./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY --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 31f10835cae624a55ab7ddafebce266aec4d698d20be3ba19631eaedd9136bff --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:25:41,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:25:41,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:25:42,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:25:42,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:25:42,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:25:42,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:25:42,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:25:42,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:25:42,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:25:42,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:25:42,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:25:42,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:25:42,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:25:42,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:25:42,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:25:42,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:25:42,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:25:42,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:25:42,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:25:42,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:25:42,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:25:42,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:25:42,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:25:42,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:25:42,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:25:42,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:25:42,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:25:42,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:25:42,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:25:42,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:25:42,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:25:42,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:25:42,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:25:42,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:25:42,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:25:42,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:25:42,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:25:42,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:25:42,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:25:42,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:25:42,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-07 07:25:42,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:25:42,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:25:42,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:25:42,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:25:42,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:25:42,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:25:42,145 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:25:42,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:25:42,145 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:25:42,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:25:42,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:25:42,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:25:42,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:25:42,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:25:42,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:25:42,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:25:42,148 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-07 07:25:42,148 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:25:42,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:25:42,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:25:42,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:25:42,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:25:42,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:25:42,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:25:42,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:25:42,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:25:42,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:25:42,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:25:42,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:25:42,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:25:42,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:25:42,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:25:42,153 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_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f10835cae624a55ab7ddafebce266aec4d698d20be3ba19631eaedd9136bff [2021-11-07 07:25:42,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:25:42,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:25:42,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:25:42,498 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:25:42,499 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:25:42,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c [2021-11-07 07:25:42,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/data/85c263340/397af9f972484e2daf7399d6c4e22c75/FLAG38fc077f8 [2021-11-07 07:25:43,140 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:25:43,142 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/sv-benchmarks/c/bitvector/soft_float_2.c.cil.c [2021-11-07 07:25:43,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/data/85c263340/397af9f972484e2daf7399d6c4e22c75/FLAG38fc077f8 [2021-11-07 07:25:43,503 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/data/85c263340/397af9f972484e2daf7399d6c4e22c75 [2021-11-07 07:25:43,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:25:43,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:25:43,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:25:43,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:25:43,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:25:43,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e915bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43, skipping insertion in model container [2021-11-07 07:25:43,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:25:43,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:25:43,683 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_09a2d61e-c1ff-466d-a44a-c9c75dca9969/sv-benchmarks/c/bitvector/soft_float_2.c.cil.c[727,740] [2021-11-07 07:25:43,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:25:43,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:25:43,759 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_09a2d61e-c1ff-466d-a44a-c9c75dca9969/sv-benchmarks/c/bitvector/soft_float_2.c.cil.c[727,740] [2021-11-07 07:25:43,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:25:43,816 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:25:43,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43 WrapperNode [2021-11-07 07:25:43,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:25:43,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:25:43,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:25:43,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:25:43,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:25:43,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:25:43,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:25:43,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:25:43,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:25:43,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:25:43,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:25:43,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:25:43,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (1/1) ... [2021-11-07 07:25:43,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:25:43,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:43,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:25:44,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:25:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:25:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:25:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:25:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:25:44,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:25:44,555 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-11-07 07:25:44,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:25:44 BoogieIcfgContainer [2021-11-07 07:25:44,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:25:44,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:25:44,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:25:44,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:25:44,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:25:43" (1/3) ... [2021-11-07 07:25:44,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346fedf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:25:44, skipping insertion in model container [2021-11-07 07:25:44,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:25:43" (2/3) ... [2021-11-07 07:25:44,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346fedf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:25:44, skipping insertion in model container [2021-11-07 07:25:44,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:25:44" (3/3) ... [2021-11-07 07:25:44,567 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_2.c.cil.c [2021-11-07 07:25:44,573 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:25:44,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-11-07 07:25:44,639 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:25:44,650 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:25:44,650 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-11-07 07:25:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 116 states have (on average 1.853448275862069) internal successors, (215), 162 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 07:25:44,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:44,681 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:44,681 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:44,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:44,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-11-07 07:25:44,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:44,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776184730] [2021-11-07 07:25:44,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:44,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:44,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:44,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776184730] [2021-11-07 07:25:44,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776184730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:44,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:44,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:25:44,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876766081] [2021-11-07 07:25:44,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 07:25:44,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:44,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 07:25:44,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:25:44,927 INFO L87 Difference]: Start difference. First operand has 163 states, 116 states have (on average 1.853448275862069) internal successors, (215), 162 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:44,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:44,972 INFO L93 Difference]: Finished difference Result 306 states and 402 transitions. [2021-11-07 07:25:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 07:25:44,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-07 07:25:44,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:44,985 INFO L225 Difference]: With dead ends: 306 [2021-11-07 07:25:44,985 INFO L226 Difference]: Without dead ends: 148 [2021-11-07 07:25:44,989 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:25:45,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-07 07:25:45,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-07 07:25:45,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 147 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 175 transitions. [2021-11-07 07:25:45,033 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 175 transitions. Word has length 7 [2021-11-07 07:25:45,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:45,034 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 175 transitions. [2021-11-07 07:25:45,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,035 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 175 transitions. [2021-11-07 07:25:45,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 07:25:45,035 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:45,036 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:45,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:25:45,036 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:45,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:45,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-11-07 07:25:45,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:45,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35190119] [2021-11-07 07:25:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:45,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:45,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:45,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35190119] [2021-11-07 07:25:45,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35190119] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:45,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:45,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:25:45,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125168229] [2021-11-07 07:25:45,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:25:45,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:45,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:25:45,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:45,098 INFO L87 Difference]: Start difference. First operand 148 states and 175 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:45,376 INFO L93 Difference]: Finished difference Result 309 states and 369 transitions. [2021-11-07 07:25:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:25:45,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-07 07:25:45,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:45,381 INFO L225 Difference]: With dead ends: 309 [2021-11-07 07:25:45,381 INFO L226 Difference]: Without dead ends: 180 [2021-11-07 07:25:45,382 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:45,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-07 07:25:45,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 174. [2021-11-07 07:25:45,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 130 states have (on average 1.5615384615384615) internal successors, (203), 173 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 203 transitions. [2021-11-07 07:25:45,412 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 203 transitions. Word has length 7 [2021-11-07 07:25:45,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:45,412 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 203 transitions. [2021-11-07 07:25:45,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,413 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 203 transitions. [2021-11-07 07:25:45,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 07:25:45,414 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:45,414 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:45,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:25:45,415 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:45,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:45,418 INFO L85 PathProgramCache]: Analyzing trace with hash 794034541, now seen corresponding path program 1 times [2021-11-07 07:25:45,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:45,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873851083] [2021-11-07 07:25:45,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:45,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:45,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:45,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873851083] [2021-11-07 07:25:45,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873851083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:45,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:45,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:45,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234837683] [2021-11-07 07:25:45,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:25:45,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:45,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:25:45,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:45,536 INFO L87 Difference]: Start difference. First operand 174 states and 203 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:45,609 INFO L93 Difference]: Finished difference Result 308 states and 359 transitions. [2021-11-07 07:25:45,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:25:45,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 07:25:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:45,611 INFO L225 Difference]: With dead ends: 308 [2021-11-07 07:25:45,612 INFO L226 Difference]: Without dead ends: 137 [2021-11-07 07:25:45,613 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:45,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-07 07:25:45,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-07 07:25:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 101 states have (on average 1.5742574257425743) internal successors, (159), 136 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2021-11-07 07:25:45,631 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 10 [2021-11-07 07:25:45,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:45,632 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2021-11-07 07:25:45,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2021-11-07 07:25:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 07:25:45,634 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:45,634 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:45,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:25:45,635 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:45,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:45,637 INFO L85 PathProgramCache]: Analyzing trace with hash -59736963, now seen corresponding path program 1 times [2021-11-07 07:25:45,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:45,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297060157] [2021-11-07 07:25:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:45,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:45,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:45,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297060157] [2021-11-07 07:25:45,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297060157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:45,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:45,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:45,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869881416] [2021-11-07 07:25:45,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:25:45,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:45,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:25:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:45,753 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:45,870 INFO L93 Difference]: Finished difference Result 196 states and 225 transitions. [2021-11-07 07:25:45,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:25:45,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 07:25:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:45,873 INFO L225 Difference]: With dead ends: 196 [2021-11-07 07:25:45,873 INFO L226 Difference]: Without dead ends: 189 [2021-11-07 07:25:45,873 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:25:45,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-07 07:25:45,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 138. [2021-11-07 07:25:45,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 107 states have (on average 1.5046728971962617) internal successors, (161), 137 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2021-11-07 07:25:45,903 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 13 [2021-11-07 07:25:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:45,905 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2021-11-07 07:25:45,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2021-11-07 07:25:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 07:25:45,907 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:45,907 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:45,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:25:45,908 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:45,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2067373522, now seen corresponding path program 1 times [2021-11-07 07:25:45,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:45,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448416762] [2021-11-07 07:25:45,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:45,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:46,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:46,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:46,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448416762] [2021-11-07 07:25:46,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448416762] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:46,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:46,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:46,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739153492] [2021-11-07 07:25:46,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:25:46,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:46,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:25:46,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:46,019 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:46,065 INFO L93 Difference]: Finished difference Result 239 states and 278 transitions. [2021-11-07 07:25:46,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:25:46,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 07:25:46,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:46,067 INFO L225 Difference]: With dead ends: 239 [2021-11-07 07:25:46,067 INFO L226 Difference]: Without dead ends: 120 [2021-11-07 07:25:46,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:25:46,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-07 07:25:46,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-07 07:25:46,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 119 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 138 transitions. [2021-11-07 07:25:46,083 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 138 transitions. Word has length 13 [2021-11-07 07:25:46,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:46,083 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 138 transitions. [2021-11-07 07:25:46,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 138 transitions. [2021-11-07 07:25:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 07:25:46,084 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:46,084 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:46,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 07:25:46,084 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:46,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1665546515, now seen corresponding path program 1 times [2021-11-07 07:25:46,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:46,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040640696] [2021-11-07 07:25:46,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:46,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:46,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:46,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:46,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040640696] [2021-11-07 07:25:46,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040640696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:46,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:46,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:46,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346501942] [2021-11-07 07:25:46,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:25:46,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:46,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:25:46,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:46,137 INFO L87 Difference]: Start difference. First operand 120 states and 138 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:46,275 INFO L93 Difference]: Finished difference Result 272 states and 312 transitions. [2021-11-07 07:25:46,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:25:46,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 07:25:46,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:46,284 INFO L225 Difference]: With dead ends: 272 [2021-11-07 07:25:46,285 INFO L226 Difference]: Without dead ends: 174 [2021-11-07 07:25:46,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:46,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-07 07:25:46,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 130. [2021-11-07 07:25:46,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 101 states have (on average 1.4851485148514851) internal successors, (150), 129 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 150 transitions. [2021-11-07 07:25:46,300 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 150 transitions. Word has length 15 [2021-11-07 07:25:46,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:46,301 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 150 transitions. [2021-11-07 07:25:46,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,301 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 150 transitions. [2021-11-07 07:25:46,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 07:25:46,302 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:46,302 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:46,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 07:25:46,302 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:46,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:46,303 INFO L85 PathProgramCache]: Analyzing trace with hash 92334597, now seen corresponding path program 1 times [2021-11-07 07:25:46,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:46,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153790416] [2021-11-07 07:25:46,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:46,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:46,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:46,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153790416] [2021-11-07 07:25:46,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153790416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:46,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:46,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:46,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400024370] [2021-11-07 07:25:46,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:25:46,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:46,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:25:46,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:46,372 INFO L87 Difference]: Start difference. First operand 130 states and 150 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:46,475 INFO L93 Difference]: Finished difference Result 172 states and 195 transitions. [2021-11-07 07:25:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:25:46,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 07:25:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:46,477 INFO L225 Difference]: With dead ends: 172 [2021-11-07 07:25:46,477 INFO L226 Difference]: Without dead ends: 171 [2021-11-07 07:25:46,477 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-07 07:25:46,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 129. [2021-11-07 07:25:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 101 states have (on average 1.4653465346534653) internal successors, (148), 128 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 148 transitions. [2021-11-07 07:25:46,483 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 148 transitions. Word has length 16 [2021-11-07 07:25:46,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:46,484 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 148 transitions. [2021-11-07 07:25:46,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 148 transitions. [2021-11-07 07:25:46,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 07:25:46,485 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:46,485 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:46,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 07:25:46,485 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:46,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:46,486 INFO L85 PathProgramCache]: Analyzing trace with hash -493050292, now seen corresponding path program 1 times [2021-11-07 07:25:46,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:46,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360739503] [2021-11-07 07:25:46,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:46,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:46,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 07:25:46,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:46,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360739503] [2021-11-07 07:25:46,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360739503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:46,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:46,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:46,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158589961] [2021-11-07 07:25:46,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:25:46,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:46,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:25:46,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:46,525 INFO L87 Difference]: Start difference. First operand 129 states and 148 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:46,634 INFO L93 Difference]: Finished difference Result 231 states and 261 transitions. [2021-11-07 07:25:46,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:25:46,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 [2021-11-07 07:25:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:46,636 INFO L225 Difference]: With dead ends: 231 [2021-11-07 07:25:46,636 INFO L226 Difference]: Without dead ends: 222 [2021-11-07 07:25:46,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:46,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-07 07:25:46,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 127. [2021-11-07 07:25:46,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 126 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2021-11-07 07:25:46,645 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 20 [2021-11-07 07:25:46,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:46,646 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2021-11-07 07:25:46,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,646 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2021-11-07 07:25:46,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 07:25:46,649 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:46,650 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:46,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 07:25:46,650 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:46,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:46,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1879445663, now seen corresponding path program 1 times [2021-11-07 07:25:46,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:46,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994447306] [2021-11-07 07:25:46,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:46,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:46,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:46,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994447306] [2021-11-07 07:25:46,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994447306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:46,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:46,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:46,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324936475] [2021-11-07 07:25:46,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:25:46,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:46,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:25:46,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:46,751 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:46,847 INFO L93 Difference]: Finished difference Result 171 states and 197 transitions. [2021-11-07 07:25:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:25:46,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2021-11-07 07:25:46,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:46,850 INFO L225 Difference]: With dead ends: 171 [2021-11-07 07:25:46,850 INFO L226 Difference]: Without dead ends: 168 [2021-11-07 07:25:46,852 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:25:46,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-07 07:25:46,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 119. [2021-11-07 07:25:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 99 states have (on average 1.4141414141414141) internal successors, (140), 118 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 140 transitions. [2021-11-07 07:25:46,860 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 140 transitions. Word has length 26 [2021-11-07 07:25:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:46,861 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 140 transitions. [2021-11-07 07:25:46,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:46,861 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 140 transitions. [2021-11-07 07:25:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 07:25:46,864 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:46,865 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:46,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 07:25:46,867 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:46,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:46,868 INFO L85 PathProgramCache]: Analyzing trace with hash 143003537, now seen corresponding path program 1 times [2021-11-07 07:25:46,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:46,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507384173] [2021-11-07 07:25:46,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:46,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:46,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:46,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507384173] [2021-11-07 07:25:46,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507384173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:46,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:46,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:25:46,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743228631] [2021-11-07 07:25:46,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:25:46,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:46,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:25:46,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:46,939 INFO L87 Difference]: Start difference. First operand 119 states and 140 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:47,013 INFO L93 Difference]: Finished difference Result 170 states and 197 transitions. [2021-11-07 07:25:47,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:25:47,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-07 07:25:47,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:47,016 INFO L225 Difference]: With dead ends: 170 [2021-11-07 07:25:47,016 INFO L226 Difference]: Without dead ends: 168 [2021-11-07 07:25:47,016 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:25:47,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-07 07:25:47,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 122. [2021-11-07 07:25:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 103 states have (on average 1.3883495145631068) internal successors, (143), 121 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2021-11-07 07:25:47,024 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 27 [2021-11-07 07:25:47,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:47,025 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2021-11-07 07:25:47,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:47,026 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2021-11-07 07:25:47,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 07:25:47,026 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:47,027 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:47,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 07:25:47,027 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:47,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:47,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1864633022, now seen corresponding path program 1 times [2021-11-07 07:25:47,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:47,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022249950] [2021-11-07 07:25:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:47,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:47,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:47,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:47,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022249950] [2021-11-07 07:25:47,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022249950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:25:47,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:25:47,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:25:47,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043519767] [2021-11-07 07:25:47,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:25:47,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:47,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:25:47,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:47,090 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:47,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:47,146 INFO L93 Difference]: Finished difference Result 227 states and 266 transitions. [2021-11-07 07:25:47,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:25:47,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-07 07:25:47,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:47,148 INFO L225 Difference]: With dead ends: 227 [2021-11-07 07:25:47,148 INFO L226 Difference]: Without dead ends: 124 [2021-11-07 07:25:47,148 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:25:47,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-07 07:25:47,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2021-11-07 07:25:47,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 103 states have (on average 1.3786407766990292) internal successors, (142), 121 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:47,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2021-11-07 07:25:47,155 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 27 [2021-11-07 07:25:47,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:47,155 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2021-11-07 07:25:47,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:47,155 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2021-11-07 07:25:47,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 07:25:47,156 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:47,156 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:47,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 07:25:47,157 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:47,157 INFO L85 PathProgramCache]: Analyzing trace with hash -842241641, now seen corresponding path program 1 times [2021-11-07 07:25:47,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:47,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250537869] [2021-11-07 07:25:47,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:47,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:47,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:47,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250537869] [2021-11-07 07:25:47,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250537869] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:47,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796257249] [2021-11-07 07:25:47,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:47,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:47,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:47,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:47,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 07:25:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:47,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 07:25:47,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:47,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796257249] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:47,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:47,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-07 07:25:47,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558883090] [2021-11-07 07:25:47,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:25:47,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:47,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:25:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:25:47,568 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:47,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:47,673 INFO L93 Difference]: Finished difference Result 276 states and 319 transitions. [2021-11-07 07:25:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:25:47,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-07 07:25:47,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:47,676 INFO L225 Difference]: With dead ends: 276 [2021-11-07 07:25:47,676 INFO L226 Difference]: Without dead ends: 178 [2021-11-07 07:25:47,677 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:25:47,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-07 07:25:47,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 127. [2021-11-07 07:25:47,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 126 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:47,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2021-11-07 07:25:47,687 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 29 [2021-11-07 07:25:47,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:47,688 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2021-11-07 07:25:47,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:47,688 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2021-11-07 07:25:47,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 07:25:47,689 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:47,689 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:47,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:47,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:47,915 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:47,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:47,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1541188357, now seen corresponding path program 1 times [2021-11-07 07:25:47,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:47,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040042435] [2021-11-07 07:25:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:47,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:48,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:48,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:48,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040042435] [2021-11-07 07:25:48,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040042435] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:48,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104130515] [2021-11-07 07:25:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:48,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:48,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:48,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:48,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 07:25:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:48,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:25:48,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:48,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104130515] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:48,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:48,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-07 07:25:48,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524715145] [2021-11-07 07:25:48,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:25:48,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:48,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:25:48,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:25:48,329 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:48,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:48,456 INFO L93 Difference]: Finished difference Result 232 states and 271 transitions. [2021-11-07 07:25:48,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:25:48,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 07:25:48,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:48,458 INFO L225 Difference]: With dead ends: 232 [2021-11-07 07:25:48,458 INFO L226 Difference]: Without dead ends: 129 [2021-11-07 07:25:48,459 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:25:48,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-07 07:25:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2021-11-07 07:25:48,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.3611111111111112) internal successors, (147), 126 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:48,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2021-11-07 07:25:48,466 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 32 [2021-11-07 07:25:48,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:48,466 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2021-11-07 07:25:48,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:48,466 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2021-11-07 07:25:48,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 07:25:48,467 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:48,467 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:48,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:48,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:48,685 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:48,686 INFO L85 PathProgramCache]: Analyzing trace with hash 750436112, now seen corresponding path program 2 times [2021-11-07 07:25:48,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:48,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063879616] [2021-11-07 07:25:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:48,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:48,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:48,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063879616] [2021-11-07 07:25:48,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063879616] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:48,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726224269] [2021-11-07 07:25:48,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:25:48,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:48,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:48,759 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:48,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 07:25:48,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:25:48,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:48,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 07:25:48,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:48,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726224269] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:48,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:48,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-11-07 07:25:48,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463467618] [2021-11-07 07:25:48,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 07:25:48,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:48,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 07:25:48,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:25:48,988 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:49,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:49,093 INFO L93 Difference]: Finished difference Result 281 states and 324 transitions. [2021-11-07 07:25:49,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:25:49,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 07:25:49,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:49,097 INFO L225 Difference]: With dead ends: 281 [2021-11-07 07:25:49,097 INFO L226 Difference]: Without dead ends: 183 [2021-11-07 07:25:49,098 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:25:49,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-07 07:25:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 132. [2021-11-07 07:25:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 131 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 153 transitions. [2021-11-07 07:25:49,108 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 153 transitions. Word has length 34 [2021-11-07 07:25:49,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:49,108 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 153 transitions. [2021-11-07 07:25:49,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:49,111 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 153 transitions. [2021-11-07 07:25:49,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 07:25:49,112 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:49,112 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:49,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:49,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-07 07:25:49,331 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:49,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:49,331 INFO L85 PathProgramCache]: Analyzing trace with hash -581967646, now seen corresponding path program 2 times [2021-11-07 07:25:49,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:49,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742544905] [2021-11-07 07:25:49,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:49,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:49,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:49,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742544905] [2021-11-07 07:25:49,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742544905] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:49,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991271840] [2021-11-07 07:25:49,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:25:49,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:49,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:49,427 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:49,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 07:25:49,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:25:49,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:49,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:25:49,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:49,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991271840] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:49,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:49,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-11-07 07:25:49,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036776359] [2021-11-07 07:25:49,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 07:25:49,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:49,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 07:25:49,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:25:49,785 INFO L87 Difference]: Start difference. First operand 132 states and 153 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:49,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:49,898 INFO L93 Difference]: Finished difference Result 237 states and 276 transitions. [2021-11-07 07:25:49,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:25:49,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 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 37 [2021-11-07 07:25:49,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:49,900 INFO L225 Difference]: With dead ends: 237 [2021-11-07 07:25:49,900 INFO L226 Difference]: Without dead ends: 134 [2021-11-07 07:25:49,902 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:25:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-07 07:25:49,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-11-07 07:25:49,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 113 states have (on average 1.345132743362832) internal successors, (152), 131 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:49,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 152 transitions. [2021-11-07 07:25:49,910 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 152 transitions. Word has length 37 [2021-11-07 07:25:49,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:49,911 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 152 transitions. [2021-11-07 07:25:49,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 152 transitions. [2021-11-07 07:25:49,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 07:25:49,912 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:49,912 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:49,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:50,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-07 07:25:50,137 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:50,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:50,138 INFO L85 PathProgramCache]: Analyzing trace with hash -856429257, now seen corresponding path program 3 times [2021-11-07 07:25:50,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:50,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552025337] [2021-11-07 07:25:50,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:50,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:50,211 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:50,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:50,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552025337] [2021-11-07 07:25:50,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552025337] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:50,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986138598] [2021-11-07 07:25:50,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:25:50,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:50,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:50,213 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:50,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 07:25:50,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-07 07:25:50,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:50,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 07:25:50,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:50,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986138598] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:50,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:50,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-11-07 07:25:50,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255057579] [2021-11-07 07:25:50,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:25:50,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:50,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:25:50,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:25:50,454 INFO L87 Difference]: Start difference. First operand 132 states and 152 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 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) [2021-11-07 07:25:50,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:50,555 INFO L93 Difference]: Finished difference Result 286 states and 329 transitions. [2021-11-07 07:25:50,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 07:25:50,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 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 39 [2021-11-07 07:25:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:50,558 INFO L225 Difference]: With dead ends: 286 [2021-11-07 07:25:50,558 INFO L226 Difference]: Without dead ends: 188 [2021-11-07 07:25:50,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:25:50,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-07 07:25:50,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 137. [2021-11-07 07:25:50,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.3389830508474576) internal successors, (158), 136 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:50,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 158 transitions. [2021-11-07 07:25:50,567 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 158 transitions. Word has length 39 [2021-11-07 07:25:50,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:50,567 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 158 transitions. [2021-11-07 07:25:50,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 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) [2021-11-07 07:25:50,568 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 158 transitions. [2021-11-07 07:25:50,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 07:25:50,568 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:50,569 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:50,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:50,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-07 07:25:50,783 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:50,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:50,783 INFO L85 PathProgramCache]: Analyzing trace with hash 997305691, now seen corresponding path program 3 times [2021-11-07 07:25:50,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:50,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81309961] [2021-11-07 07:25:50,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:50,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:50,862 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:50,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:50,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81309961] [2021-11-07 07:25:50,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81309961] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:50,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774843332] [2021-11-07 07:25:50,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:25:50,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:50,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:50,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:50,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 07:25:51,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-07 07:25:51,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:51,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 07:25:51,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:51,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774843332] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:51,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:51,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-11-07 07:25:51,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321128962] [2021-11-07 07:25:51,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:25:51,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:51,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:25:51,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:25:51,270 INFO L87 Difference]: Start difference. First operand 137 states and 158 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:51,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:51,386 INFO L93 Difference]: Finished difference Result 242 states and 281 transitions. [2021-11-07 07:25:51,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 07:25:51,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-07 07:25:51,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:51,388 INFO L225 Difference]: With dead ends: 242 [2021-11-07 07:25:51,388 INFO L226 Difference]: Without dead ends: 139 [2021-11-07 07:25:51,388 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:25:51,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-07 07:25:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2021-11-07 07:25:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.3305084745762712) internal successors, (157), 136 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 157 transitions. [2021-11-07 07:25:51,397 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 157 transitions. Word has length 42 [2021-11-07 07:25:51,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:51,397 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 157 transitions. [2021-11-07 07:25:51,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 157 transitions. [2021-11-07 07:25:51,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 07:25:51,398 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:51,399 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:51,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:51,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-07 07:25:51,627 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:51,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:51,627 INFO L85 PathProgramCache]: Analyzing trace with hash 701792112, now seen corresponding path program 4 times [2021-11-07 07:25:51,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:51,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714138066] [2021-11-07 07:25:51,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:51,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:51,690 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:51,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:51,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714138066] [2021-11-07 07:25:51,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714138066] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:51,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909841120] [2021-11-07 07:25:51,691 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:25:51,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:51,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:51,692 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:51,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 07:25:51,843 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:25:51,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:51,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:25:51,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:51,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909841120] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:51,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:51,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-11-07 07:25:51,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145143448] [2021-11-07 07:25:51,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:25:51,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:51,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:25:51,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:25:51,988 INFO L87 Difference]: Start difference. First operand 137 states and 157 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:52,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:52,096 INFO L93 Difference]: Finished difference Result 291 states and 334 transitions. [2021-11-07 07:25:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:25:52,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 07:25:52,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:52,098 INFO L225 Difference]: With dead ends: 291 [2021-11-07 07:25:52,098 INFO L226 Difference]: Without dead ends: 193 [2021-11-07 07:25:52,099 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:25:52,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-07 07:25:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 142. [2021-11-07 07:25:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 123 states have (on average 1.3252032520325203) internal successors, (163), 141 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 163 transitions. [2021-11-07 07:25:52,108 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 163 transitions. Word has length 44 [2021-11-07 07:25:52,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:52,108 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 163 transitions. [2021-11-07 07:25:52,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 163 transitions. [2021-11-07 07:25:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 07:25:52,109 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:52,110 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:52,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:52,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-07 07:25:52,331 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:52,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1963574402, now seen corresponding path program 4 times [2021-11-07 07:25:52,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:52,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487558426] [2021-11-07 07:25:52,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:52,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:52,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:52,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487558426] [2021-11-07 07:25:52,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487558426] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:52,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272283656] [2021-11-07 07:25:52,429 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:25:52,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:52,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:52,430 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:52,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 07:25:52,581 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:25:52,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:52,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:25:52,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:52,840 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:52,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272283656] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:52,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:52,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-11-07 07:25:52,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201126462] [2021-11-07 07:25:52,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:25:52,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:25:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:25:52,842 INFO L87 Difference]: Start difference. First operand 142 states and 163 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 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) [2021-11-07 07:25:53,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:53,040 INFO L93 Difference]: Finished difference Result 247 states and 286 transitions. [2021-11-07 07:25:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:25:53,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 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 47 [2021-11-07 07:25:53,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:53,042 INFO L225 Difference]: With dead ends: 247 [2021-11-07 07:25:53,042 INFO L226 Difference]: Without dead ends: 144 [2021-11-07 07:25:53,042 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:25:53,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-07 07:25:53,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2021-11-07 07:25:53,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 123 states have (on average 1.3170731707317074) internal successors, (162), 141 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:53,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 162 transitions. [2021-11-07 07:25:53,051 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 162 transitions. Word has length 47 [2021-11-07 07:25:53,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:53,051 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 162 transitions. [2021-11-07 07:25:53,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 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) [2021-11-07 07:25:53,052 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 162 transitions. [2021-11-07 07:25:53,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 07:25:53,052 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:53,053 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:53,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:53,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:53,278 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1573087447, now seen corresponding path program 5 times [2021-11-07 07:25:53,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:53,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153566483] [2021-11-07 07:25:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:53,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:53,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:53,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153566483] [2021-11-07 07:25:53,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153566483] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:53,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305696121] [2021-11-07 07:25:53,377 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:25:53,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:53,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:53,378 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:53,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 07:25:53,558 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-11-07 07:25:53,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:53,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:25:53,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:53,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305696121] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:53,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:53,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-11-07 07:25:53,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763024546] [2021-11-07 07:25:53,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 07:25:53,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:53,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:25:53,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:25:53,718 INFO L87 Difference]: Start difference. First operand 142 states and 162 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:53,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:53,859 INFO L93 Difference]: Finished difference Result 296 states and 339 transitions. [2021-11-07 07:25:53,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 07:25:53,860 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 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 [2021-11-07 07:25:53,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:53,862 INFO L225 Difference]: With dead ends: 296 [2021-11-07 07:25:53,862 INFO L226 Difference]: Without dead ends: 198 [2021-11-07 07:25:53,862 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:25:53,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-07 07:25:53,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 147. [2021-11-07 07:25:53,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 128 states have (on average 1.3125) internal successors, (168), 146 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:53,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 168 transitions. [2021-11-07 07:25:53,871 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 168 transitions. Word has length 49 [2021-11-07 07:25:53,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:53,871 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 168 transitions. [2021-11-07 07:25:53,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:53,872 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 168 transitions. [2021-11-07 07:25:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 07:25:53,872 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:53,873 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:53,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:54,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:54,082 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:54,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:54,083 INFO L85 PathProgramCache]: Analyzing trace with hash -59437637, now seen corresponding path program 5 times [2021-11-07 07:25:54,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:54,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246966706] [2021-11-07 07:25:54,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:54,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:54,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:54,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246966706] [2021-11-07 07:25:54,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246966706] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:54,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887366646] [2021-11-07 07:25:54,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:25:54,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:54,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:54,214 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:54,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 07:25:54,429 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-07 07:25:54,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:54,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 07:25:54,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:54,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887366646] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:54,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:54,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-11-07 07:25:54,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938973982] [2021-11-07 07:25:54,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 07:25:54,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:54,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:25:54,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:25:54,805 INFO L87 Difference]: Start difference. First operand 147 states and 168 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:54,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:54,928 INFO L93 Difference]: Finished difference Result 252 states and 291 transitions. [2021-11-07 07:25:54,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 07:25:54,929 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 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 52 [2021-11-07 07:25:54,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:54,930 INFO L225 Difference]: With dead ends: 252 [2021-11-07 07:25:54,931 INFO L226 Difference]: Without dead ends: 149 [2021-11-07 07:25:54,931 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:25:54,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-07 07:25:54,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2021-11-07 07:25:54,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 128 states have (on average 1.3046875) internal successors, (167), 146 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:54,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 167 transitions. [2021-11-07 07:25:54,940 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 167 transitions. Word has length 52 [2021-11-07 07:25:54,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:54,941 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 167 transitions. [2021-11-07 07:25:54,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:54,941 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 167 transitions. [2021-11-07 07:25:54,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 07:25:54,942 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:54,942 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:54,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:55,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:55,158 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:55,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1216264240, now seen corresponding path program 6 times [2021-11-07 07:25:55,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:55,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424987470] [2021-11-07 07:25:55,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:55,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:55,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:55,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424987470] [2021-11-07 07:25:55,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424987470] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:55,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174472370] [2021-11-07 07:25:55,252 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:25:55,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:55,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:55,253 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:55,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 07:25:55,516 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-11-07 07:25:55,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:55,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 07:25:55,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:55,689 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:55,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174472370] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:55,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:55,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-11-07 07:25:55,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654425539] [2021-11-07 07:25:55,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:25:55,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:55,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:25:55,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:25:55,693 INFO L87 Difference]: Start difference. First operand 147 states and 167 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:55,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:55,808 INFO L93 Difference]: Finished difference Result 301 states and 344 transitions. [2021-11-07 07:25:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 07:25:55,809 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 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 54 [2021-11-07 07:25:55,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:55,810 INFO L225 Difference]: With dead ends: 301 [2021-11-07 07:25:55,811 INFO L226 Difference]: Without dead ends: 203 [2021-11-07 07:25:55,812 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:25:55,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-07 07:25:55,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 152. [2021-11-07 07:25:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.300751879699248) internal successors, (173), 151 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:55,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2021-11-07 07:25:55,821 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 54 [2021-11-07 07:25:55,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:55,822 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2021-11-07 07:25:55,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:55,822 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2021-11-07 07:25:55,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 07:25:55,823 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:55,823 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:55,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:56,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-07 07:25:56,038 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:56,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:56,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1391697954, now seen corresponding path program 6 times [2021-11-07 07:25:56,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:56,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258483235] [2021-11-07 07:25:56,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:56,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:56,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:56,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258483235] [2021-11-07 07:25:56,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258483235] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:56,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322458492] [2021-11-07 07:25:56,178 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:25:56,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:56,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:56,180 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:56,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 07:25:56,593 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-07 07:25:56,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:56,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 07:25:56,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:56,945 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:56,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322458492] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:56,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:56,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-11-07 07:25:56,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382018914] [2021-11-07 07:25:56,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:25:56,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:56,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:25:56,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:25:56,947 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:57,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:57,124 INFO L93 Difference]: Finished difference Result 257 states and 296 transitions. [2021-11-07 07:25:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 07:25:57,124 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 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 57 [2021-11-07 07:25:57,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:57,126 INFO L225 Difference]: With dead ends: 257 [2021-11-07 07:25:57,126 INFO L226 Difference]: Without dead ends: 154 [2021-11-07 07:25:57,126 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:25:57,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-07 07:25:57,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2021-11-07 07:25:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.2932330827067668) internal successors, (172), 151 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:57,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 172 transitions. [2021-11-07 07:25:57,134 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 172 transitions. Word has length 57 [2021-11-07 07:25:57,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:57,135 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 172 transitions. [2021-11-07 07:25:57,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:57,135 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 172 transitions. [2021-11-07 07:25:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 07:25:57,136 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:57,136 INFO L513 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:57,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:57,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-07 07:25:57,341 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:57,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:57,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1755634807, now seen corresponding path program 7 times [2021-11-07 07:25:57,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:57,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546087631] [2021-11-07 07:25:57,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:57,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:57,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:57,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546087631] [2021-11-07 07:25:57,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546087631] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:57,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029787522] [2021-11-07 07:25:57,439 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:25:57,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:57,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:57,440 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:57,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 07:25:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:57,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:25:57,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:57,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029787522] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:57,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:57,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-11-07 07:25:57,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941255940] [2021-11-07 07:25:57,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:25:57,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:57,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:25:57,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:25:57,830 INFO L87 Difference]: Start difference. First operand 152 states and 172 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:57,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:57,976 INFO L93 Difference]: Finished difference Result 306 states and 349 transitions. [2021-11-07 07:25:57,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 07:25:57,977 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 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 59 [2021-11-07 07:25:57,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:57,978 INFO L225 Difference]: With dead ends: 306 [2021-11-07 07:25:57,978 INFO L226 Difference]: Without dead ends: 208 [2021-11-07 07:25:57,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:25:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-07 07:25:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 157. [2021-11-07 07:25:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.289855072463768) internal successors, (178), 156 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:57,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 178 transitions. [2021-11-07 07:25:57,988 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 178 transitions. Word has length 59 [2021-11-07 07:25:57,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:57,988 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 178 transitions. [2021-11-07 07:25:57,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:57,989 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2021-11-07 07:25:57,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 07:25:57,995 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:57,995 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:58,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:58,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-07 07:25:58,203 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:58,203 INFO L85 PathProgramCache]: Analyzing trace with hash 780367387, now seen corresponding path program 7 times [2021-11-07 07:25:58,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:58,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757793672] [2021-11-07 07:25:58,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:58,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:58,321 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:58,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:58,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757793672] [2021-11-07 07:25:58,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757793672] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:58,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864799202] [2021-11-07 07:25:58,323 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:25:58,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:58,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:58,324 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:58,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 07:25:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:58,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-07 07:25:58,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:25:59,011 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:59,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864799202] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:59,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:25:59,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-11-07 07:25:59,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033993734] [2021-11-07 07:25:59,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:25:59,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:25:59,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:25:59,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:25:59,013 INFO L87 Difference]: Start difference. First operand 157 states and 178 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:59,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:25:59,237 INFO L93 Difference]: Finished difference Result 262 states and 301 transitions. [2021-11-07 07:25:59,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 07:25:59,247 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-07 07:25:59,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:25:59,248 INFO L225 Difference]: With dead ends: 262 [2021-11-07 07:25:59,248 INFO L226 Difference]: Without dead ends: 159 [2021-11-07 07:25:59,249 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:25:59,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-07 07:25:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2021-11-07 07:25:59,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.2826086956521738) internal successors, (177), 156 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:59,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 177 transitions. [2021-11-07 07:25:59,257 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 177 transitions. Word has length 62 [2021-11-07 07:25:59,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:25:59,258 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 177 transitions. [2021-11-07 07:25:59,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:25:59,258 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 177 transitions. [2021-11-07 07:25:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 07:25:59,259 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:25:59,259 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:25:59,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-07 07:25:59,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:59,474 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:25:59,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:25:59,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1617487824, now seen corresponding path program 8 times [2021-11-07 07:25:59,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:25:59,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310040783] [2021-11-07 07:25:59,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:25:59,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:25:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:25:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:25:59,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:25:59,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310040783] [2021-11-07 07:25:59,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310040783] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:25:59,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901714629] [2021-11-07 07:25:59,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:25:59,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:25:59,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:25:59,564 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:25:59,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-07 07:25:59,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:25:59,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:25:59,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 07:25:59,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:00,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901714629] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:00,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:00,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-11-07 07:26:00,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401226259] [2021-11-07 07:26:00,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 07:26:00,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:00,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 07:26:00,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:26:00,070 INFO L87 Difference]: Start difference. First operand 157 states and 177 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:00,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:00,275 INFO L93 Difference]: Finished difference Result 311 states and 354 transitions. [2021-11-07 07:26:00,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:26:00,275 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 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 64 [2021-11-07 07:26:00,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:00,277 INFO L225 Difference]: With dead ends: 311 [2021-11-07 07:26:00,277 INFO L226 Difference]: Without dead ends: 213 [2021-11-07 07:26:00,278 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:26:00,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-07 07:26:00,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 162. [2021-11-07 07:26:00,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 143 states have (on average 1.2797202797202798) internal successors, (183), 161 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:00,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 183 transitions. [2021-11-07 07:26:00,295 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 183 transitions. Word has length 64 [2021-11-07 07:26:00,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:00,296 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 183 transitions. [2021-11-07 07:26:00,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 183 transitions. [2021-11-07 07:26:00,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 07:26:00,298 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:00,298 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:00,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:00,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:00,522 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:00,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:00,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1433891778, now seen corresponding path program 8 times [2021-11-07 07:26:00,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:00,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057167291] [2021-11-07 07:26:00,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:00,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:00,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:00,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057167291] [2021-11-07 07:26:00,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057167291] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:00,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607289194] [2021-11-07 07:26:00,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:26:00,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:00,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:00,675 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:00,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-07 07:26:01,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:26:01,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:01,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-07 07:26:01,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:01,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607289194] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:01,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:01,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-11-07 07:26:01,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511857495] [2021-11-07 07:26:01,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 07:26:01,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:01,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 07:26:01,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:26:01,528 INFO L87 Difference]: Start difference. First operand 162 states and 183 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:01,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:01,772 INFO L93 Difference]: Finished difference Result 267 states and 306 transitions. [2021-11-07 07:26:01,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:26:01,773 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-07 07:26:01,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:01,774 INFO L225 Difference]: With dead ends: 267 [2021-11-07 07:26:01,774 INFO L226 Difference]: Without dead ends: 164 [2021-11-07 07:26:01,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 59 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:26:01,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-07 07:26:01,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2021-11-07 07:26:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 143 states have (on average 1.2727272727272727) internal successors, (182), 161 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 182 transitions. [2021-11-07 07:26:01,783 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 182 transitions. Word has length 67 [2021-11-07 07:26:01,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:01,784 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 182 transitions. [2021-11-07 07:26:01,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 182 transitions. [2021-11-07 07:26:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 07:26:01,785 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:01,785 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:01,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:01,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-07 07:26:01,998 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:01,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:01,999 INFO L85 PathProgramCache]: Analyzing trace with hash -645773289, now seen corresponding path program 9 times [2021-11-07 07:26:01,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:01,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818813882] [2021-11-07 07:26:01,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:01,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:02,138 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:02,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:02,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818813882] [2021-11-07 07:26:02,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818813882] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:02,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655970572] [2021-11-07 07:26:02,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:26:02,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:02,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:02,142 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:02,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-07 07:26:03,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-11-07 07:26:03,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:03,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 07:26:03,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:03,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655970572] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:03,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:03,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-11-07 07:26:03,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711251088] [2021-11-07 07:26:03,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 07:26:03,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:03,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 07:26:03,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-07 07:26:03,397 INFO L87 Difference]: Start difference. First operand 162 states and 182 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:03,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:03,536 INFO L93 Difference]: Finished difference Result 316 states and 359 transitions. [2021-11-07 07:26:03,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 07:26:03,537 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 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 69 [2021-11-07 07:26:03,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:03,539 INFO L225 Difference]: With dead ends: 316 [2021-11-07 07:26:03,539 INFO L226 Difference]: Without dead ends: 218 [2021-11-07 07:26:03,539 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-07 07:26:03,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-07 07:26:03,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 167. [2021-11-07 07:26:03,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 148 states have (on average 1.2702702702702702) internal successors, (188), 166 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:03,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 188 transitions. [2021-11-07 07:26:03,548 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 188 transitions. Word has length 69 [2021-11-07 07:26:03,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:03,549 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 188 transitions. [2021-11-07 07:26:03,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 188 transitions. [2021-11-07 07:26:03,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 07:26:03,550 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:03,550 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:03,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:03,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-07 07:26:03,755 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:03,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:03,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1702028923, now seen corresponding path program 9 times [2021-11-07 07:26:03,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:03,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221087611] [2021-11-07 07:26:03,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:03,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:03,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:03,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221087611] [2021-11-07 07:26:03,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221087611] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:03,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189369630] [2021-11-07 07:26:03,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:26:03,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:03,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:03,936 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:03,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-07 07:26:06,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-07 07:26:06,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:06,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-07 07:26:06,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:06,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189369630] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:06,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:06,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-11-07 07:26:06,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077319995] [2021-11-07 07:26:06,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 07:26:06,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 07:26:06,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-07 07:26:06,643 INFO L87 Difference]: Start difference. First operand 167 states and 188 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:06,893 INFO L93 Difference]: Finished difference Result 272 states and 311 transitions. [2021-11-07 07:26:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 07:26:06,894 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 07:26:06,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:06,895 INFO L225 Difference]: With dead ends: 272 [2021-11-07 07:26:06,895 INFO L226 Difference]: Without dead ends: 169 [2021-11-07 07:26:06,896 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 63 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-07 07:26:06,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-07 07:26:06,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2021-11-07 07:26:06,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 148 states have (on average 1.2635135135135136) internal successors, (187), 166 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 187 transitions. [2021-11-07 07:26:06,904 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 187 transitions. Word has length 72 [2021-11-07 07:26:06,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:06,905 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 187 transitions. [2021-11-07 07:26:06,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:06,905 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 187 transitions. [2021-11-07 07:26:06,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 07:26:06,906 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:06,906 INFO L513 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:06,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:07,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-07 07:26:07,112 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:07,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:07,113 INFO L85 PathProgramCache]: Analyzing trace with hash -664014704, now seen corresponding path program 10 times [2021-11-07 07:26:07,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:07,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252346659] [2021-11-07 07:26:07,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:07,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:07,227 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:07,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:07,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252346659] [2021-11-07 07:26:07,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252346659] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:07,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878228389] [2021-11-07 07:26:07,228 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:26:07,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:07,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:07,229 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:07,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-07 07:26:07,628 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:26:07,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:07,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 07:26:07,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:07,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878228389] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:07,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:07,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-11-07 07:26:07,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204488403] [2021-11-07 07:26:07,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 07:26:07,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:07,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 07:26:07,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:26:07,823 INFO L87 Difference]: Start difference. First operand 167 states and 187 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 15 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:07,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:07,927 INFO L93 Difference]: Finished difference Result 321 states and 364 transitions. [2021-11-07 07:26:07,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:26:07,928 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 15 states have internal predecessors, (81), 0 states have call successors, (0), 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 74 [2021-11-07 07:26:07,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:07,929 INFO L225 Difference]: With dead ends: 321 [2021-11-07 07:26:07,930 INFO L226 Difference]: Without dead ends: 223 [2021-11-07 07:26:07,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:26:07,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-07 07:26:07,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 172. [2021-11-07 07:26:07,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 153 states have (on average 1.261437908496732) internal successors, (193), 171 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:07,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 193 transitions. [2021-11-07 07:26:07,948 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 193 transitions. Word has length 74 [2021-11-07 07:26:07,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:07,949 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 193 transitions. [2021-11-07 07:26:07,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 15 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:07,949 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 193 transitions. [2021-11-07 07:26:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 07:26:07,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:07,950 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:07,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:08,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:08,162 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:08,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:08,163 INFO L85 PathProgramCache]: Analyzing trace with hash -562086046, now seen corresponding path program 10 times [2021-11-07 07:26:08,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:08,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515277124] [2021-11-07 07:26:08,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:08,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:08,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:08,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515277124] [2021-11-07 07:26:08,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515277124] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:08,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734468736] [2021-11-07 07:26:08,332 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:26:08,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:08,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:08,338 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:08,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-07 07:26:08,754 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:26:08,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:08,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-07 07:26:08,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:09,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734468736] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:09,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:09,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-11-07 07:26:09,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679383195] [2021-11-07 07:26:09,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 07:26:09,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:09,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 07:26:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:26:09,347 INFO L87 Difference]: Start difference. First operand 172 states and 193 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:09,711 INFO L93 Difference]: Finished difference Result 277 states and 316 transitions. [2021-11-07 07:26:09,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:26:09,714 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 07:26:09,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:09,715 INFO L225 Difference]: With dead ends: 277 [2021-11-07 07:26:09,716 INFO L226 Difference]: Without dead ends: 174 [2021-11-07 07:26:09,716 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 67 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:26:09,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-07 07:26:09,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2021-11-07 07:26:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 153 states have (on average 1.2549019607843137) internal successors, (192), 171 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:09,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 192 transitions. [2021-11-07 07:26:09,728 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 192 transitions. Word has length 77 [2021-11-07 07:26:09,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:09,729 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 192 transitions. [2021-11-07 07:26:09,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:09,729 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 192 transitions. [2021-11-07 07:26:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:26:09,732 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:09,732 INFO L513 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:09,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:09,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:09,933 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:09,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1069919159, now seen corresponding path program 11 times [2021-11-07 07:26:09,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:09,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763402859] [2021-11-07 07:26:09,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:09,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:10,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:10,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763402859] [2021-11-07 07:26:10,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763402859] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:10,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116855852] [2021-11-07 07:26:10,085 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:26:10,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:10,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:10,086 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:10,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-07 07:26:10,692 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-11-07 07:26:10,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:10,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:26:10,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:10,903 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:10,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116855852] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:10,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:10,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-11-07 07:26:10,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41623046] [2021-11-07 07:26:10,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 07:26:10,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:10,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 07:26:10,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-07 07:26:10,907 INFO L87 Difference]: Start difference. First operand 172 states and 192 transitions. Second operand has 16 states, 16 states have (on average 5.375) internal successors, (86), 16 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:11,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:11,018 INFO L93 Difference]: Finished difference Result 326 states and 369 transitions. [2021-11-07 07:26:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 07:26:11,019 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.375) internal successors, (86), 16 states have internal predecessors, (86), 0 states have call successors, (0), 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 79 [2021-11-07 07:26:11,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:11,020 INFO L225 Difference]: With dead ends: 326 [2021-11-07 07:26:11,020 INFO L226 Difference]: Without dead ends: 228 [2021-11-07 07:26:11,022 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-07 07:26:11,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-07 07:26:11,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 177. [2021-11-07 07:26:11,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.2531645569620253) internal successors, (198), 176 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:11,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 198 transitions. [2021-11-07 07:26:11,032 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 198 transitions. Word has length 79 [2021-11-07 07:26:11,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:11,033 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 198 transitions. [2021-11-07 07:26:11,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.375) internal successors, (86), 16 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 198 transitions. [2021-11-07 07:26:11,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 07:26:11,034 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:11,034 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:11,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:11,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-07 07:26:11,242 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:11,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:11,243 INFO L85 PathProgramCache]: Analyzing trace with hash -510042405, now seen corresponding path program 11 times [2021-11-07 07:26:11,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:11,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140131835] [2021-11-07 07:26:11,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:11,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:11,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:11,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140131835] [2021-11-07 07:26:11,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140131835] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:11,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782397472] [2021-11-07 07:26:11,477 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:26:11,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:11,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:11,478 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:11,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-07 07:26:12,170 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-07 07:26:12,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:12,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-07 07:26:12,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:12,785 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:12,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782397472] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:12,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:12,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-11-07 07:26:12,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417737350] [2021-11-07 07:26:12,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 07:26:12,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:12,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 07:26:12,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-07 07:26:12,788 INFO L87 Difference]: Start difference. First operand 177 states and 198 transitions. Second operand has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:13,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:13,161 INFO L93 Difference]: Finished difference Result 282 states and 321 transitions. [2021-11-07 07:26:13,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 07:26:13,161 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 07:26:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:13,163 INFO L225 Difference]: With dead ends: 282 [2021-11-07 07:26:13,163 INFO L226 Difference]: Without dead ends: 179 [2021-11-07 07:26:13,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 71 SyntacticMatches, 11 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-07 07:26:13,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-11-07 07:26:13,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2021-11-07 07:26:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.2468354430379747) internal successors, (197), 176 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 197 transitions. [2021-11-07 07:26:13,174 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 197 transitions. Word has length 82 [2021-11-07 07:26:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:13,174 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 197 transitions. [2021-11-07 07:26:13,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:13,174 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 197 transitions. [2021-11-07 07:26:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:26:13,175 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:13,176 INFO L513 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:13,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:13,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:13,402 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:13,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:13,403 INFO L85 PathProgramCache]: Analyzing trace with hash -455749392, now seen corresponding path program 12 times [2021-11-07 07:26:13,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:13,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944182845] [2021-11-07 07:26:13,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:13,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:13,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:13,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944182845] [2021-11-07 07:26:13,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944182845] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:13,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201079838] [2021-11-07 07:26:13,563 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:26:13,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:13,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:13,565 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:13,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-07 07:26:14,290 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-11-07 07:26:14,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:14,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 07:26:14,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:14,520 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:14,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201079838] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:14,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:14,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-11-07 07:26:14,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306255671] [2021-11-07 07:26:14,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 07:26:14,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:14,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 07:26:14,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:26:14,522 INFO L87 Difference]: Start difference. First operand 177 states and 197 transitions. Second operand has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:14,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:14,671 INFO L93 Difference]: Finished difference Result 331 states and 374 transitions. [2021-11-07 07:26:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 07:26:14,672 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 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 84 [2021-11-07 07:26:14,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:14,673 INFO L225 Difference]: With dead ends: 331 [2021-11-07 07:26:14,673 INFO L226 Difference]: Without dead ends: 233 [2021-11-07 07:26:14,674 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:26:14,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-07 07:26:14,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 182. [2021-11-07 07:26:14,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 163 states have (on average 1.2453987730061349) internal successors, (203), 181 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 203 transitions. [2021-11-07 07:26:14,683 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 203 transitions. Word has length 84 [2021-11-07 07:26:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:14,684 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 203 transitions. [2021-11-07 07:26:14,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 203 transitions. [2021-11-07 07:26:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 07:26:14,685 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:14,685 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:14,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:14,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:14,892 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:14,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:14,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1937048322, now seen corresponding path program 12 times [2021-11-07 07:26:14,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:14,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473935456] [2021-11-07 07:26:14,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:14,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:15,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:15,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473935456] [2021-11-07 07:26:15,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473935456] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:15,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808601560] [2021-11-07 07:26:15,107 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:26:15,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:15,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:15,108 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:15,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-07 07:26:15,848 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-11-07 07:26:15,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:15,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-07 07:26:15,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:16,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808601560] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:16,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:16,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-11-07 07:26:16,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837694909] [2021-11-07 07:26:16,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 07:26:16,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:16,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 07:26:16,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:26:16,492 INFO L87 Difference]: Start difference. First operand 182 states and 203 transitions. Second operand has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:16,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:16,945 INFO L93 Difference]: Finished difference Result 287 states and 326 transitions. [2021-11-07 07:26:16,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 07:26:16,945 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 07:26:16,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:16,947 INFO L225 Difference]: With dead ends: 287 [2021-11-07 07:26:16,947 INFO L226 Difference]: Without dead ends: 184 [2021-11-07 07:26:16,948 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 12 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:26:16,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-07 07:26:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2021-11-07 07:26:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 163 states have (on average 1.2392638036809815) internal successors, (202), 181 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 202 transitions. [2021-11-07 07:26:16,958 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 202 transitions. Word has length 87 [2021-11-07 07:26:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:16,958 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 202 transitions. [2021-11-07 07:26:16,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:16,958 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 202 transitions. [2021-11-07 07:26:16,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 07:26:16,959 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:16,960 INFO L513 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:17,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:17,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-07 07:26:17,160 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:17,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:17,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1851328343, now seen corresponding path program 13 times [2021-11-07 07:26:17,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:17,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421690467] [2021-11-07 07:26:17,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:17,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:17,335 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:17,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:17,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421690467] [2021-11-07 07:26:17,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421690467] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:17,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261225850] [2021-11-07 07:26:17,337 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:26:17,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:17,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:17,339 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:17,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-07 07:26:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:17,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 07:26:17,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:18,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261225850] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:18,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:18,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-11-07 07:26:18,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755127098] [2021-11-07 07:26:18,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 07:26:18,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:18,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 07:26:18,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-07 07:26:18,168 INFO L87 Difference]: Start difference. First operand 182 states and 202 transitions. Second operand has 18 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:18,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:18,308 INFO L93 Difference]: Finished difference Result 336 states and 379 transitions. [2021-11-07 07:26:18,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 07:26:18,311 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 0 states have call successors, (0), 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 89 [2021-11-07 07:26:18,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:18,312 INFO L225 Difference]: With dead ends: 336 [2021-11-07 07:26:18,312 INFO L226 Difference]: Without dead ends: 238 [2021-11-07 07:26:18,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-07 07:26:18,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-11-07 07:26:18,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 187. [2021-11-07 07:26:18,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 168 states have (on average 1.2380952380952381) internal successors, (208), 186 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:18,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 208 transitions. [2021-11-07 07:26:18,323 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 208 transitions. Word has length 89 [2021-11-07 07:26:18,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:18,324 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 208 transitions. [2021-11-07 07:26:18,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:18,324 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 208 transitions. [2021-11-07 07:26:18,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 07:26:18,325 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:18,325 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:18,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:18,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-07 07:26:18,538 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:18,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:18,539 INFO L85 PathProgramCache]: Analyzing trace with hash -271786181, now seen corresponding path program 13 times [2021-11-07 07:26:18,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:18,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570459320] [2021-11-07 07:26:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:18,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:18,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:18,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570459320] [2021-11-07 07:26:18,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570459320] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:18,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11718057] [2021-11-07 07:26:18,792 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:26:18,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:18,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:18,793 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:18,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-07 07:26:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:19,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-07 07:26:19,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:20,125 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:20,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11718057] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:20,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:20,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-11-07 07:26:20,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572036951] [2021-11-07 07:26:20,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 07:26:20,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:20,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 07:26:20,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-11-07 07:26:20,127 INFO L87 Difference]: Start difference. First operand 187 states and 208 transitions. Second operand has 18 states, 18 states have (on average 5.222222222222222) internal successors, (94), 18 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:20,486 INFO L93 Difference]: Finished difference Result 292 states and 331 transitions. [2021-11-07 07:26:20,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 07:26:20,487 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.222222222222222) internal successors, (94), 18 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-07 07:26:20,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:20,488 INFO L225 Difference]: With dead ends: 292 [2021-11-07 07:26:20,488 INFO L226 Difference]: Without dead ends: 189 [2021-11-07 07:26:20,489 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 79 SyntacticMatches, 13 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-11-07 07:26:20,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-07 07:26:20,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2021-11-07 07:26:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 186 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:20,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 207 transitions. [2021-11-07 07:26:20,498 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 207 transitions. Word has length 92 [2021-11-07 07:26:20,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:20,499 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 207 transitions. [2021-11-07 07:26:20,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.222222222222222) internal successors, (94), 18 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:20,499 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 207 transitions. [2021-11-07 07:26:20,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 07:26:20,500 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:20,500 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:20,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:20,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-07 07:26:20,720 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:20,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:20,720 INFO L85 PathProgramCache]: Analyzing trace with hash 875215184, now seen corresponding path program 14 times [2021-11-07 07:26:20,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:20,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101380005] [2021-11-07 07:26:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:20,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:20,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:20,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101380005] [2021-11-07 07:26:20,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101380005] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:20,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708445003] [2021-11-07 07:26:20,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:26:20,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:20,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:20,894 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:20,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-07 07:26:21,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:26:21,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:21,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 07:26:21,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:21,819 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:21,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708445003] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:21,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:21,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-11-07 07:26:21,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954915281] [2021-11-07 07:26:21,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 07:26:21,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:21,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 07:26:21,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-07 07:26:21,823 INFO L87 Difference]: Start difference. First operand 187 states and 207 transitions. Second operand has 19 states, 19 states have (on average 5.315789473684211) internal successors, (101), 19 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:21,973 INFO L93 Difference]: Finished difference Result 341 states and 384 transitions. [2021-11-07 07:26:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:26:21,974 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.315789473684211) internal successors, (101), 19 states have internal predecessors, (101), 0 states have call successors, (0), 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 94 [2021-11-07 07:26:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:21,975 INFO L225 Difference]: With dead ends: 341 [2021-11-07 07:26:21,975 INFO L226 Difference]: Without dead ends: 243 [2021-11-07 07:26:21,976 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-07 07:26:21,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-07 07:26:21,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 192. [2021-11-07 07:26:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 173 states have (on average 1.23121387283237) internal successors, (213), 191 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 213 transitions. [2021-11-07 07:26:21,985 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 213 transitions. Word has length 94 [2021-11-07 07:26:21,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:21,986 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 213 transitions. [2021-11-07 07:26:21,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.315789473684211) internal successors, (101), 19 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:21,986 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 213 transitions. [2021-11-07 07:26:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 07:26:21,987 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:21,987 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:22,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:22,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-07 07:26:22,213 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:22,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:22,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1564655266, now seen corresponding path program 14 times [2021-11-07 07:26:22,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:22,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390616604] [2021-11-07 07:26:22,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:22,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:22,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:22,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390616604] [2021-11-07 07:26:22,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390616604] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:22,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388826568] [2021-11-07 07:26:22,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:26:22,487 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:22,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:22,494 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:22,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-07 07:26:23,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:26:23,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:23,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-07 07:26:23,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:24,023 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:24,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388826568] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:24,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:24,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-11-07 07:26:24,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672166864] [2021-11-07 07:26:24,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 07:26:24,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:24,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 07:26:24,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-11-07 07:26:24,026 INFO L87 Difference]: Start difference. First operand 192 states and 213 transitions. Second operand has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 19 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:24,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:24,501 INFO L93 Difference]: Finished difference Result 297 states and 336 transitions. [2021-11-07 07:26:24,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:26:24,501 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 19 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-07 07:26:24,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:24,503 INFO L225 Difference]: With dead ends: 297 [2021-11-07 07:26:24,503 INFO L226 Difference]: Without dead ends: 194 [2021-11-07 07:26:24,503 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 14 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-11-07 07:26:24,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-07 07:26:24,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2021-11-07 07:26:24,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 173 states have (on average 1.2254335260115607) internal successors, (212), 191 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:24,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 212 transitions. [2021-11-07 07:26:24,514 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 212 transitions. Word has length 97 [2021-11-07 07:26:24,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:24,514 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 212 transitions. [2021-11-07 07:26:24,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 19 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 212 transitions. [2021-11-07 07:26:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-07 07:26:24,516 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:24,516 INFO L513 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:24,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:24,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-07 07:26:24,738 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:24,739 INFO L85 PathProgramCache]: Analyzing trace with hash 463887095, now seen corresponding path program 15 times [2021-11-07 07:26:24,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:24,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539660457] [2021-11-07 07:26:24,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:24,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:24,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:24,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539660457] [2021-11-07 07:26:24,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539660457] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:24,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822091892] [2021-11-07 07:26:24,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:26:24,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:24,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:24,990 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:25,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-07 07:26:26,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-11-07 07:26:26,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:26,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 07:26:26,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:26,424 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:26,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822091892] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:26,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:26,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-11-07 07:26:26,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642689731] [2021-11-07 07:26:26,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 07:26:26,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 07:26:26,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-07 07:26:26,426 INFO L87 Difference]: Start difference. First operand 192 states and 212 transitions. Second operand has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:26,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:26,549 INFO L93 Difference]: Finished difference Result 346 states and 389 transitions. [2021-11-07 07:26:26,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 07:26:26,549 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 0 states have call successors, (0), 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 99 [2021-11-07 07:26:26,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:26,551 INFO L225 Difference]: With dead ends: 346 [2021-11-07 07:26:26,551 INFO L226 Difference]: Without dead ends: 248 [2021-11-07 07:26:26,551 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-07 07:26:26,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-07 07:26:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 197. [2021-11-07 07:26:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 178 states have (on average 1.2247191011235956) internal successors, (218), 196 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:26,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2021-11-07 07:26:26,560 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 99 [2021-11-07 07:26:26,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:26,561 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2021-11-07 07:26:26,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2021-11-07 07:26:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-07 07:26:26,562 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:26,562 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:26,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:26,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-07 07:26:26,770 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1231251355, now seen corresponding path program 15 times [2021-11-07 07:26:26,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:26,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251580039] [2021-11-07 07:26:26,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:26,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:27,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:27,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251580039] [2021-11-07 07:26:27,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251580039] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:27,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327533061] [2021-11-07 07:26:27,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:26:27,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:27,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:27,022 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:27,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-07 07:26:28,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-07 07:26:28,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:28,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-07 07:26:28,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:28,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327533061] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:28,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:28,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-11-07 07:26:28,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415532394] [2021-11-07 07:26:28,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 07:26:28,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:28,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 07:26:28,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-11-07 07:26:28,991 INFO L87 Difference]: Start difference. First operand 197 states and 218 transitions. Second operand has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:29,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:29,319 INFO L93 Difference]: Finished difference Result 302 states and 341 transitions. [2021-11-07 07:26:29,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 07:26:29,321 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-11-07 07:26:29,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:29,322 INFO L225 Difference]: With dead ends: 302 [2021-11-07 07:26:29,322 INFO L226 Difference]: Without dead ends: 199 [2021-11-07 07:26:29,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 87 SyntacticMatches, 15 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-11-07 07:26:29,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-07 07:26:29,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2021-11-07 07:26:29,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 178 states have (on average 1.2191011235955056) internal successors, (217), 196 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:29,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 217 transitions. [2021-11-07 07:26:29,334 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 217 transitions. Word has length 102 [2021-11-07 07:26:29,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:29,335 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 217 transitions. [2021-11-07 07:26:29,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:29,335 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 217 transitions. [2021-11-07 07:26:29,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 07:26:29,336 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:29,337 INFO L513 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:29,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:29,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-11-07 07:26:29,544 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:29,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:29,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2109691472, now seen corresponding path program 16 times [2021-11-07 07:26:29,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:29,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736642123] [2021-11-07 07:26:29,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:29,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:29,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:29,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736642123] [2021-11-07 07:26:29,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736642123] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:29,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112211917] [2021-11-07 07:26:29,799 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:26:29,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:29,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:29,806 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:29,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-07 07:26:30,696 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:26:30,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:30,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 07:26:30,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:31,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112211917] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:31,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:31,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-11-07 07:26:31,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172160853] [2021-11-07 07:26:31,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 07:26:31,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:31,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 07:26:31,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:26:31,032 INFO L87 Difference]: Start difference. First operand 197 states and 217 transitions. Second operand has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 21 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:31,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:31,212 INFO L93 Difference]: Finished difference Result 351 states and 394 transitions. [2021-11-07 07:26:31,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 07:26:31,213 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 21 states have internal predecessors, (111), 0 states have call successors, (0), 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 104 [2021-11-07 07:26:31,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:31,214 INFO L225 Difference]: With dead ends: 351 [2021-11-07 07:26:31,214 INFO L226 Difference]: Without dead ends: 253 [2021-11-07 07:26:31,215 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:26:31,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-07 07:26:31,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 202. [2021-11-07 07:26:31,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 183 states have (on average 1.2185792349726776) internal successors, (223), 201 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 223 transitions. [2021-11-07 07:26:31,225 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 223 transitions. Word has length 104 [2021-11-07 07:26:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:31,226 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 223 transitions. [2021-11-07 07:26:31,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 21 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 223 transitions. [2021-11-07 07:26:31,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-07 07:26:31,226 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:31,226 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:31,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:31,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:31,427 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:31,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:31,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1213362754, now seen corresponding path program 16 times [2021-11-07 07:26:31,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:31,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812872869] [2021-11-07 07:26:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:31,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:31,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:31,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812872869] [2021-11-07 07:26:31,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812872869] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:31,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866702076] [2021-11-07 07:26:31,713 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:26:31,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:31,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:31,714 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:31,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-07 07:26:32,616 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:26:32,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:32,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-07 07:26:32,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:33,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866702076] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:33,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:33,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-11-07 07:26:33,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186132260] [2021-11-07 07:26:33,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 07:26:33,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:33,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 07:26:33,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:26:33,522 INFO L87 Difference]: Start difference. First operand 202 states and 223 transitions. Second operand has 21 states, 21 states have (on average 5.190476190476191) internal successors, (109), 21 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:33,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:33,915 INFO L93 Difference]: Finished difference Result 307 states and 346 transitions. [2021-11-07 07:26:33,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 07:26:33,915 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.190476190476191) internal successors, (109), 21 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-07 07:26:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:33,917 INFO L225 Difference]: With dead ends: 307 [2021-11-07 07:26:33,917 INFO L226 Difference]: Without dead ends: 204 [2021-11-07 07:26:33,917 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 91 SyntacticMatches, 16 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:26:33,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-07 07:26:33,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2021-11-07 07:26:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 183 states have (on average 1.2131147540983607) internal successors, (222), 201 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 222 transitions. [2021-11-07 07:26:33,927 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 222 transitions. Word has length 107 [2021-11-07 07:26:33,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:33,928 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 222 transitions. [2021-11-07 07:26:33,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.190476190476191) internal successors, (109), 21 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:33,928 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 222 transitions. [2021-11-07 07:26:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-07 07:26:33,929 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:33,929 INFO L513 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:33,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:34,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:34,146 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:34,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2120767849, now seen corresponding path program 17 times [2021-11-07 07:26:34,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:34,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276025256] [2021-11-07 07:26:34,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:34,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:34,364 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:34,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:34,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276025256] [2021-11-07 07:26:34,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276025256] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:34,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885243914] [2021-11-07 07:26:34,364 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:26:34,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:34,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:34,365 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:34,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-07 07:26:35,272 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-11-07 07:26:35,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:35,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-07 07:26:35,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:35,588 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:35,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885243914] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:35,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:35,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-11-07 07:26:35,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939679480] [2021-11-07 07:26:35,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-07 07:26:35,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:35,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-07 07:26:35,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:26:35,590 INFO L87 Difference]: Start difference. First operand 202 states and 222 transitions. Second operand has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 22 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:35,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:35,759 INFO L93 Difference]: Finished difference Result 356 states and 399 transitions. [2021-11-07 07:26:35,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 07:26:35,760 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 22 states have internal predecessors, (116), 0 states have call successors, (0), 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 109 [2021-11-07 07:26:35,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:35,762 INFO L225 Difference]: With dead ends: 356 [2021-11-07 07:26:35,762 INFO L226 Difference]: Without dead ends: 258 [2021-11-07 07:26:35,763 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:26:35,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-07 07:26:35,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 207. [2021-11-07 07:26:35,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 188 states have (on average 1.2127659574468086) internal successors, (228), 206 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:35,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 228 transitions. [2021-11-07 07:26:35,773 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 228 transitions. Word has length 109 [2021-11-07 07:26:35,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:35,774 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 228 transitions. [2021-11-07 07:26:35,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 22 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:35,774 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 228 transitions. [2021-11-07 07:26:35,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 07:26:35,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:35,776 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:35,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:36,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-11-07 07:26:36,002 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1949497339, now seen corresponding path program 17 times [2021-11-07 07:26:36,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:36,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930807590] [2021-11-07 07:26:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:36,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:36,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:36,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930807590] [2021-11-07 07:26:36,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930807590] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:36,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51833581] [2021-11-07 07:26:36,363 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:26:36,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:36,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:36,363 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:36,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-07 07:26:37,361 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-11-07 07:26:37,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:37,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-07 07:26:37,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:38,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51833581] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:38,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:38,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-11-07 07:26:38,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836085922] [2021-11-07 07:26:38,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-07 07:26:38,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:38,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-07 07:26:38,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:26:38,311 INFO L87 Difference]: Start difference. First operand 207 states and 228 transitions. Second operand has 22 states, 22 states have (on average 5.181818181818182) internal successors, (114), 22 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:38,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:38,871 INFO L93 Difference]: Finished difference Result 312 states and 351 transitions. [2021-11-07 07:26:38,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 07:26:38,872 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.181818181818182) internal successors, (114), 22 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-07 07:26:38,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:38,873 INFO L225 Difference]: With dead ends: 312 [2021-11-07 07:26:38,873 INFO L226 Difference]: Without dead ends: 209 [2021-11-07 07:26:38,873 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 95 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:26:38,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-07 07:26:38,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2021-11-07 07:26:38,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 188 states have (on average 1.2074468085106382) internal successors, (227), 206 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 227 transitions. [2021-11-07 07:26:38,883 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 227 transitions. Word has length 112 [2021-11-07 07:26:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:38,884 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 227 transitions. [2021-11-07 07:26:38,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.181818181818182) internal successors, (114), 22 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 227 transitions. [2021-11-07 07:26:38,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 07:26:38,885 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:38,885 INFO L513 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:38,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-11-07 07:26:39,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-11-07 07:26:39,090 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:39,091 INFO L85 PathProgramCache]: Analyzing trace with hash 929931792, now seen corresponding path program 18 times [2021-11-07 07:26:39,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:39,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028381375] [2021-11-07 07:26:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:39,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:39,335 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:39,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:39,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028381375] [2021-11-07 07:26:39,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028381375] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:39,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246143613] [2021-11-07 07:26:39,336 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:26:39,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:39,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:39,338 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:39,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-07 07:26:41,287 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2021-11-07 07:26:41,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:41,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 07:26:41,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:41,599 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:41,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246143613] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:41,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:41,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-11-07 07:26:41,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629749254] [2021-11-07 07:26:41,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 07:26:41,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:41,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 07:26:41,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:26:41,601 INFO L87 Difference]: Start difference. First operand 207 states and 227 transitions. Second operand has 23 states, 23 states have (on average 5.260869565217392) internal successors, (121), 23 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:41,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:41,748 INFO L93 Difference]: Finished difference Result 361 states and 404 transitions. [2021-11-07 07:26:41,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-07 07:26:41,749 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.260869565217392) internal successors, (121), 23 states have internal predecessors, (121), 0 states have call successors, (0), 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 114 [2021-11-07 07:26:41,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:41,750 INFO L225 Difference]: With dead ends: 361 [2021-11-07 07:26:41,750 INFO L226 Difference]: Without dead ends: 263 [2021-11-07 07:26:41,751 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:26:41,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-11-07 07:26:41,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 212. [2021-11-07 07:26:41,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 193 states have (on average 1.2072538860103628) internal successors, (233), 211 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 233 transitions. [2021-11-07 07:26:41,758 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 233 transitions. Word has length 114 [2021-11-07 07:26:41,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:41,759 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 233 transitions. [2021-11-07 07:26:41,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.260869565217392) internal successors, (121), 23 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:41,759 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 233 transitions. [2021-11-07 07:26:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 07:26:41,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:41,760 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:41,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:41,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-11-07 07:26:41,970 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:41,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:41,971 INFO L85 PathProgramCache]: Analyzing trace with hash -460448286, now seen corresponding path program 18 times [2021-11-07 07:26:41,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:41,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473222908] [2021-11-07 07:26:41,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:41,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:42,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:42,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473222908] [2021-11-07 07:26:42,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473222908] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:42,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233845201] [2021-11-07 07:26:42,297 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:26:42,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:42,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:42,298 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:42,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-07 07:26:44,265 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-11-07 07:26:44,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:44,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-07 07:26:44,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:45,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233845201] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:45,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:45,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-11-07 07:26:45,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194258798] [2021-11-07 07:26:45,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 07:26:45,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:45,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 07:26:45,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:26:45,271 INFO L87 Difference]: Start difference. First operand 212 states and 233 transitions. Second operand has 23 states, 23 states have (on average 5.173913043478261) internal successors, (119), 23 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:45,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:45,848 INFO L93 Difference]: Finished difference Result 317 states and 356 transitions. [2021-11-07 07:26:45,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-07 07:26:45,849 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.173913043478261) internal successors, (119), 23 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-07 07:26:45,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:45,850 INFO L225 Difference]: With dead ends: 317 [2021-11-07 07:26:45,850 INFO L226 Difference]: Without dead ends: 214 [2021-11-07 07:26:45,850 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 99 SyntacticMatches, 18 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:26:45,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-07 07:26:45,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 212. [2021-11-07 07:26:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 193 states have (on average 1.2020725388601037) internal successors, (232), 211 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 232 transitions. [2021-11-07 07:26:45,858 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 232 transitions. Word has length 117 [2021-11-07 07:26:45,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:45,858 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 232 transitions. [2021-11-07 07:26:45,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.173913043478261) internal successors, (119), 23 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:45,858 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 232 transitions. [2021-11-07 07:26:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-07 07:26:45,859 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:45,859 INFO L513 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:45,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2021-11-07 07:26:46,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:46,060 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:46,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:46,060 INFO L85 PathProgramCache]: Analyzing trace with hash -40441289, now seen corresponding path program 19 times [2021-11-07 07:26:46,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:46,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442069085] [2021-11-07 07:26:46,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:46,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:46,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:46,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442069085] [2021-11-07 07:26:46,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442069085] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:46,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319265636] [2021-11-07 07:26:46,344 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:26:46,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:46,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:46,345 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:46,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-07 07:26:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:47,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-07 07:26:47,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:47,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319265636] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:47,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:47,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-11-07 07:26:47,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838196954] [2021-11-07 07:26:47,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-07 07:26:47,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:47,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-07 07:26:47,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-07 07:26:47,751 INFO L87 Difference]: Start difference. First operand 212 states and 232 transitions. Second operand has 24 states, 24 states have (on average 5.25) internal successors, (126), 24 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:47,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:47,927 INFO L93 Difference]: Finished difference Result 366 states and 409 transitions. [2021-11-07 07:26:47,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:26:47,927 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.25) internal successors, (126), 24 states have internal predecessors, (126), 0 states have call successors, (0), 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 119 [2021-11-07 07:26:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:47,929 INFO L225 Difference]: With dead ends: 366 [2021-11-07 07:26:47,929 INFO L226 Difference]: Without dead ends: 268 [2021-11-07 07:26:47,929 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-07 07:26:47,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-11-07 07:26:47,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 217. [2021-11-07 07:26:47,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 198 states have (on average 1.202020202020202) internal successors, (238), 216 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:47,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 238 transitions. [2021-11-07 07:26:47,942 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 238 transitions. Word has length 119 [2021-11-07 07:26:47,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:47,943 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 238 transitions. [2021-11-07 07:26:47,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.25) internal successors, (126), 24 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:47,944 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 238 transitions. [2021-11-07 07:26:47,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-07 07:26:47,945 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:47,945 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:47,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-11-07 07:26:48,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-07 07:26:48,160 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:48,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:48,160 INFO L85 PathProgramCache]: Analyzing trace with hash 579965019, now seen corresponding path program 19 times [2021-11-07 07:26:48,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:48,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890540871] [2021-11-07 07:26:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:48,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:48,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:48,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890540871] [2021-11-07 07:26:48,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890540871] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:48,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448202231] [2021-11-07 07:26:48,601 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:26:48,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:48,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:48,602 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:48,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-07 07:26:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:49,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-07 07:26:49,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:50,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448202231] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:50,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:50,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-11-07 07:26:50,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035418986] [2021-11-07 07:26:50,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-07 07:26:50,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:50,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-07 07:26:50,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-11-07 07:26:50,862 INFO L87 Difference]: Start difference. First operand 217 states and 238 transitions. Second operand has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:51,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:51,538 INFO L93 Difference]: Finished difference Result 322 states and 361 transitions. [2021-11-07 07:26:51,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:26:51,538 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-07 07:26:51,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:51,540 INFO L225 Difference]: With dead ends: 322 [2021-11-07 07:26:51,540 INFO L226 Difference]: Without dead ends: 219 [2021-11-07 07:26:51,541 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 103 SyntacticMatches, 19 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-11-07 07:26:51,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-07 07:26:51,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2021-11-07 07:26:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 198 states have (on average 1.196969696969697) internal successors, (237), 216 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:51,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 237 transitions. [2021-11-07 07:26:51,551 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 237 transitions. Word has length 122 [2021-11-07 07:26:51,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:51,552 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 237 transitions. [2021-11-07 07:26:51,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:51,552 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 237 transitions. [2021-11-07 07:26:51,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 07:26:51,553 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:51,553 INFO L513 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:51,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-11-07 07:26:51,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:51,778 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:51,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:51,779 INFO L85 PathProgramCache]: Analyzing trace with hash -930635152, now seen corresponding path program 20 times [2021-11-07 07:26:51,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:51,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112238131] [2021-11-07 07:26:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:51,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:52,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:52,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112238131] [2021-11-07 07:26:52,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112238131] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:52,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483715758] [2021-11-07 07:26:52,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:26:52,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:52,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:52,090 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:52,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-07 07:26:53,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:26:53,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:53,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 07:26:53,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:53,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483715758] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:53,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:53,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-11-07 07:26:53,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948989568] [2021-11-07 07:26:53,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 07:26:53,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:53,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 07:26:53,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:26:53,629 INFO L87 Difference]: Start difference. First operand 217 states and 237 transitions. Second operand has 25 states, 25 states have (on average 5.24) internal successors, (131), 25 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:53,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:53,791 INFO L93 Difference]: Finished difference Result 371 states and 414 transitions. [2021-11-07 07:26:53,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 07:26:53,791 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.24) internal successors, (131), 25 states have internal predecessors, (131), 0 states have call successors, (0), 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 124 [2021-11-07 07:26:53,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:53,793 INFO L225 Difference]: With dead ends: 371 [2021-11-07 07:26:53,793 INFO L226 Difference]: Without dead ends: 273 [2021-11-07 07:26:53,793 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:26:53,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-11-07 07:26:53,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 222. [2021-11-07 07:26:53,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 221 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 243 transitions. [2021-11-07 07:26:53,801 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 243 transitions. Word has length 124 [2021-11-07 07:26:53,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:53,801 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 243 transitions. [2021-11-07 07:26:53,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.24) internal successors, (131), 25 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:53,802 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 243 transitions. [2021-11-07 07:26:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-07 07:26:53,802 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:53,803 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:53,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2021-11-07 07:26:54,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-11-07 07:26:54,005 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:54,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:54,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2057322110, now seen corresponding path program 20 times [2021-11-07 07:26:54,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:54,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510315907] [2021-11-07 07:26:54,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:54,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:54,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:54,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510315907] [2021-11-07 07:26:54,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510315907] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:54,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466449492] [2021-11-07 07:26:54,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:26:54,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:54,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:54,411 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:54,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-11-07 07:26:55,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:26:55,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:26:55,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-07 07:26:55,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:26:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:56,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466449492] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:56,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:26:56,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-11-07 07:26:56,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343772292] [2021-11-07 07:26:56,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 07:26:56,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:26:56,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 07:26:56,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:26:56,938 INFO L87 Difference]: Start difference. First operand 222 states and 243 transitions. Second operand has 25 states, 25 states have (on average 5.16) internal successors, (129), 25 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:57,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:26:57,593 INFO L93 Difference]: Finished difference Result 327 states and 366 transitions. [2021-11-07 07:26:57,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 07:26:57,593 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.16) internal successors, (129), 25 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-07 07:26:57,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:26:57,595 INFO L225 Difference]: With dead ends: 327 [2021-11-07 07:26:57,595 INFO L226 Difference]: Without dead ends: 224 [2021-11-07 07:26:57,595 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 107 SyntacticMatches, 20 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:26:57,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-11-07 07:26:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2021-11-07 07:26:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 203 states have (on average 1.1921182266009853) internal successors, (242), 221 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 242 transitions. [2021-11-07 07:26:57,603 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 242 transitions. Word has length 127 [2021-11-07 07:26:57,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:26:57,603 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 242 transitions. [2021-11-07 07:26:57,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.16) internal successors, (129), 25 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:26:57,604 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 242 transitions. [2021-11-07 07:26:57,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-07 07:26:57,605 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:26:57,605 INFO L513 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:26:57,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-11-07 07:26:57,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:57,810 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:26:57,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:26:57,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1332861481, now seen corresponding path program 21 times [2021-11-07 07:26:57,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:26:57,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502416149] [2021-11-07 07:26:57,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:26:57,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:26:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:26:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:26:58,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:26:58,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502416149] [2021-11-07 07:26:58,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502416149] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:26:58,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036751403] [2021-11-07 07:26:58,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:26:58,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:26:58,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:26:58,118 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:26:58,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-11-07 07:27:03,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-11-07 07:27:03,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:27:03,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 07:27:03,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:27:03,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:03,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036751403] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:27:03,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:27:03,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-11-07 07:27:03,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953743762] [2021-11-07 07:27:03,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-07 07:27:03,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:27:03,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-07 07:27:03,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-07 07:27:03,920 INFO L87 Difference]: Start difference. First operand 222 states and 242 transitions. Second operand has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:04,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:27:04,057 INFO L93 Difference]: Finished difference Result 376 states and 419 transitions. [2021-11-07 07:27:04,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-07 07:27:04,057 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 0 states have call successors, (0), 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 129 [2021-11-07 07:27:04,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:27:04,059 INFO L225 Difference]: With dead ends: 376 [2021-11-07 07:27:04,059 INFO L226 Difference]: Without dead ends: 278 [2021-11-07 07:27:04,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-07 07:27:04,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-07 07:27:04,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 227. [2021-11-07 07:27:04,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 208 states have (on average 1.1923076923076923) internal successors, (248), 226 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) [2021-11-07 07:27:04,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 248 transitions. [2021-11-07 07:27:04,068 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 248 transitions. Word has length 129 [2021-11-07 07:27:04,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:27:04,068 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 248 transitions. [2021-11-07 07:27:04,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:04,068 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 248 transitions. [2021-11-07 07:27:04,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-07 07:27:04,069 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:27:04,069 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:27:04,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-11-07 07:27:04,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:27:04,270 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:27:04,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:27:04,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1823133509, now seen corresponding path program 21 times [2021-11-07 07:27:04,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:27:04,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814973712] [2021-11-07 07:27:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:27:04,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:27:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:27:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:04,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:27:04,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814973712] [2021-11-07 07:27:04,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814973712] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:27:04,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948774736] [2021-11-07 07:27:04,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:27:04,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:27:04,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:27:04,734 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:27:04,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-11-07 07:27:06,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-11-07 07:27:06,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:27:06,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-07 07:27:06,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:27:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:08,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948774736] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:27:08,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:27:08,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-11-07 07:27:08,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746457620] [2021-11-07 07:27:08,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-07 07:27:08,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:27:08,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-07 07:27:08,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-11-07 07:27:08,288 INFO L87 Difference]: Start difference. First operand 227 states and 248 transitions. Second operand has 26 states, 26 states have (on average 5.153846153846154) internal successors, (134), 26 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:08,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:27:08,846 INFO L93 Difference]: Finished difference Result 332 states and 371 transitions. [2021-11-07 07:27:08,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-07 07:27:08,846 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.153846153846154) internal successors, (134), 26 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-07 07:27:08,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:27:08,847 INFO L225 Difference]: With dead ends: 332 [2021-11-07 07:27:08,848 INFO L226 Difference]: Without dead ends: 229 [2021-11-07 07:27:08,848 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 111 SyntacticMatches, 21 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-11-07 07:27:08,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-07 07:27:08,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2021-11-07 07:27:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 208 states have (on average 1.1875) internal successors, (247), 226 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) [2021-11-07 07:27:08,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 247 transitions. [2021-11-07 07:27:08,859 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 247 transitions. Word has length 132 [2021-11-07 07:27:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:27:08,860 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 247 transitions. [2021-11-07 07:27:08,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.153846153846154) internal successors, (134), 26 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 247 transitions. [2021-11-07 07:27:08,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 07:27:08,861 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:27:08,861 INFO L513 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:27:08,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-11-07 07:27:09,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-11-07 07:27:09,072 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:27:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:27:09,073 INFO L85 PathProgramCache]: Analyzing trace with hash 384084688, now seen corresponding path program 22 times [2021-11-07 07:27:09,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:27:09,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659070473] [2021-11-07 07:27:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:27:09,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:27:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:27:09,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:09,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:27:09,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659070473] [2021-11-07 07:27:09,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659070473] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:27:09,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619564471] [2021-11-07 07:27:09,414 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:27:09,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:27:09,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:27:09,419 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:27:09,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-11-07 07:27:10,991 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:27:10,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:27:10,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-07 07:27:10,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:27:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:11,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619564471] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:27:11,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:27:11,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-11-07 07:27:11,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288096400] [2021-11-07 07:27:11,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-07 07:27:11,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:27:11,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-07 07:27:11,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:27:11,310 INFO L87 Difference]: Start difference. First operand 227 states and 247 transitions. Second operand has 27 states, 27 states have (on average 5.222222222222222) internal successors, (141), 27 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:27:11,453 INFO L93 Difference]: Finished difference Result 381 states and 424 transitions. [2021-11-07 07:27:11,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-07 07:27:11,454 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.222222222222222) internal successors, (141), 27 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-07 07:27:11,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:27:11,455 INFO L225 Difference]: With dead ends: 381 [2021-11-07 07:27:11,455 INFO L226 Difference]: Without dead ends: 283 [2021-11-07 07:27:11,455 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:27:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-07 07:27:11,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 232. [2021-11-07 07:27:11,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 213 states have (on average 1.187793427230047) internal successors, (253), 231 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:11,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 253 transitions. [2021-11-07 07:27:11,463 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 253 transitions. Word has length 134 [2021-11-07 07:27:11,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:27:11,463 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 253 transitions. [2021-11-07 07:27:11,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.222222222222222) internal successors, (141), 27 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:11,463 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 253 transitions. [2021-11-07 07:27:11,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-07 07:27:11,464 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:27:11,464 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:27:11,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-11-07 07:27:11,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-11-07 07:27:11,664 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:27:11,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:27:11,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1045340894, now seen corresponding path program 22 times [2021-11-07 07:27:11,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:27:11,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005802631] [2021-11-07 07:27:11,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:27:11,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:27:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:27:12,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:12,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:27:12,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005802631] [2021-11-07 07:27:12,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005802631] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:27:12,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315103675] [2021-11-07 07:27:12,094 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:27:12,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:27:12,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:27:12,100 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:27:12,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-07 07:27:13,646 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:27:13,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:27:13,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-07 07:27:13,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:27:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:15,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315103675] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:27:15,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:27:15,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-11-07 07:27:15,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735956248] [2021-11-07 07:27:15,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-07 07:27:15,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:27:15,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-07 07:27:15,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:27:15,050 INFO L87 Difference]: Start difference. First operand 232 states and 253 transitions. Second operand has 27 states, 27 states have (on average 5.148148148148148) internal successors, (139), 27 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:15,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:27:15,743 INFO L93 Difference]: Finished difference Result 337 states and 376 transitions. [2021-11-07 07:27:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-07 07:27:15,743 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.148148148148148) internal successors, (139), 27 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-11-07 07:27:15,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:27:15,746 INFO L225 Difference]: With dead ends: 337 [2021-11-07 07:27:15,746 INFO L226 Difference]: Without dead ends: 234 [2021-11-07 07:27:15,747 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 115 SyntacticMatches, 22 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:27:15,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-07 07:27:15,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 232. [2021-11-07 07:27:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 213 states have (on average 1.1830985915492958) internal successors, (252), 231 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:15,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 252 transitions. [2021-11-07 07:27:15,758 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 252 transitions. Word has length 137 [2021-11-07 07:27:15,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:27:15,759 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 252 transitions. [2021-11-07 07:27:15,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.148148148148148) internal successors, (139), 27 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:15,759 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 252 transitions. [2021-11-07 07:27:15,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-07 07:27:15,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:27:15,760 INFO L513 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:27:15,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-11-07 07:27:15,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:27:15,978 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:27:15,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:27:15,979 INFO L85 PathProgramCache]: Analyzing trace with hash 518478199, now seen corresponding path program 23 times [2021-11-07 07:27:15,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:27:15,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942566322] [2021-11-07 07:27:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:27:15,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:27:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:27:16,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:16,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:27:16,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942566322] [2021-11-07 07:27:16,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942566322] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:27:16,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290976580] [2021-11-07 07:27:16,394 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:27:16,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:27:16,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:27:16,396 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:27:16,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-07 07:27:17,987 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2021-11-07 07:27:17,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:27:17,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-07 07:27:17,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:27:18,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:27:18,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290976580] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:27:18,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:27:18,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2021-11-07 07:27:18,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373597897] [2021-11-07 07:27:18,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-07 07:27:18,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:27:18,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-07 07:27:18,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-07 07:27:18,325 INFO L87 Difference]: Start difference. First operand 232 states and 252 transitions. Second operand has 28 states, 28 states have (on average 5.214285714285714) internal successors, (146), 28 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:18,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:27:18,485 INFO L93 Difference]: Finished difference Result 386 states and 429 transitions. [2021-11-07 07:27:18,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-07 07:27:18,486 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.214285714285714) internal successors, (146), 28 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-07 07:27:18,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:27:18,487 INFO L225 Difference]: With dead ends: 386 [2021-11-07 07:27:18,487 INFO L226 Difference]: Without dead ends: 288 [2021-11-07 07:27:18,488 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-07 07:27:18,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-07 07:27:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 237. [2021-11-07 07:27:18,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 218 states have (on average 1.18348623853211) internal successors, (258), 236 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:18,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 258 transitions. [2021-11-07 07:27:18,498 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 258 transitions. Word has length 139 [2021-11-07 07:27:18,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:27:18,499 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 258 transitions. [2021-11-07 07:27:18,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.214285714285714) internal successors, (146), 28 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:27:18,499 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 258 transitions. [2021-11-07 07:27:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 07:27:18,500 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:27:18,500 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:27:18,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-11-07 07:27:18,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:27:18,701 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-11-07 07:27:18,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:27:18,701 INFO L85 PathProgramCache]: Analyzing trace with hash -237774565, now seen corresponding path program 23 times [2021-11-07 07:27:18,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:27:18,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36815210] [2021-11-07 07:27:18,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:27:18,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:27:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:27:18,779 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:27:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:27:18,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:27:18,874 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 07:27:18,875 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 07:27:18,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-07 07:27:18,891 INFO L731 BasicCegarLoop]: Path program histogram: [23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:27:18,894 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:27:18,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:27:18 BoogieIcfgContainer [2021-11-07 07:27:18,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:27:18,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:27:18,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:27:18,991 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:27:18,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:25:44" (3/4) ... [2021-11-07 07:27:18,995 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:27:18,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:27:18,997 INFO L168 Benchmark]: Toolchain (without parser) took 95488.47 ms. Allocated memory was 94.4 MB in the beginning and 717.2 MB in the end (delta: 622.9 MB). Free memory was 56.5 MB in the beginning and 217.4 MB in the end (delta: -160.9 MB). Peak memory consumption was 463.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:27:18,997 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory was 72.9 MB in the beginning and 72.8 MB in the end (delta: 58.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:27:18,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.26 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 56.3 MB in the beginning and 113.5 MB in the end (delta: -57.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2021-11-07 07:27:18,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.89 ms. Allocated memory is still 136.3 MB. Free memory was 113.5 MB in the beginning and 111.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:27:19,006 INFO L168 Benchmark]: Boogie Preprocessor took 32.96 ms. Allocated memory is still 136.3 MB. Free memory was 111.4 MB in the beginning and 109.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:27:19,007 INFO L168 Benchmark]: RCFGBuilder took 628.68 ms. Allocated memory is still 136.3 MB. Free memory was 109.3 MB in the beginning and 89.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-07 07:27:19,007 INFO L168 Benchmark]: TraceAbstraction took 94430.45 ms. Allocated memory was 136.3 MB in the beginning and 717.2 MB in the end (delta: 580.9 MB). Free memory was 88.4 MB in the beginning and 217.4 MB in the end (delta: -129.0 MB). Peak memory consumption was 451.8 MB. Max. memory is 16.1 GB. [2021-11-07 07:27:19,007 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 717.2 MB. Free memory is still 217.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:27:19,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory was 72.9 MB in the beginning and 72.8 MB in the end (delta: 58.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.26 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 56.3 MB in the beginning and 113.5 MB in the end (delta: -57.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.89 ms. Allocated memory is still 136.3 MB. Free memory was 113.5 MB in the beginning and 111.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.96 ms. Allocated memory is still 136.3 MB. Free memory was 111.4 MB in the beginning and 109.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 628.68 ms. Allocated memory is still 136.3 MB. Free memory was 109.3 MB in the beginning and 89.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 94430.45 ms. Allocated memory was 136.3 MB in the beginning and 717.2 MB in the end (delta: 580.9 MB). Free memory was 88.4 MB in the beginning and 217.4 MB in the end (delta: -129.0 MB). Peak memory consumption was 451.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.42 ms. Allocated memory is still 717.2 MB. Free memory is still 217.4 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 77, overapproximation of bitwiseAnd at line 76. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sa ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; [L25] unsigned int res ; [L26] unsigned int __retres4 ; [L29] COND TRUE ! m [L30] __retres4 = 0U [L80] return (__retres4); [L238] zero = base2flt(0, 0) [L25] unsigned int res ; [L26] unsigned int __retres4 ; [L29] COND FALSE !(! m) [L35] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND TRUE m < 1U << 24U [L37] COND TRUE 1 [L39] COND FALSE !(e <= -128) [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U [L47] COND FALSE !(m < 1U << 24U) [L76] m = m & ~ (1U << 24U) [L77] EXPR e + 128 [L77] EXPR (e + 128) << 24U [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res [L80] return (__retres4); [L239] one = base2flt(1, 0) [L25] unsigned int res ; [L26] unsigned int __retres4 ; [L29] COND FALSE !(! m) [L35] COND FALSE !(m < 1U << 24U) [L57] COND TRUE 1 [L59] COND FALSE !(m >= 1U << 25U) [L76] m = m & ~ (1U << 24U) [L77] EXPR e + 128 [L77] (e + 128) << 24U - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: 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, 163 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 94.2s, OverallIterations: 57, TraceHistogramMax: 25, PathProgramHistogramMax: 23, EmptinessCheckTime: 0.0s, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8543 SDtfs, 6678 SDslu, 35807 SDs, 0 SdLazy, 19627 SolverSat, 1029 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4492 GetRequests, 3555 SyntacticMatches, 253 SemanticMatches, 684 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=56, InterpolantAutomatonStates: 793, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 56 MinimizatonAttempts, 1552 StatesRemovedByMinimization, 53 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 12.2s SatisfiabilityAnalysisTime, 29.6s InterpolantComputationTime, 7905 NumberOfCodeBlocks, 7905 NumberOfCodeBlocksAsserted, 386 NumberOfCheckSat, 7662 ConstructedInterpolants, 0 QuantifiedInterpolants, 36376 SizeOfPredicates, 67 NumberOfNonLiveVariables, 9417 ConjunctsInSsa, 1032 ConjunctsInUnsatCore, 101 InterpolantComputations, 11 PerfectInterpolantSequences, 5/44441 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 [2021-11-07 07:27:19,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a2d61e-c1ff-466d-a44a-c9c75dca9969/bin/uautomizer-AkOaLMaTGY/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