceAbstraction took 6645.91 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 55.5 MB in the beginning and 70.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:32:01,574 INFO L168 Benchmark]: Witness Printer took 3.86 ms. Allocated memory is still 134.2 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:32:01,576 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 63.0 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.16 ms. Allocated memory is still 107.0 MB. Free memory was 71.8 MB in the beginning and 79.9 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.60 ms. Allocated memory is still 107.0 MB. Free memory was 79.9 MB in the beginning and 77.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.57 ms. Allocated memory is still 107.0 MB. Free memory was 77.4 MB in the beginning and 75.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 686.15 ms. Allocated memory is still 107.0 MB. Free memory was 75.7 MB in the beginning and 55.9 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6645.91 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 55.5 MB in the beginning and 70.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.86 ms. Allocated memory is still 134.2 MB. Free memory is still 70.0 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: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 103, overapproximation of bitwiseAnd at line 104. Possible FailurePath: [L219] unsigned int a ; [L220] unsigned int ma = __VERIFIER_nondet_uint(); [L221] signed char ea = __VERIFIER_nondet_char(); [L222] unsigned int b ; [L223] unsigned int mb = __VERIFIER_nondet_uint(); [L224] signed char eb = __VERIFIER_nondet_char(); [L225] unsigned int r_add1 ; [L226] unsigned int r_add2 ; [L227] unsigned int zero ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int __retres14 ; [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND TRUE ! m [L23] __retres4 = 0U [L73] return (__retres4); [L234] zero = base2flt(0, 0) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND TRUE m >= 1U << 25U [L57] COND TRUE e >= 127 [L58] __retres4 = 4294967295U [L73] return (__retres4); [L235] a = base2flt(ma, ea) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND FALSE !(m >= 1U << 25U) [L69] m = m & ~ (1U << 24U) [L70] EXPR e + 128 [L70] res = m | ((unsigned int )(e + 128) << 24U) [L71] __retres4 = res [L73] return (__retres4); [L236] b = base2flt(mb, eb) [L77] unsigned int res ; [L78] unsigned int ma ; [L79] unsigned int mb ; [L80] unsigned int delta ; [L81] int ea ; [L82] int eb ; [L83] unsigned int tmp ; [L84] unsigned int __retres10 ; [L87] COND FALSE !(a < b) [L94] COND FALSE !(! b) [L101] ma = a & ((1U << 24U) - 1U) [L102] EXPR (int )(a >> 24U) - 128 [L102] ea = (int )(a >> 24U) - 128 [L103] ma = ma | (1U << 24U) [L104] mb = b & ((1U << 24U) - 1U) [L105] (int )(b >> 24U) - 128 - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: 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, 151 locations, 38 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 22, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3485 SDtfs, 4951 SDslu, 8063 SDs, 0 SdLazy, 1849 SolverSat, 266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=18, InterpolantAutomatonStates: 126, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 1950 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 359 ConstructedInterpolants, 0 QuantifiedInterpolants, 1469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 22 InterpolantComputations, 21 PerfectInterpolantSequences, 2/4 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 09:32:01,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e8b2f2-d656-49ca-bef4-c4bfcd28c9fc/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...