./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt --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 139ef67971e7ed714d59975d45ea043b5c6a1676 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/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-4e77c04 [2021-10-13 00:43:24,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:43:24,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:43:24,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:43:24,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:43:24,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:43:24,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:43:24,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:43:24,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:43:24,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:43:24,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:43:24,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:43:24,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:43:24,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:43:24,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:43:24,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:43:24,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:43:24,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:43:24,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:43:24,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:43:24,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:43:24,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:43:24,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:43:24,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:43:24,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:43:24,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:43:24,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:43:24,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:43:24,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:43:24,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:43:24,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:43:24,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:43:24,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:43:24,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:43:24,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:43:24,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:43:24,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:43:24,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:43:24,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:43:24,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:43:24,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:43:24,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 00:43:24,690 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:43:24,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:43:24,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:43:24,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:43:24,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:43:24,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:43:24,694 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:43:24,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:43:24,695 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:43:24,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:43:24,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:43:24,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:43:24,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:43:24,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:43:24,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:43:24,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:43:24,697 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 00:43:24,698 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:43:24,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:43:24,698 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:43:24,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:43:24,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:43:24,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:43:24,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:43:24,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:43:24,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:43:24,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:43:24,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:43:24,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:43:24,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:43:24,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:43:24,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:43:24,702 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_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 139ef67971e7ed714d59975d45ea043b5c6a1676 [2021-10-13 00:43:24,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:43:24,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:43:24,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:43:24,998 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:43:24,999 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:43:25,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c [2021-10-13 00:43:25,083 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data/82ffc2e46/93a432adb06449a785d433a9c6008840/FLAG41acde506 [2021-10-13 00:43:25,641 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:43:25,642 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c [2021-10-13 00:43:25,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data/82ffc2e46/93a432adb06449a785d433a9c6008840/FLAG41acde506 [2021-10-13 00:43:25,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/data/82ffc2e46/93a432adb06449a785d433a9c6008840 [2021-10-13 00:43:25,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:43:25,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:43:25,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:43:25,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:43:25,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:43:25,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:43:25" (1/1) ... [2021-10-13 00:43:25,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b65aa06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:25, skipping insertion in model container [2021-10-13 00:43:25,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:43:25" (1/1) ... [2021-10-13 00:43:26,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:43:26,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:43:26,358 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_854b011c-20dc-4483-b12b-b133c93669e3/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c[45007,45020] [2021-10-13 00:43:26,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:43:26,373 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:43:26,437 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_854b011c-20dc-4483-b12b-b133c93669e3/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c[45007,45020] [2021-10-13 00:43:26,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:43:26,457 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:43:26,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26 WrapperNode [2021-10-13 00:43:26,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:43:26,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:43:26,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:43:26,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:43:26,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:43:26,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:43:26,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:43:26,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:43:26,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:43:26,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:43:26,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:43:26,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:43:26,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (1/1) ... [2021-10-13 00:43:26,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:43:26,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:43:26,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:43:26,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:43:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:43:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:43:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:43:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:43:26,917 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 00:43:27,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false; [2021-10-13 00:43:27,685 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false; [2021-10-13 00:43:27,701 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:43:27,701 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-13 00:43:27,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:43:27 BoogieIcfgContainer [2021-10-13 00:43:27,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:43:27,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:43:27,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:43:27,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:43:27,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:43:25" (1/3) ... [2021-10-13 00:43:27,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abc6852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:43:27, skipping insertion in model container [2021-10-13 00:43:27,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:43:26" (2/3) ... [2021-10-13 00:43:27,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abc6852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:43:27, skipping insertion in model container [2021-10-13 00:43:27,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:43:27" (3/3) ... [2021-10-13 00:43:27,722 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a_alt.BV.c.cil.c [2021-10-13 00:43:27,729 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:43:27,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-10-13 00:43:27,803 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:43:27,813 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, mConcurrency=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 [2021-10-13 00:43:27,813 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-13 00:43:27,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 152 states have (on average 1.743421052631579) internal successors, (265), 164 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) [2021-10-13 00:43:27,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 00:43:27,866 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:27,867 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:27,867 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:27,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:27,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1872136602, now seen corresponding path program 1 times [2021-10-13 00:43:27,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:27,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200668218] [2021-10-13 00:43:27,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:27,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:28,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:28,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:28,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200668218] [2021-10-13 00:43:28,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200668218] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:28,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:28,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:43:28,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747696709] [2021-10-13 00:43:28,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:43:28,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:28,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:43:28,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:43:28,177 INFO L87 Difference]: Start difference. First operand has 165 states, 152 states have (on average 1.743421052631579) internal successors, (265), 164 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) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:28,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:28,242 INFO L93 Difference]: Finished difference Result 327 states and 526 transitions. [2021-10-13 00:43:28,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:43:28,244 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 00:43:28,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:28,261 INFO L225 Difference]: With dead ends: 327 [2021-10-13 00:43:28,262 INFO L226 Difference]: Without dead ends: 153 [2021-10-13 00:43:28,268 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:43:28,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-13 00:43:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-10-13 00:43:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 141 states have (on average 1.5673758865248226) internal successors, (221), 152 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:28,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 221 transitions. [2021-10-13 00:43:28,348 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 221 transitions. Word has length 20 [2021-10-13 00:43:28,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:28,349 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 221 transitions. [2021-10-13 00:43:28,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:28,351 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 221 transitions. [2021-10-13 00:43:28,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 00:43:28,352 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:28,353 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:28,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:43:28,354 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:28,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:28,357 INFO L82 PathProgramCache]: Analyzing trace with hash -122008104, now seen corresponding path program 1 times [2021-10-13 00:43:28,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:28,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014406015] [2021-10-13 00:43:28,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:28,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:28,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:28,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014406015] [2021-10-13 00:43:28,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014406015] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:28,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:28,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:28,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237791058] [2021-10-13 00:43:28,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:28,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:28,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:28,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:28,480 INFO L87 Difference]: Start difference. First operand 153 states and 221 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:28,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:28,694 INFO L93 Difference]: Finished difference Result 314 states and 455 transitions. [2021-10-13 00:43:28,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:28,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 00:43:28,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:28,700 INFO L225 Difference]: With dead ends: 314 [2021-10-13 00:43:28,701 INFO L226 Difference]: Without dead ends: 171 [2021-10-13 00:43:28,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:28,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-10-13 00:43:28,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-10-13 00:43:28,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 159 states have (on average 1.5471698113207548) internal successors, (246), 170 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:28,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2021-10-13 00:43:28,735 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 20 [2021-10-13 00:43:28,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:28,735 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2021-10-13 00:43:28,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2021-10-13 00:43:28,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 00:43:28,739 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:28,739 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:28,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:43:28,740 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:28,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:28,745 INFO L82 PathProgramCache]: Analyzing trace with hash 261327610, now seen corresponding path program 1 times [2021-10-13 00:43:28,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:28,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247606306] [2021-10-13 00:43:28,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:28,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:28,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:28,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247606306] [2021-10-13 00:43:28,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247606306] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:28,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:28,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:28,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209746662] [2021-10-13 00:43:28,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:28,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:28,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:28,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:28,853 INFO L87 Difference]: Start difference. First operand 171 states and 246 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2021-10-13 00:43:28,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:28,984 INFO L93 Difference]: Finished difference Result 342 states and 491 transitions. [2021-10-13 00:43:28,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:28,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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 [2021-10-13 00:43:28,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:28,986 INFO L225 Difference]: With dead ends: 342 [2021-10-13 00:43:28,986 INFO L226 Difference]: Without dead ends: 181 [2021-10-13 00:43:28,987 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-10-13 00:43:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2021-10-13 00:43:28,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 160 states have (on average 1.54375) internal successors, (247), 171 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 247 transitions. [2021-10-13 00:43:28,998 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 247 transitions. Word has length 21 [2021-10-13 00:43:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:28,999 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 247 transitions. [2021-10-13 00:43:28,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2021-10-13 00:43:28,999 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 247 transitions. [2021-10-13 00:43:29,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:43:29,000 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:29,000 INFO L512 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] [2021-10-13 00:43:29,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:43:29,001 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:29,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1606953904, now seen corresponding path program 1 times [2021-10-13 00:43:29,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:29,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877721941] [2021-10-13 00:43:29,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:29,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:29,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:29,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:29,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877721941] [2021-10-13 00:43:29,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877721941] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:29,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:29,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:29,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312785442] [2021-10-13 00:43:29,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:29,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:29,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:29,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:29,054 INFO L87 Difference]: Start difference. First operand 172 states and 247 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:29,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:29,193 INFO L93 Difference]: Finished difference Result 344 states and 493 transitions. [2021-10-13 00:43:29,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:29,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-10-13 00:43:29,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:29,195 INFO L225 Difference]: With dead ends: 344 [2021-10-13 00:43:29,195 INFO L226 Difference]: Without dead ends: 182 [2021-10-13 00:43:29,196 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-13 00:43:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 173. [2021-10-13 00:43:29,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 161 states have (on average 1.5403726708074534) internal successors, (248), 172 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:29,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 248 transitions. [2021-10-13 00:43:29,208 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 248 transitions. Word has length 22 [2021-10-13 00:43:29,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:29,209 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 248 transitions. [2021-10-13 00:43:29,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:29,209 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 248 transitions. [2021-10-13 00:43:29,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 00:43:29,210 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:29,210 INFO L512 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] [2021-10-13 00:43:29,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:43:29,211 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:29,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:29,212 INFO L82 PathProgramCache]: Analyzing trace with hash -376706219, now seen corresponding path program 1 times [2021-10-13 00:43:29,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:29,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511969370] [2021-10-13 00:43:29,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:29,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:29,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:29,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511969370] [2021-10-13 00:43:29,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511969370] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:29,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:29,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:29,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139161757] [2021-10-13 00:43:29,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:29,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:29,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:29,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:29,262 INFO L87 Difference]: Start difference. First operand 173 states and 248 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2021-10-13 00:43:29,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:29,415 INFO L93 Difference]: Finished difference Result 346 states and 495 transitions. [2021-10-13 00:43:29,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:29,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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 [2021-10-13 00:43:29,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:29,417 INFO L225 Difference]: With dead ends: 346 [2021-10-13 00:43:29,417 INFO L226 Difference]: Without dead ends: 183 [2021-10-13 00:43:29,418 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:29,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-13 00:43:29,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2021-10-13 00:43:29,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 162 states have (on average 1.537037037037037) internal successors, (249), 173 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:29,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 249 transitions. [2021-10-13 00:43:29,429 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 249 transitions. Word has length 23 [2021-10-13 00:43:29,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:29,430 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 249 transitions. [2021-10-13 00:43:29,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2021-10-13 00:43:29,430 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 249 transitions. [2021-10-13 00:43:29,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 00:43:29,432 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:29,432 INFO L512 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] [2021-10-13 00:43:29,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:43:29,432 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:29,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:29,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1876301173, now seen corresponding path program 1 times [2021-10-13 00:43:29,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:29,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82189292] [2021-10-13 00:43:29,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:29,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:29,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:29,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:29,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82189292] [2021-10-13 00:43:29,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82189292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:29,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:29,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:29,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308246443] [2021-10-13 00:43:29,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:29,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:29,486 INFO L87 Difference]: Start difference. First operand 174 states and 249 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:29,638 INFO L93 Difference]: Finished difference Result 348 states and 497 transitions. [2021-10-13 00:43:29,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:29,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-10-13 00:43:29,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:29,640 INFO L225 Difference]: With dead ends: 348 [2021-10-13 00:43:29,640 INFO L226 Difference]: Without dead ends: 184 [2021-10-13 00:43:29,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-10-13 00:43:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 175. [2021-10-13 00:43:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 163 states have (on average 1.5337423312883436) internal successors, (250), 174 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:29,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 250 transitions. [2021-10-13 00:43:29,653 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 250 transitions. Word has length 24 [2021-10-13 00:43:29,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:29,668 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 250 transitions. [2021-10-13 00:43:29,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:29,669 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 250 transitions. [2021-10-13 00:43:29,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 00:43:29,672 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:29,673 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:29,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:43:29,673 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:29,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:29,674 INFO L82 PathProgramCache]: Analyzing trace with hash 57535363, now seen corresponding path program 1 times [2021-10-13 00:43:29,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:29,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215473727] [2021-10-13 00:43:29,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:29,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:29,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:29,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215473727] [2021-10-13 00:43:29,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215473727] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:29,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:29,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:29,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512644344] [2021-10-13 00:43:29,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:29,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:29,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:29,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:29,764 INFO L87 Difference]: Start difference. First operand 175 states and 250 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:29,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:29,922 INFO L93 Difference]: Finished difference Result 381 states and 551 transitions. [2021-10-13 00:43:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:29,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-10-13 00:43:29,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:29,925 INFO L225 Difference]: With dead ends: 381 [2021-10-13 00:43:29,925 INFO L226 Difference]: Without dead ends: 216 [2021-10-13 00:43:29,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:29,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-10-13 00:43:29,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 200. [2021-10-13 00:43:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 188 states have (on average 1.5425531914893618) internal successors, (290), 199 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) [2021-10-13 00:43:29,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 290 transitions. [2021-10-13 00:43:29,940 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 290 transitions. Word has length 35 [2021-10-13 00:43:29,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:29,940 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 290 transitions. [2021-10-13 00:43:29,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:29,941 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 290 transitions. [2021-10-13 00:43:29,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 00:43:29,942 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:29,942 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:29,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:43:29,943 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:29,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:29,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1129130503, now seen corresponding path program 1 times [2021-10-13 00:43:29,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:29,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5173550] [2021-10-13 00:43:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:29,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:29,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:29,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:29,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5173550] [2021-10-13 00:43:29,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5173550] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:29,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:29,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:29,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699633726] [2021-10-13 00:43:29,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:29,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:29,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:29,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:29,995 INFO L87 Difference]: Start difference. First operand 200 states and 290 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:30,155 INFO L93 Difference]: Finished difference Result 418 states and 614 transitions. [2021-10-13 00:43:30,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:30,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-13 00:43:30,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:30,160 INFO L225 Difference]: With dead ends: 418 [2021-10-13 00:43:30,160 INFO L226 Difference]: Without dead ends: 228 [2021-10-13 00:43:30,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:30,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-10-13 00:43:30,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 212. [2021-10-13 00:43:30,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 200 states have (on average 1.565) internal successors, (313), 211 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:30,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 313 transitions. [2021-10-13 00:43:30,176 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 313 transitions. Word has length 36 [2021-10-13 00:43:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:30,176 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 313 transitions. [2021-10-13 00:43:30,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:30,177 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 313 transitions. [2021-10-13 00:43:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 00:43:30,179 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:30,179 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:30,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:43:30,179 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:30,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:30,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1135831245, now seen corresponding path program 1 times [2021-10-13 00:43:30,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:30,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404185974] [2021-10-13 00:43:30,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:30,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:30,196 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:43:30,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218790956] [2021-10-13 00:43:30,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:30,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:30,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:43:30,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:43:30,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:43:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:30,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:43:30,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:43:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:30,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:30,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404185974] [2021-10-13 00:43:30,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:43:30,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218790956] [2021-10-13 00:43:30,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218790956] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:30,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:30,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:30,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176346321] [2021-10-13 00:43:30,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:30,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:30,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:30,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:30,594 INFO L87 Difference]: Start difference. First operand 212 states and 313 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:30,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:30,822 INFO L93 Difference]: Finished difference Result 471 states and 704 transitions. [2021-10-13 00:43:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:30,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-13 00:43:30,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:30,826 INFO L225 Difference]: With dead ends: 471 [2021-10-13 00:43:30,827 INFO L226 Difference]: Without dead ends: 269 [2021-10-13 00:43:30,828 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:30,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-10-13 00:43:30,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 256. [2021-10-13 00:43:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 244 states have (on average 1.4918032786885247) internal successors, (364), 255 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 364 transitions. [2021-10-13 00:43:30,865 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 364 transitions. Word has length 46 [2021-10-13 00:43:30,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:30,866 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 364 transitions. [2021-10-13 00:43:30,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 364 transitions. [2021-10-13 00:43:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-13 00:43:30,867 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:30,867 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:30,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:43:31,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:31,081 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:31,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:31,082 INFO L82 PathProgramCache]: Analyzing trace with hash 455184635, now seen corresponding path program 1 times [2021-10-13 00:43:31,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:31,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708883993] [2021-10-13 00:43:31,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:31,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:31,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:31,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708883993] [2021-10-13 00:43:31,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708883993] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:31,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:31,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:31,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417976916] [2021-10-13 00:43:31,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:31,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:31,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:31,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:31,165 INFO L87 Difference]: Start difference. First operand 256 states and 364 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:31,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:31,345 INFO L93 Difference]: Finished difference Result 323 states and 454 transitions. [2021-10-13 00:43:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:31,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-10-13 00:43:31,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:31,348 INFO L225 Difference]: With dead ends: 323 [2021-10-13 00:43:31,348 INFO L226 Difference]: Without dead ends: 304 [2021-10-13 00:43:31,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:31,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-10-13 00:43:31,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-10-13 00:43:31,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 292 states have (on average 1.4863013698630136) internal successors, (434), 303 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:31,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 434 transitions. [2021-10-13 00:43:31,374 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 434 transitions. Word has length 48 [2021-10-13 00:43:31,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:31,374 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 434 transitions. [2021-10-13 00:43:31,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:31,375 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 434 transitions. [2021-10-13 00:43:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-13 00:43:31,376 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:31,376 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:31,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:43:31,377 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:31,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:31,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1725100399, now seen corresponding path program 1 times [2021-10-13 00:43:31,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:31,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676920191] [2021-10-13 00:43:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:31,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:31,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:31,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:31,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676920191] [2021-10-13 00:43:31,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676920191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:31,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:31,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:43:31,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352389231] [2021-10-13 00:43:31,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:43:31,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:31,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:43:31,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:43:31,462 INFO L87 Difference]: Start difference. First operand 304 states and 434 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:31,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:31,623 INFO L93 Difference]: Finished difference Result 629 states and 891 transitions. [2021-10-13 00:43:31,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:43:31,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-10-13 00:43:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:31,626 INFO L225 Difference]: With dead ends: 629 [2021-10-13 00:43:31,627 INFO L226 Difference]: Without dead ends: 322 [2021-10-13 00:43:31,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:43:31,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-10-13 00:43:31,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2021-10-13 00:43:31,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 310 states have (on average 1.467741935483871) internal successors, (455), 321 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:31,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 455 transitions. [2021-10-13 00:43:31,646 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 455 transitions. Word has length 49 [2021-10-13 00:43:31,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:31,648 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 455 transitions. [2021-10-13 00:43:31,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:31,651 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 455 transitions. [2021-10-13 00:43:31,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-13 00:43:31,653 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:31,654 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:31,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 00:43:31,657 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:31,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:31,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1041558250, now seen corresponding path program 1 times [2021-10-13 00:43:31,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:31,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117149671] [2021-10-13 00:43:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:31,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:31,678 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:43:31,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224261914] [2021-10-13 00:43:31,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:31,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:31,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:43:31,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:43:31,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:43:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:31,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:43:31,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:43:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:31,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:31,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117149671] [2021-10-13 00:43:31,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:43:31,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224261914] [2021-10-13 00:43:31,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224261914] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:31,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:31,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:43:31,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677040647] [2021-10-13 00:43:31,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:43:31,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:31,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:43:31,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:43:31,992 INFO L87 Difference]: Start difference. First operand 322 states and 455 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:32,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:32,173 INFO L93 Difference]: Finished difference Result 659 states and 935 transitions. [2021-10-13 00:43:32,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:43:32,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-10-13 00:43:32,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:32,176 INFO L225 Difference]: With dead ends: 659 [2021-10-13 00:43:32,176 INFO L226 Difference]: Without dead ends: 347 [2021-10-13 00:43:32,177 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:43:32,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-10-13 00:43:32,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 343. [2021-10-13 00:43:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 331 states have (on average 1.4531722054380665) internal successors, (481), 342 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:32,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 481 transitions. [2021-10-13 00:43:32,194 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 481 transitions. Word has length 62 [2021-10-13 00:43:32,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:32,194 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 481 transitions. [2021-10-13 00:43:32,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 481 transitions. [2021-10-13 00:43:32,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-13 00:43:32,196 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:32,196 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:32,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:43:32,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:32,415 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:32,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:32,416 INFO L82 PathProgramCache]: Analyzing trace with hash 436186050, now seen corresponding path program 1 times [2021-10-13 00:43:32,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:32,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198851686] [2021-10-13 00:43:32,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:32,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:32,493 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:32,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:32,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198851686] [2021-10-13 00:43:32,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198851686] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:32,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:32,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:43:32,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598614445] [2021-10-13 00:43:32,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:43:32,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:32,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:43:32,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:43:32,497 INFO L87 Difference]: Start difference. First operand 343 states and 481 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:32,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:32,532 INFO L93 Difference]: Finished difference Result 700 states and 978 transitions. [2021-10-13 00:43:32,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:43:32,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-10-13 00:43:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:32,535 INFO L225 Difference]: With dead ends: 700 [2021-10-13 00:43:32,536 INFO L226 Difference]: Without dead ends: 367 [2021-10-13 00:43:32,536 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:43:32,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2021-10-13 00:43:32,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2021-10-13 00:43:32,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 355 states have (on average 1.4366197183098592) internal successors, (510), 366 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:32,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 510 transitions. [2021-10-13 00:43:32,557 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 510 transitions. Word has length 83 [2021-10-13 00:43:32,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:32,559 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 510 transitions. [2021-10-13 00:43:32,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:32,559 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 510 transitions. [2021-10-13 00:43:32,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-13 00:43:32,560 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:32,561 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:32,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 00:43:32,561 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:32,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:32,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1809393404, now seen corresponding path program 1 times [2021-10-13 00:43:32,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:32,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942246095] [2021-10-13 00:43:32,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:32,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:32,583 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:43:32,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1360614430] [2021-10-13 00:43:32,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:32,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:32,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:43:32,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:43:32,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:43:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:32,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:43:32,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:43:33,028 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 00:43:33,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:33,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942246095] [2021-10-13 00:43:33,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 00:43:33,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360614430] [2021-10-13 00:43:33,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360614430] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:43:33,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:43:33,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:43:33,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240895129] [2021-10-13 00:43:33,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:43:33,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:33,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:43:33,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:43:33,031 INFO L87 Difference]: Start difference. First operand 367 states and 510 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:33,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:33,090 INFO L93 Difference]: Finished difference Result 1047 states and 1463 transitions. [2021-10-13 00:43:33,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:43:33,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-10-13 00:43:33,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:33,098 INFO L225 Difference]: With dead ends: 1047 [2021-10-13 00:43:33,099 INFO L226 Difference]: Without dead ends: 690 [2021-10-13 00:43:33,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:43:33,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-10-13 00:43:33,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 652. [2021-10-13 00:43:33,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 640 states have (on average 1.45625) internal successors, (932), 651 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 932 transitions. [2021-10-13 00:43:33,139 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 932 transitions. Word has length 83 [2021-10-13 00:43:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:33,141 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 932 transitions. [2021-10-13 00:43:33,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:33,141 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 932 transitions. [2021-10-13 00:43:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-13 00:43:33,150 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:33,150 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:43:33,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:43:33,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:33,375 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-10-13 00:43:33,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:33,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1809395326, now seen corresponding path program 1 times [2021-10-13 00:43:33,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:33,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256263537] [2021-10-13 00:43:33,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:33,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:33,399 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:43:33,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743701404] [2021-10-13 00:43:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:33,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:33,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:43:33,403 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:43:33,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 00:43:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:43:33,573 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:43:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:43:33,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:43:33,786 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:43:33,819 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:43:33,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:43:34,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-13 00:43:34,030 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:43:34,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:43:34 BoogieIcfgContainer [2021-10-13 00:43:34,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:43:34,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:43:34,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:43:34,156 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:43:34,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:43:27" (3/4) ... [2021-10-13 00:43:34,160 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:43:34,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:43:34,162 INFO L168 Benchmark]: Toolchain (without parser) took 8182.23 ms. Allocated memory was 109.1 MB in the beginning and 176.2 MB in the end (delta: 67.1 MB). Free memory was 75.8 MB in the beginning and 143.4 MB in the end (delta: -67.6 MB). Peak memory consumption was 981.9 kB. Max. memory is 16.1 GB. [2021-10-13 00:43:34,162 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:43:34,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.56 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 75.8 MB in the beginning and 103.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:43:34,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.76 ms. Allocated memory is still 134.2 MB. Free memory was 103.2 MB in the beginning and 100.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:43:34,164 INFO L168 Benchmark]: Boogie Preprocessor took 41.48 ms. Allocated memory is still 134.2 MB. Free memory was 100.3 MB in the beginning and 98.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:43:34,164 INFO L168 Benchmark]: RCFGBuilder took 1085.22 ms. Allocated memory is still 134.2 MB. Free memory was 98.2 MB in the beginning and 105.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:43:34,165 INFO L168 Benchmark]: TraceAbstraction took 6445.00 ms. Allocated memory was 134.2 MB in the beginning and 176.2 MB in the end (delta: 41.9 MB). Free memory was 105.9 MB in the beginning and 143.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 101.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:43:34,165 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 176.2 MB. Free memory is still 143.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:43:34,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 109.1 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.56 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 75.8 MB in the beginning and 103.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 118.76 ms. Allocated memory is still 134.2 MB. Free memory was 103.2 MB in the beginning and 100.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.48 ms. Allocated memory is still 134.2 MB. Free memory was 100.3 MB in the beginning and 98.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1085.22 ms. Allocated memory is still 134.2 MB. Free memory was 98.2 MB in the beginning and 105.9 MB in the end (delta: -7.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6445.00 ms. Allocated memory was 134.2 MB in the beginning and 176.2 MB in the end (delta: 41.9 MB). Free memory was 105.9 MB in the beginning and 143.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 101.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.76 ms. Allocated memory is still 176.2 MB. Free memory is still 143.4 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 548]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 93. Possible FailurePath: [L692] int s ; [L693] int tmp ; [L697] s = 8464 [L17] int s__info_callback = __VERIFIER_nondet_int(); [L18] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L19] int s__state ; [L20] int s__new_session ; [L21] int s__server ; [L22] int s__version = __VERIFIER_nondet_int(); [L23] int s__type ; [L24] int s__init_num ; [L25] int s__hit = __VERIFIER_nondet_int(); [L26] int s__rwstate ; [L27] int s__init_buf___0 ; [L28] int s__debug = __VERIFIER_nondet_int(); [L29] int s__shutdown ; [L30] int s__cert = __VERIFIER_nondet_int(); [L31] int s__options = __VERIFIER_nondet_int(); [L32] int s__verify_mode = __VERIFIER_nondet_int(); [L33] int s__session__peer = __VERIFIER_nondet_int(); [L34] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int(); [L35] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L36] int s__ctx__stats__sess_accept_renegotiate ; [L37] int s__ctx__stats__sess_accept ; [L38] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__cert_request ; [L40] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L41] int s__s3__tmp__use_rsa_tmp ; [L42] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L43] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L44] int s__s3__tmp__next_state___0 ; [L45] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int(); [L46] int s__session__cipher ; [L47] int buf = __VERIFIER_nondet_int(); [L48] unsigned long l ; [L49] unsigned long Time ; [L50] unsigned long tmp = __VERIFIER_nondet_ulong(); [L51] int cb ; [L52] long num1 ; [L53] int ret ; [L54] int new_state ; [L55] int state ; [L56] int skip ; [L57] int got_new_session ; [L58] int tmp___1 = __VERIFIER_nondet_int(); [L59] int tmp___2 = __VERIFIER_nondet_int(); [L60] int tmp___3 ; [L61] int tmp___4 ; [L62] int tmp___5 ; [L63] int tmp___6 ; [L64] int tmp___7 ; [L65] long tmp___8 = __VERIFIER_nondet_long(); [L66] int tmp___9 ; [L67] int tmp___10 ; [L68] int blastFlag ; [L69] int ag_X ; [L70] int ag_Y = __VERIFIER_nondet_int(); [L71] int ag_Z ; [L72] int __retres70 ; [L3] COND FALSE !(!cond) [L76] s__state = initial_state [L77] blastFlag = 0 [L78] Time = tmp [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] got_new_session = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L92] s__in_handshake = s__in_handshake + 1 [L93] COND FALSE !(tmp___1 & 12288) [L102] COND FALSE !(s__cert == 0) [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND TRUE s__state == 8464 [L294] s__shutdown = 0 [L295] ret = __VERIFIER_nondet_int() [L296] COND TRUE blastFlag == 0 [L297] blastFlag = 1 [L301] COND FALSE !(ret <= 0) [L306] got_new_session = 1 [L307] s__state = 8496 [L308] s__init_num = 0 [L641] COND FALSE !(! s__s3__tmp__reuse_message) [L670] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND TRUE s__state == 8496 [L312] ret = __VERIFIER_nondet_int() [L313] COND TRUE blastFlag == 1 [L314] blastFlag = 2 [L318] COND FALSE !(ret <= 0) [L323] COND TRUE \read(s__hit) [L324] s__state = 8656 [L328] s__init_num = 0 [L641] COND FALSE !(! s__s3__tmp__reuse_message) [L670] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND FALSE !(s__state == 8496) [L148] COND FALSE !(s__state == 8497) [L151] COND FALSE !(s__state == 8512) [L154] COND FALSE !(s__state == 8513) [L157] COND FALSE !(s__state == 8528) [L160] COND FALSE !(s__state == 8529) [L163] COND FALSE !(s__state == 8544) [L166] COND FALSE !(s__state == 8545) [L169] COND FALSE !(s__state == 8560) [L172] COND FALSE !(s__state == 8561) [L175] COND FALSE !(s__state == 8448) [L178] COND FALSE !(s__state == 8576) [L181] COND FALSE !(s__state == 8577) [L184] COND FALSE !(s__state == 8592) [L187] COND FALSE !(s__state == 8593) [L190] COND FALSE !(s__state == 8608) [L193] COND FALSE !(s__state == 8609) [L196] COND FALSE !(s__state == 8640) [L199] COND FALSE !(s__state == 8641) [L202] COND TRUE s__state == 8656 [L529] s__session__cipher = s__s3__tmp__new_cipher [L530] tmp___9 = __VERIFIER_nondet_int() [L531] COND FALSE !(! tmp___9) [L537] ret = __VERIFIER_nondet_int() [L538] COND TRUE blastFlag == 2 [L539] blastFlag = 3 [L543] COND FALSE !(ret <= 0) [L548] ag_X * ag_Y - UnprovableResult [Line: 269]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 269]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 271]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 271]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 370]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 370]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 588]: 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, 165 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 6227.8ms, OverallIterations: 15, TraceHistogramMax: 3, EmptinessCheckTime: 60.7ms, AutomataDifference: 2144.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2514 SDtfs, 4359 SDslu, 880 SDs, 0 SdLazy, 1073 SolverSat, 360 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1170.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 115.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=652occurred in iteration=14, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 320.3ms AutomataMinimizationTime, 14 MinimizatonAttempts, 123 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 113.9ms SsaConstructionTime, 358.9ms SatisfiabilityAnalysisTime, 1358.2ms InterpolantComputationTime, 655 NumberOfCodeBlocks, 655 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 1319 SizeOfPredicates, 3 NumberOfNonLiveVariables, 555 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 90/90 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 [2021-10-13 00:43:34,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_854b011c-20dc-4483-b12b-b133c93669e3/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...