./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c9a431cc3dce37048e7415db5e7aefee11ebb182 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:04:09,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:04:09,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:04:10,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:04:10,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:04:10,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:04:10,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:04:10,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:04:10,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:04:10,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:04:10,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:04:10,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:04:10,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:04:10,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:04:10,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:04:10,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:04:10,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:04:10,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:04:10,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:04:10,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:04:10,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:04:10,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:04:10,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:04:10,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:04:10,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:04:10,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:04:10,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:04:10,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:04:10,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:04:10,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:04:10,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:04:10,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:04:10,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:04:10,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:04:10,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:04:10,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:04:10,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:04:10,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:04:10,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:04:10,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:04:10,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:04:10,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:04:10,092 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:04:10,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:04:10,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:04:10,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:04:10,095 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:04:10,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:04:10,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:04:10,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:04:10,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:04:10,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:04:10,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:04:10,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:04:10,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:04:10,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:04:10,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:04:10,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:04:10,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:04:10,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:04:10,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:04:10,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:04:10,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:04:10,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:04:10,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:04:10,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:04:10,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:04:10,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:04:10,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:04:10,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:04:10,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:04:10,103 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-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9a431cc3dce37048e7415db5e7aefee11ebb182 [2020-11-30 01:04:10,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:04:10,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:04:10,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:04:10,363 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:04:10,366 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:04:10,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2020-11-30 01:04:10,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/data/4b1017ba1/27d949b75a07438d9e9d15c0b0639b55/FLAGc4e6ae8ef [2020-11-30 01:04:10,880 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:04:10,881 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2020-11-30 01:04:10,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/data/4b1017ba1/27d949b75a07438d9e9d15c0b0639b55/FLAGc4e6ae8ef [2020-11-30 01:04:11,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/data/4b1017ba1/27d949b75a07438d9e9d15c0b0639b55 [2020-11-30 01:04:11,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:04:11,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:04:11,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:04:11,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:04:11,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:04:11,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc4d536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11, skipping insertion in model container [2020-11-30 01:04:11,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:04:11,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:04:11,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:04:11,550 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:04:11,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:04:11,582 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:04:11,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11 WrapperNode [2020-11-30 01:04:11,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:04:11,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:04:11,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:04:11,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:04:11,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:04:11,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:04:11,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:04:11,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:04:11,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... [2020-11-30 01:04:11,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:04:11,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:04:11,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:04:11,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:04:11,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:04:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:04:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:04:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:04:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:04:12,064 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:04:12,065 INFO L298 CfgBuilder]: Removed 35 assume(true) statements. [2020-11-30 01:04:12,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:04:12 BoogieIcfgContainer [2020-11-30 01:04:12,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:04:12,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:04:12,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:04:12,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:04:12,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:04:11" (1/3) ... [2020-11-30 01:04:12,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5329393c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:04:12, skipping insertion in model container [2020-11-30 01:04:12,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:11" (2/3) ... [2020-11-30 01:04:12,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5329393c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:04:12, skipping insertion in model container [2020-11-30 01:04:12,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:04:12" (3/3) ... [2020-11-30 01:04:12,078 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound2.c [2020-11-30 01:04:12,087 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:04:12,090 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-30 01:04:12,100 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-30 01:04:12,123 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:04:12,123 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:04:12,123 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:04:12,124 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:04:12,124 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:04:12,124 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:04:12,129 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:04:12,129 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:04:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-11-30 01:04:12,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:04:12,148 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:12,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:12,150 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:12,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:12,155 INFO L82 PathProgramCache]: Analyzing trace with hash -171753097, now seen corresponding path program 1 times [2020-11-30 01:04:12,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:12,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273825646] [2020-11-30 01:04:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:12,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273825646] [2020-11-30 01:04:12,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:12,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:04:12,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401433] [2020-11-30 01:04:12,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:04:12,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:12,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:04:12,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:04:12,304 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2020-11-30 01:04:12,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:12,323 INFO L93 Difference]: Finished difference Result 79 states and 112 transitions. [2020-11-30 01:04:12,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:04:12,324 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-11-30 01:04:12,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:12,348 INFO L225 Difference]: With dead ends: 79 [2020-11-30 01:04:12,349 INFO L226 Difference]: Without dead ends: 37 [2020-11-30 01:04:12,351 INFO L677 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 [2020-11-30 01:04:12,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-30 01:04:12,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-30 01:04:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 01:04:12,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-11-30 01:04:12,387 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 14 [2020-11-30 01:04:12,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:12,387 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-11-30 01:04:12,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:04:12,389 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-11-30 01:04:12,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:04:12,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:12,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:12,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:04:12,391 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:12,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:12,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1454174487, now seen corresponding path program 1 times [2020-11-30 01:04:12,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:12,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623549219] [2020-11-30 01:04:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:12,428 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:12,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629661428] [2020-11-30 01:04:12,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:12,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:04:12,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:12,637 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:12,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:12,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:12,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623549219] [2020-11-30 01:04:12,669 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:12,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629661428] [2020-11-30 01:04:12,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:12,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:04:12,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776627761] [2020-11-30 01:04:12,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:04:12,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:12,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:04:12,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:04:12,672 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 5 states. [2020-11-30 01:04:12,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:12,837 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2020-11-30 01:04:12,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:04:12,839 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-30 01:04:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:12,840 INFO L225 Difference]: With dead ends: 64 [2020-11-30 01:04:12,840 INFO L226 Difference]: Without dead ends: 60 [2020-11-30 01:04:12,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:04:12,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-30 01:04:12,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 39. [2020-11-30 01:04:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 01:04:12,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-11-30 01:04:12,858 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 15 [2020-11-30 01:04:12,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:12,858 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-11-30 01:04:12,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:04:12,858 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-11-30 01:04:12,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:04:12,859 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:12,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:13,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 01:04:13,089 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:13,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:13,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1580206288, now seen corresponding path program 1 times [2020-11-30 01:04:13,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:13,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521759610] [2020-11-30 01:04:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:13,114 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:13,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519895657] [2020-11-30 01:04:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:13,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-30 01:04:13,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:13,218 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:13,218 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:13,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521759610] [2020-11-30 01:04:13,273 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:13,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519895657] [2020-11-30 01:04:13,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:13,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:04:13,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855189103] [2020-11-30 01:04:13,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:04:13,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:13,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:04:13,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:04:13,276 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2020-11-30 01:04:13,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:13,488 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2020-11-30 01:04:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:04:13,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 01:04:13,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:13,492 INFO L225 Difference]: With dead ends: 60 [2020-11-30 01:04:13,492 INFO L226 Difference]: Without dead ends: 58 [2020-11-30 01:04:13,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:04:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-30 01:04:13,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2020-11-30 01:04:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-30 01:04:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-11-30 01:04:13,501 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 17 [2020-11-30 01:04:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:13,502 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-11-30 01:04:13,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:04:13,502 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-11-30 01:04:13,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:04:13,503 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:13,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:13,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:13,717 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:13,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:13,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1839991917, now seen corresponding path program 1 times [2020-11-30 01:04:13,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:13,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806109441] [2020-11-30 01:04:13,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:13,737 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:13,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186082928] [2020-11-30 01:04:13,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:13,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 01:04:13,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:13,810 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:13,810 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:13,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806109441] [2020-11-30 01:04:13,935 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:13,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186082928] [2020-11-30 01:04:13,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:13,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 01:04:13,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756562974] [2020-11-30 01:04:13,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:04:13,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:13,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:04:13,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:04:13,937 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 8 states. [2020-11-30 01:04:14,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:14,372 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2020-11-30 01:04:14,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 01:04:14,373 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-11-30 01:04:14,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:14,374 INFO L225 Difference]: With dead ends: 75 [2020-11-30 01:04:14,374 INFO L226 Difference]: Without dead ends: 73 [2020-11-30 01:04:14,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:04:14,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-30 01:04:14,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 51. [2020-11-30 01:04:14,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-30 01:04:14,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2020-11-30 01:04:14,390 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 19 [2020-11-30 01:04:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:14,390 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2020-11-30 01:04:14,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:04:14,390 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2020-11-30 01:04:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:04:14,391 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:14,391 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:14,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:14,605 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:14,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:14,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1297656650, now seen corresponding path program 1 times [2020-11-30 01:04:14,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:14,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916366350] [2020-11-30 01:04:14,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:14,622 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:14,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886218045] [2020-11-30 01:04:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:14,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 01:04:14,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:14,702 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:14,702 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:14,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916366350] [2020-11-30 01:04:14,738 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:14,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886218045] [2020-11-30 01:04:14,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:14,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-30 01:04:14,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275721048] [2020-11-30 01:04:14,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:04:14,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:14,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:04:14,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:04:14,739 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand 7 states. [2020-11-30 01:04:14,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:14,930 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2020-11-30 01:04:14,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:04:14,931 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-11-30 01:04:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:14,932 INFO L225 Difference]: With dead ends: 140 [2020-11-30 01:04:14,932 INFO L226 Difference]: Without dead ends: 136 [2020-11-30 01:04:14,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:04:14,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-11-30 01:04:14,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 75. [2020-11-30 01:04:14,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-11-30 01:04:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 91 transitions. [2020-11-30 01:04:14,950 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 91 transitions. Word has length 20 [2020-11-30 01:04:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:14,950 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 91 transitions. [2020-11-30 01:04:14,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:04:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 91 transitions. [2020-11-30 01:04:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:04:14,951 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:14,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:15,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:15,176 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:15,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:15,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1294482198, now seen corresponding path program 1 times [2020-11-30 01:04:15,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:15,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674422247] [2020-11-30 01:04:15,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:15,194 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:15,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110411689] [2020-11-30 01:04:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:15,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-30 01:04:15,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:15,266 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:15,267 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:15,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:15,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674422247] [2020-11-30 01:04:15,319 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:15,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110411689] [2020-11-30 01:04:15,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:15,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:04:15,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039714256] [2020-11-30 01:04:15,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:04:15,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:15,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:04:15,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:04:15,321 INFO L87 Difference]: Start difference. First operand 75 states and 91 transitions. Second operand 7 states. [2020-11-30 01:04:15,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:15,487 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2020-11-30 01:04:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:04:15,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-11-30 01:04:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:15,488 INFO L225 Difference]: With dead ends: 95 [2020-11-30 01:04:15,488 INFO L226 Difference]: Without dead ends: 93 [2020-11-30 01:04:15,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-30 01:04:15,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-30 01:04:15,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2020-11-30 01:04:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-30 01:04:15,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 102 transitions. [2020-11-30 01:04:15,507 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 102 transitions. Word has length 21 [2020-11-30 01:04:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:15,507 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 102 transitions. [2020-11-30 01:04:15,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:04:15,507 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 102 transitions. [2020-11-30 01:04:15,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:04:15,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:15,508 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:15,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-30 01:04:15,728 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:15,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:15,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1524629329, now seen corresponding path program 1 times [2020-11-30 01:04:15,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:15,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180669792] [2020-11-30 01:04:15,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:15,743 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:15,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013344622] [2020-11-30 01:04:15,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:15,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-30 01:04:15,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:15,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:15,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180669792] [2020-11-30 01:04:15,829 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:15,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013344622] [2020-11-30 01:04:15,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:15,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-30 01:04:15,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690004877] [2020-11-30 01:04:15,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:04:15,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:15,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:04:15,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:04:15,831 INFO L87 Difference]: Start difference. First operand 84 states and 102 transitions. Second operand 5 states. [2020-11-30 01:04:15,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:15,960 INFO L93 Difference]: Finished difference Result 135 states and 160 transitions. [2020-11-30 01:04:15,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:04:15,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-30 01:04:15,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:15,962 INFO L225 Difference]: With dead ends: 135 [2020-11-30 01:04:15,962 INFO L226 Difference]: Without dead ends: 133 [2020-11-30 01:04:15,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:04:15,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-11-30 01:04:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 116. [2020-11-30 01:04:15,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-11-30 01:04:15,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2020-11-30 01:04:15,988 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 146 transitions. Word has length 22 [2020-11-30 01:04:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:15,989 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 146 transitions. [2020-11-30 01:04:15,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:04:15,989 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 146 transitions. [2020-11-30 01:04:15,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 01:04:15,990 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:15,990 INFO L422 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] [2020-11-30 01:04:16,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:16,220 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:16,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:16,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1542934695, now seen corresponding path program 1 times [2020-11-30 01:04:16,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:16,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155054346] [2020-11-30 01:04:16,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:16,237 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:16,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994493383] [2020-11-30 01:04:16,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:16,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:04:16,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:16,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155054346] [2020-11-30 01:04:16,332 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:16,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994493383] [2020-11-30 01:04:16,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:16,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:04:16,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145480581] [2020-11-30 01:04:16,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:04:16,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:16,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:04:16,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:04:16,333 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. Second operand 4 states. [2020-11-30 01:04:16,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:16,420 INFO L93 Difference]: Finished difference Result 226 states and 287 transitions. [2020-11-30 01:04:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:04:16,420 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-11-30 01:04:16,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:16,423 INFO L225 Difference]: With dead ends: 226 [2020-11-30 01:04:16,423 INFO L226 Difference]: Without dead ends: 224 [2020-11-30 01:04:16,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:04:16,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-11-30 01:04:16,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 164. [2020-11-30 01:04:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-11-30 01:04:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 205 transitions. [2020-11-30 01:04:16,446 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 205 transitions. Word has length 23 [2020-11-30 01:04:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:16,447 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 205 transitions. [2020-11-30 01:04:16,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:04:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 205 transitions. [2020-11-30 01:04:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:04:16,448 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:16,448 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:16,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:16,676 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:16,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:16,677 INFO L82 PathProgramCache]: Analyzing trace with hash -584749134, now seen corresponding path program 1 times [2020-11-30 01:04:16,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:16,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427794775] [2020-11-30 01:04:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:16,692 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:16,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1714343433] [2020-11-30 01:04:16,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:16,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 45 conjunts are in the unsatisfiable core [2020-11-30 01:04:16,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:16,776 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:16,776 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:16,817 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:16,817 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:16,866 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:16,866 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:17,086 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:17,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427794775] [2020-11-30 01:04:17,089 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:17,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714343433] [2020-11-30 01:04:17,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:17,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-30 01:04:17,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334582089] [2020-11-30 01:04:17,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-30 01:04:17,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:17,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-30 01:04:17,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:04:17,094 INFO L87 Difference]: Start difference. First operand 164 states and 205 transitions. Second operand 13 states. [2020-11-30 01:04:17,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:17,898 INFO L93 Difference]: Finished difference Result 179 states and 214 transitions. [2020-11-30 01:04:17,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 01:04:17,900 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-11-30 01:04:17,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:17,903 INFO L225 Difference]: With dead ends: 179 [2020-11-30 01:04:17,903 INFO L226 Difference]: Without dead ends: 177 [2020-11-30 01:04:17,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2020-11-30 01:04:17,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-11-30 01:04:17,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 164. [2020-11-30 01:04:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-11-30 01:04:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 203 transitions. [2020-11-30 01:04:17,941 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 203 transitions. Word has length 24 [2020-11-30 01:04:17,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:17,941 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 203 transitions. [2020-11-30 01:04:17,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-30 01:04:17,942 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 203 transitions. [2020-11-30 01:04:17,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 01:04:17,943 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:17,943 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:18,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-11-30 01:04:18,144 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:18,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:18,144 INFO L82 PathProgramCache]: Analyzing trace with hash 696986485, now seen corresponding path program 1 times [2020-11-30 01:04:18,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:18,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508938785] [2020-11-30 01:04:18,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:18,163 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:18,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194855969] [2020-11-30 01:04:18,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:18,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 01:04:18,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:18,262 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:18,262 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:18,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508938785] [2020-11-30 01:04:18,349 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:18,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194855969] [2020-11-30 01:04:18,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:18,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-30 01:04:18,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428118966] [2020-11-30 01:04:18,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:04:18,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:18,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:04:18,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:04:18,350 INFO L87 Difference]: Start difference. First operand 164 states and 203 transitions. Second operand 9 states. [2020-11-30 01:04:18,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:18,694 INFO L93 Difference]: Finished difference Result 277 states and 328 transitions. [2020-11-30 01:04:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 01:04:18,694 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-11-30 01:04:18,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:18,696 INFO L225 Difference]: With dead ends: 277 [2020-11-30 01:04:18,696 INFO L226 Difference]: Without dead ends: 275 [2020-11-30 01:04:18,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-11-30 01:04:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-11-30 01:04:18,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 198. [2020-11-30 01:04:18,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-30 01:04:18,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 245 transitions. [2020-11-30 01:04:18,725 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 245 transitions. Word has length 26 [2020-11-30 01:04:18,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:18,725 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 245 transitions. [2020-11-30 01:04:18,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:04:18,725 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 245 transitions. [2020-11-30 01:04:18,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 01:04:18,729 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:18,729 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:18,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:18,948 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:18,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:18,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1427840048, now seen corresponding path program 2 times [2020-11-30 01:04:18,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:18,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605161765] [2020-11-30 01:04:18,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:18,960 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:18,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108662101] [2020-11-30 01:04:18,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:19,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:04:19,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:04:19,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:04:19,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:19,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605161765] [2020-11-30 01:04:19,095 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:19,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108662101] [2020-11-30 01:04:19,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:19,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:04:19,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731087663] [2020-11-30 01:04:19,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:04:19,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:19,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:04:19,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:04:19,096 INFO L87 Difference]: Start difference. First operand 198 states and 245 transitions. Second operand 5 states. [2020-11-30 01:04:19,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:19,223 INFO L93 Difference]: Finished difference Result 291 states and 355 transitions. [2020-11-30 01:04:19,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:04:19,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-30 01:04:19,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:19,232 INFO L225 Difference]: With dead ends: 291 [2020-11-30 01:04:19,232 INFO L226 Difference]: Without dead ends: 209 [2020-11-30 01:04:19,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:04:19,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-11-30 01:04:19,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 155. [2020-11-30 01:04:19,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-11-30 01:04:19,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 183 transitions. [2020-11-30 01:04:19,258 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 183 transitions. Word has length 27 [2020-11-30 01:04:19,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:19,258 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 183 transitions. [2020-11-30 01:04:19,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:04:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 183 transitions. [2020-11-30 01:04:19,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 01:04:19,264 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:19,264 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:19,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:19,480 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:19,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:19,481 INFO L82 PathProgramCache]: Analyzing trace with hash -963353371, now seen corresponding path program 1 times [2020-11-30 01:04:19,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:19,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486114219] [2020-11-30 01:04:19,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:19,499 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:19,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137871887] [2020-11-30 01:04:19,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:19,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 50 conjunts are in the unsatisfiable core [2020-11-30 01:04:19,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:19,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486114219] [2020-11-30 01:04:19,797 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:19,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137871887] [2020-11-30 01:04:19,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:19,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-30 01:04:19,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038985751] [2020-11-30 01:04:19,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:04:19,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:19,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:04:19,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:04:19,805 INFO L87 Difference]: Start difference. First operand 155 states and 183 transitions. Second operand 10 states. [2020-11-30 01:04:20,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:20,390 INFO L93 Difference]: Finished difference Result 226 states and 259 transitions. [2020-11-30 01:04:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 01:04:20,390 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-11-30 01:04:20,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:20,392 INFO L225 Difference]: With dead ends: 226 [2020-11-30 01:04:20,392 INFO L226 Difference]: Without dead ends: 218 [2020-11-30 01:04:20,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2020-11-30 01:04:20,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-30 01:04:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 172. [2020-11-30 01:04:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-30 01:04:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 202 transitions. [2020-11-30 01:04:20,416 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 202 transitions. Word has length 32 [2020-11-30 01:04:20,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:20,416 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 202 transitions. [2020-11-30 01:04:20,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:04:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 202 transitions. [2020-11-30 01:04:20,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 01:04:20,418 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:20,419 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:20,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-30 01:04:20,632 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:20,633 INFO L82 PathProgramCache]: Analyzing trace with hash 377688240, now seen corresponding path program 1 times [2020-11-30 01:04:20,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:20,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001753122] [2020-11-30 01:04:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:20,658 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:20,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687375081] [2020-11-30 01:04:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:20,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 26 conjunts are in the unsatisfiable core [2020-11-30 01:04:20,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:20,768 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:20,769 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:20,800 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:20,801 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:20,886 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:20,889 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:04:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:20,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001753122] [2020-11-30 01:04:20,911 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:20,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687375081] [2020-11-30 01:04:20,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:20,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-30 01:04:20,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919725453] [2020-11-30 01:04:20,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 01:04:20,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:20,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 01:04:20,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-30 01:04:20,913 INFO L87 Difference]: Start difference. First operand 172 states and 202 transitions. Second operand 11 states. [2020-11-30 01:04:21,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:21,566 INFO L93 Difference]: Finished difference Result 276 states and 327 transitions. [2020-11-30 01:04:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-30 01:04:21,567 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-11-30 01:04:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:21,568 INFO L225 Difference]: With dead ends: 276 [2020-11-30 01:04:21,568 INFO L226 Difference]: Without dead ends: 185 [2020-11-30 01:04:21,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-11-30 01:04:21,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-11-30 01:04:21,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 171. [2020-11-30 01:04:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-11-30 01:04:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 199 transitions. [2020-11-30 01:04:21,592 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 199 transitions. Word has length 32 [2020-11-30 01:04:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:21,593 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 199 transitions. [2020-11-30 01:04:21,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 01:04:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 199 transitions. [2020-11-30 01:04:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 01:04:21,594 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:21,594 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:21,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-30 01:04:21,808 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:21,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:21,809 INFO L82 PathProgramCache]: Analyzing trace with hash 518509350, now seen corresponding path program 2 times [2020-11-30 01:04:21,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:21,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603303264] [2020-11-30 01:04:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:21,818 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:21,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1289546703] [2020-11-30 01:04:21,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:21,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:04:21,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:04:21,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:04:21,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:21,995 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:21,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603303264] [2020-11-30 01:04:21,995 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:21,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289546703] [2020-11-30 01:04:21,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:21,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-30 01:04:21,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556096425] [2020-11-30 01:04:21,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:04:21,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:21,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:04:21,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:04:21,997 INFO L87 Difference]: Start difference. First operand 171 states and 199 transitions. Second operand 8 states. [2020-11-30 01:04:22,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:22,463 INFO L93 Difference]: Finished difference Result 390 states and 457 transitions. [2020-11-30 01:04:22,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 01:04:22,464 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2020-11-30 01:04:22,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:22,466 INFO L225 Difference]: With dead ends: 390 [2020-11-30 01:04:22,466 INFO L226 Difference]: Without dead ends: 386 [2020-11-30 01:04:22,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-30 01:04:22,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-11-30 01:04:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 211. [2020-11-30 01:04:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-30 01:04:22,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 252 transitions. [2020-11-30 01:04:22,497 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 252 transitions. Word has length 37 [2020-11-30 01:04:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:22,497 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 252 transitions. [2020-11-30 01:04:22,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:04:22,498 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 252 transitions. [2020-11-30 01:04:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 01:04:22,499 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:22,499 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:22,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-30 01:04:22,712 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:22,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:22,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1859550961, now seen corresponding path program 1 times [2020-11-30 01:04:22,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:22,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372169816] [2020-11-30 01:04:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:22,721 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:22,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [280997804] [2020-11-30 01:04:22,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:22,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 32 conjunts are in the unsatisfiable core [2020-11-30 01:04:22,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:22,805 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:22,805 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:22,834 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:22,835 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:22,974 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:22,975 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:04:23,006 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:23,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372169816] [2020-11-30 01:04:23,007 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:23,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280997804] [2020-11-30 01:04:23,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:23,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-30 01:04:23,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373880859] [2020-11-30 01:04:23,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 01:04:23,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:23,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 01:04:23,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:04:23,008 INFO L87 Difference]: Start difference. First operand 211 states and 252 transitions. Second operand 14 states. [2020-11-30 01:04:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:23,797 INFO L93 Difference]: Finished difference Result 296 states and 346 transitions. [2020-11-30 01:04:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-30 01:04:23,798 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-11-30 01:04:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:23,800 INFO L225 Difference]: With dead ends: 296 [2020-11-30 01:04:23,800 INFO L226 Difference]: Without dead ends: 294 [2020-11-30 01:04:23,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2020-11-30 01:04:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-11-30 01:04:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 251. [2020-11-30 01:04:23,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-11-30 01:04:23,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 300 transitions. [2020-11-30 01:04:23,851 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 300 transitions. Word has length 37 [2020-11-30 01:04:23,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:23,851 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 300 transitions. [2020-11-30 01:04:23,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 01:04:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 300 transitions. [2020-11-30 01:04:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-30 01:04:23,852 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:23,852 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:24,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:24,080 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:24,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1761053350, now seen corresponding path program 1 times [2020-11-30 01:04:24,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:24,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256490425] [2020-11-30 01:04:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:24,089 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:24,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [82696176] [2020-11-30 01:04:24,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:24,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:04:24,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:24,182 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 01:04:24,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256490425] [2020-11-30 01:04:24,182 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:24,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82696176] [2020-11-30 01:04:24,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:24,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:04:24,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115148487] [2020-11-30 01:04:24,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:04:24,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:24,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:04:24,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:04:24,184 INFO L87 Difference]: Start difference. First operand 251 states and 300 transitions. Second operand 5 states. [2020-11-30 01:04:24,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:24,289 INFO L93 Difference]: Finished difference Result 442 states and 534 transitions. [2020-11-30 01:04:24,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:04:24,290 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-11-30 01:04:24,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:24,292 INFO L225 Difference]: With dead ends: 442 [2020-11-30 01:04:24,292 INFO L226 Difference]: Without dead ends: 268 [2020-11-30 01:04:24,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:04:24,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-11-30 01:04:24,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 242. [2020-11-30 01:04:24,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-11-30 01:04:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 288 transitions. [2020-11-30 01:04:24,340 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 288 transitions. Word has length 38 [2020-11-30 01:04:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:24,341 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 288 transitions. [2020-11-30 01:04:24,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:04:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 288 transitions. [2020-11-30 01:04:24,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-30 01:04:24,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:24,342 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:24,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-11-30 01:04:24,556 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:24,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:24,557 INFO L82 PathProgramCache]: Analyzing trace with hash -240051100, now seen corresponding path program 2 times [2020-11-30 01:04:24,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:24,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214741177] [2020-11-30 01:04:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:24,565 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:24,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72257963] [2020-11-30 01:04:24,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:24,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-30 01:04:24,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:04:24,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:04:24,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:24,623 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 01:04:24,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214741177] [2020-11-30 01:04:24,624 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:24,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72257963] [2020-11-30 01:04:24,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:24,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:04:24,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769766024] [2020-11-30 01:04:24,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:04:24,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:24,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:04:24,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:04:24,626 INFO L87 Difference]: Start difference. First operand 242 states and 288 transitions. Second operand 4 states. [2020-11-30 01:04:24,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:24,740 INFO L93 Difference]: Finished difference Result 285 states and 339 transitions. [2020-11-30 01:04:24,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:04:24,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-11-30 01:04:24,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:24,743 INFO L225 Difference]: With dead ends: 285 [2020-11-30 01:04:24,743 INFO L226 Difference]: Without dead ends: 283 [2020-11-30 01:04:24,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:04:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-11-30 01:04:24,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 269. [2020-11-30 01:04:24,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-11-30 01:04:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 321 transitions. [2020-11-30 01:04:24,785 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 321 transitions. Word has length 38 [2020-11-30 01:04:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:24,785 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 321 transitions. [2020-11-30 01:04:24,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:04:24,786 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 321 transitions. [2020-11-30 01:04:24,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-30 01:04:24,786 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:24,786 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:25,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-11-30 01:04:25,000 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:25,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:25,001 INFO L82 PathProgramCache]: Analyzing trace with hash 54174495, now seen corresponding path program 1 times [2020-11-30 01:04:25,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:25,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764834133] [2020-11-30 01:04:25,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:25,009 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:25,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2052718336] [2020-11-30 01:04:25,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:25,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 01:04:25,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:25,062 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:25,062 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:04:25,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764834133] [2020-11-30 01:04:25,128 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:25,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052718336] [2020-11-30 01:04:25,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:25,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-30 01:04:25,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920446073] [2020-11-30 01:04:25,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:04:25,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:25,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:04:25,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:04:25,131 INFO L87 Difference]: Start difference. First operand 269 states and 321 transitions. Second operand 9 states. [2020-11-30 01:04:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:25,422 INFO L93 Difference]: Finished difference Result 344 states and 403 transitions. [2020-11-30 01:04:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 01:04:25,423 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2020-11-30 01:04:25,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:25,425 INFO L225 Difference]: With dead ends: 344 [2020-11-30 01:04:25,425 INFO L226 Difference]: Without dead ends: 279 [2020-11-30 01:04:25,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-11-30 01:04:25,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-11-30 01:04:25,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 263. [2020-11-30 01:04:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-30 01:04:25,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 311 transitions. [2020-11-30 01:04:25,462 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 311 transitions. Word has length 39 [2020-11-30 01:04:25,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:25,462 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 311 transitions. [2020-11-30 01:04:25,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:04:25,462 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 311 transitions. [2020-11-30 01:04:25,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-30 01:04:25,463 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:25,463 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:25,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-11-30 01:04:25,684 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:25,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:25,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1445762414, now seen corresponding path program 1 times [2020-11-30 01:04:25,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:25,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899311117] [2020-11-30 01:04:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:25,699 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:25,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075970069] [2020-11-30 01:04:25,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:25,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 66 conjunts are in the unsatisfiable core [2020-11-30 01:04:25,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:25,760 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:25,760 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:26,119 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:26,121 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:04:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:26,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899311117] [2020-11-30 01:04:26,180 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:26,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075970069] [2020-11-30 01:04:26,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:26,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-30 01:04:26,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286668104] [2020-11-30 01:04:26,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 01:04:26,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:26,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 01:04:26,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:04:26,182 INFO L87 Difference]: Start difference. First operand 263 states and 311 transitions. Second operand 14 states. [2020-11-30 01:04:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:26,849 INFO L93 Difference]: Finished difference Result 396 states and 472 transitions. [2020-11-30 01:04:26,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-30 01:04:26,856 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-11-30 01:04:26,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:26,858 INFO L225 Difference]: With dead ends: 396 [2020-11-30 01:04:26,858 INFO L226 Difference]: Without dead ends: 291 [2020-11-30 01:04:26,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2020-11-30 01:04:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-11-30 01:04:26,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 284. [2020-11-30 01:04:26,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-11-30 01:04:26,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 333 transitions. [2020-11-30 01:04:26,899 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 333 transitions. Word has length 41 [2020-11-30 01:04:26,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:26,900 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 333 transitions. [2020-11-30 01:04:26,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 01:04:26,900 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 333 transitions. [2020-11-30 01:04:26,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-30 01:04:26,901 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:26,901 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:27,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:27,125 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:27,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:27,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1081778253, now seen corresponding path program 2 times [2020-11-30 01:04:27,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:27,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762937981] [2020-11-30 01:04:27,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:27,133 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:27,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19943463] [2020-11-30 01:04:27,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:27,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:04:27,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:04:27,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 80 conjunts are in the unsatisfiable core [2020-11-30 01:04:27,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:27,490 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:27,490 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:27,715 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:27,715 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:28,365 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2020-11-30 01:04:28,383 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:28,389 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:28,393 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:28,397 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:28,404 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:28,408 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:28,413 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:28,417 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:28,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762937981] [2020-11-30 01:04:28,590 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:28,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19943463] [2020-11-30 01:04:28,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:28,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-11-30 01:04:28,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105187127] [2020-11-30 01:04:28,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-30 01:04:28,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:28,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-30 01:04:28,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-11-30 01:04:28,592 INFO L87 Difference]: Start difference. First operand 284 states and 333 transitions. Second operand 20 states. [2020-11-30 01:04:29,303 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-11-30 01:04:29,853 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-30 01:04:30,075 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-11-30 01:04:30,304 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-11-30 01:04:30,524 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2020-11-30 01:04:31,352 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-11-30 01:04:31,768 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2020-11-30 01:04:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:32,323 INFO L93 Difference]: Finished difference Result 394 states and 457 transitions. [2020-11-30 01:04:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-30 01:04:32,325 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 46 [2020-11-30 01:04:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:32,327 INFO L225 Difference]: With dead ends: 394 [2020-11-30 01:04:32,327 INFO L226 Difference]: Without dead ends: 386 [2020-11-30 01:04:32,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=179, Invalid=1153, Unknown=0, NotChecked=0, Total=1332 [2020-11-30 01:04:32,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-11-30 01:04:32,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 308. [2020-11-30 01:04:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-11-30 01:04:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 360 transitions. [2020-11-30 01:04:32,392 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 360 transitions. Word has length 46 [2020-11-30 01:04:32,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:32,392 INFO L481 AbstractCegarLoop]: Abstraction has 308 states and 360 transitions. [2020-11-30 01:04:32,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-30 01:04:32,393 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 360 transitions. [2020-11-30 01:04:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-30 01:04:32,393 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:32,393 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:32,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:32,620 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:32,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:32,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1872147432, now seen corresponding path program 2 times [2020-11-30 01:04:32,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:32,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924447307] [2020-11-30 01:04:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:32,627 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:32,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022235991] [2020-11-30 01:04:32,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:32,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 01:04:32,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:04:32,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-30 01:04:32,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:32,719 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:32,719 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:32,748 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:32,748 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:32,885 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:32,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924447307] [2020-11-30 01:04:32,886 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:32,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022235991] [2020-11-30 01:04:32,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:32,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-11-30 01:04:32,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407788714] [2020-11-30 01:04:32,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-30 01:04:32,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:32,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-30 01:04:32,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:04:32,889 INFO L87 Difference]: Start difference. First operand 308 states and 360 transitions. Second operand 12 states. [2020-11-30 01:04:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:33,507 INFO L93 Difference]: Finished difference Result 512 states and 601 transitions. [2020-11-30 01:04:33,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-30 01:04:33,509 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-11-30 01:04:33,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:33,511 INFO L225 Difference]: With dead ends: 512 [2020-11-30 01:04:33,512 INFO L226 Difference]: Without dead ends: 415 [2020-11-30 01:04:33,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-11-30 01:04:33,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-11-30 01:04:33,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 289. [2020-11-30 01:04:33,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-11-30 01:04:33,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 335 transitions. [2020-11-30 01:04:33,566 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 335 transitions. Word has length 46 [2020-11-30 01:04:33,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:33,566 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 335 transitions. [2020-11-30 01:04:33,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-30 01:04:33,566 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 335 transitions. [2020-11-30 01:04:33,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-30 01:04:33,567 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:33,567 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:33,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-11-30 01:04:33,780 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:33,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:33,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1198781090, now seen corresponding path program 1 times [2020-11-30 01:04:33,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:33,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975552489] [2020-11-30 01:04:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:33,787 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:33,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198395814] [2020-11-30 01:04:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:33,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 01:04:33,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:33,850 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:33,850 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 01:04:33,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975552489] [2020-11-30 01:04:33,919 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:33,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198395814] [2020-11-30 01:04:33,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:33,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-30 01:04:33,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322549007] [2020-11-30 01:04:33,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:04:33,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:33,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:04:33,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:04:33,920 INFO L87 Difference]: Start difference. First operand 289 states and 335 transitions. Second operand 10 states. [2020-11-30 01:04:34,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:34,171 INFO L93 Difference]: Finished difference Result 392 states and 462 transitions. [2020-11-30 01:04:34,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-30 01:04:34,173 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-11-30 01:04:34,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:34,174 INFO L225 Difference]: With dead ends: 392 [2020-11-30 01:04:34,175 INFO L226 Difference]: Without dead ends: 179 [2020-11-30 01:04:34,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-11-30 01:04:34,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-11-30 01:04:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-11-30 01:04:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-11-30 01:04:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 209 transitions. [2020-11-30 01:04:34,209 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 209 transitions. Word has length 49 [2020-11-30 01:04:34,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:34,209 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 209 transitions. [2020-11-30 01:04:34,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:04:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 209 transitions. [2020-11-30 01:04:34,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-30 01:04:34,210 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:34,210 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:34,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-11-30 01:04:34,424 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:34,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:34,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1923815369, now seen corresponding path program 1 times [2020-11-30 01:04:34,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:34,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221193748] [2020-11-30 01:04:34,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:34,430 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:34,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590657670] [2020-11-30 01:04:34,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:34,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 01:04:34,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:34,495 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:34,495 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:34,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221193748] [2020-11-30 01:04:34,828 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:34,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590657670] [2020-11-30 01:04:34,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:34,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-11-30 01:04:34,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901590923] [2020-11-30 01:04:34,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-30 01:04:34,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:34,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-30 01:04:34,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:04:34,830 INFO L87 Difference]: Start difference. First operand 179 states and 209 transitions. Second operand 12 states. [2020-11-30 01:04:35,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:35,722 INFO L93 Difference]: Finished difference Result 306 states and 350 transitions. [2020-11-30 01:04:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-30 01:04:35,725 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2020-11-30 01:04:35,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:35,726 INFO L225 Difference]: With dead ends: 306 [2020-11-30 01:04:35,726 INFO L226 Difference]: Without dead ends: 203 [2020-11-30 01:04:35,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-11-30 01:04:35,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-11-30 01:04:35,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 150. [2020-11-30 01:04:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-11-30 01:04:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 172 transitions. [2020-11-30 01:04:35,759 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 172 transitions. Word has length 50 [2020-11-30 01:04:35,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:35,759 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 172 transitions. [2020-11-30 01:04:35,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-30 01:04:35,760 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 172 transitions. [2020-11-30 01:04:35,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-30 01:04:35,760 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:35,761 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:35,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:35,983 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:35,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:35,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1108870652, now seen corresponding path program 3 times [2020-11-30 01:04:35,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:35,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549166796] [2020-11-30 01:04:35,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:35,989 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:35,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51261587] [2020-11-30 01:04:35,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:36,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-30 01:04:36,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:04:36,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 75 conjunts are in the unsatisfiable core [2020-11-30 01:04:36,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:36,183 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:36,184 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:36,250 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 01:04:36,251 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:36,568 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-11-30 01:04:36,740 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2020-11-30 01:04:36,748 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:36,750 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:36,761 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:36,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:38,820 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:40,913 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 01:04:41,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549166796] [2020-11-30 01:04:41,010 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:41,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51261587] [2020-11-30 01:04:41,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:41,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-11-30 01:04:41,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449526033] [2020-11-30 01:04:41,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 01:04:41,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:41,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 01:04:41,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-11-30 01:04:41,011 INFO L87 Difference]: Start difference. First operand 150 states and 172 transitions. Second operand 16 states. [2020-11-30 01:04:41,888 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-11-30 01:04:48,758 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2020-11-30 01:04:48,955 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-11-30 01:04:49,368 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2020-11-30 01:04:50,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:50,661 INFO L93 Difference]: Finished difference Result 230 states and 268 transitions. [2020-11-30 01:04:50,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-30 01:04:50,665 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 58 [2020-11-30 01:04:50,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:50,666 INFO L225 Difference]: With dead ends: 230 [2020-11-30 01:04:50,667 INFO L226 Difference]: Without dead ends: 219 [2020-11-30 01:04:50,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2020-11-30 01:04:50,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-30 01:04:50,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 143. [2020-11-30 01:04:50,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-11-30 01:04:50,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 164 transitions. [2020-11-30 01:04:50,701 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 164 transitions. Word has length 58 [2020-11-30 01:04:50,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:50,702 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 164 transitions. [2020-11-30 01:04:50,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 01:04:50,702 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 164 transitions. [2020-11-30 01:04:50,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-30 01:04:50,702 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:50,703 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:50,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-11-30 01:04:50,916 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:50,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:50,917 INFO L82 PathProgramCache]: Analyzing trace with hash 455702645, now seen corresponding path program 1 times [2020-11-30 01:04:50,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:04:50,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689851481] [2020-11-30 01:04:50,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:04:50,928 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:04:50,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894589400] [2020-11-30 01:04:50,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:50,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 01:04:50,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:50,995 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:04:50,995 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:51,212 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 42 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 01:04:51,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689851481] [2020-11-30 01:04:51,212 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 01:04:51,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894589400] [2020-11-30 01:04:51,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:04:51,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-30 01:04:51,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033709367] [2020-11-30 01:04:51,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 01:04:51,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:04:51,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 01:04:51,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-11-30 01:04:51,213 INFO L87 Difference]: Start difference. First operand 143 states and 164 transitions. Second operand 11 states. [2020-11-30 01:04:51,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:51,647 INFO L93 Difference]: Finished difference Result 143 states and 164 transitions. [2020-11-30 01:04:51,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 01:04:51,647 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2020-11-30 01:04:51,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:51,648 INFO L225 Difference]: With dead ends: 143 [2020-11-30 01:04:51,648 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:04:51,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-11-30 01:04:51,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:04:51,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:04:51,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:04:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:04:51,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2020-11-30 01:04:51,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:51,649 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:04:51,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 01:04:51,649 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:04:51,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:04:51,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:04:51,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:04:52,047 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 127 [2020-11-30 01:04:52,268 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 129 [2020-11-30 01:04:52,656 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 138 [2020-11-30 01:04:54,168 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 122 DAG size of output: 70 [2020-11-30 01:04:55,492 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 120 DAG size of output: 71 [2020-11-30 01:04:57,046 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 128 DAG size of output: 70 [2020-11-30 01:04:58,071 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 122 DAG size of output: 72 [2020-11-30 01:04:59,043 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 104 [2020-11-30 01:05:00,499 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 120 DAG size of output: 70 [2020-11-30 01:05:01,904 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 135 DAG size of output: 67 [2020-11-30 01:05:01,907 INFO L270 CegarLoopResult]: At program point L35-2(lines 35 73) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse1 (= ULTIMATE.start_main_~r~0 1)) (.cse2 (= ULTIMATE.start_main_~q~0 1)) (.cse6 (= ULTIMATE.start_main_~p~0 0)) (.cse8 (<= 1 ULTIMATE.start_main_~b~0)) (.cse3 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0)) (.cse4 (<= ULTIMATE.start_main_~x~0 2)) (.cse9 (<= ULTIMATE.start_main_~a~0 2)) (.cse10 (<= 1 ULTIMATE.start_main_~x~0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse7 (<= ULTIMATE.start_main_~y~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (* 2 ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~s~0 2) 0) .cse5 (= ULTIMATE.start_main_~x~0 (+ (* ULTIMATE.start_main_~a~0 2) ULTIMATE.start_main_~b~0)) .cse6) (and .cse0 .cse1 .cse2 .cse3 (< ULTIMATE.start_main_~c~0 2) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~s~0 0) .cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0) .cse6 .cse7 .cse8) (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse9 (= ULTIMATE.start_main_~r~0 0) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~s~0 1) .cse10 (= ULTIMATE.start_main_~q~0 0) .cse5 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse8 .cse7) (and (<= 1 ULTIMATE.start_main_~y~0) .cse3 .cse4 .cse9 (exists ((aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 Int) (aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 Int)) (let ((.cse11 (* 2 aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58))) (and (<= .cse11 0) (<= (+ ULTIMATE.start_main_~c~0 .cse11 (* 2 aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97)) 2) (< ULTIMATE.start_main_~c~0 (+ aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97)) (<= 0 (+ ULTIMATE.start_main_~c~0 .cse11)) (< 0 (+ .cse11 2))))) (exists ((aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 Int) (aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 Int)) (let ((.cse12 (* 2 aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58))) (and (<= .cse12 0) (<= 0 (+ ULTIMATE.start_main_~b~0 .cse12)) (<= (+ ULTIMATE.start_main_~b~0 .cse12 (* 2 aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97)) 2) (< 0 (+ .cse12 2)) (< ULTIMATE.start_main_~b~0 (+ aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97))))) .cse10 (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) .cse5 .cse7))) [2020-11-30 01:05:01,907 INFO L274 CegarLoopResult]: For program point L35-3(lines 35 73) no Hoare annotation was computed. [2020-11-30 01:05:01,907 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 01:05:01,907 INFO L274 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-11-30 01:05:01,908 INFO L270 CegarLoopResult]: At program point L11-1(lines 10 16) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_main_~d~0 1)) (.cse11 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0)) (.cse12 (= ULTIMATE.start_main_~p~0 1)) (.cse13 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_main_~k~0 0)) (.cse14 (= ULTIMATE.start_main_~r~0 0)) (.cse15 (= ULTIMATE.start_main_~s~0 1)) (.cse16 (= ULTIMATE.start_main_~q~0 0)) (.cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse1 (= ULTIMATE.start_main_~r~0 1)) (.cse17 (= ULTIMATE.start_main_~d~0 2)) (.cse2 (<= ULTIMATE.start_main_~c~0 2)) (.cse4 (= ULTIMATE.start_main_~q~0 1)) (.cse6 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse7 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse8 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse9 (= ULTIMATE.start_main_~p~0 0)) (.cse10 (<= 1 ULTIMATE.start_main_~b~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~s~0 0) .cse2 .cse3 (< ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse4 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) .cse5 .cse6 (<= 1 ULTIMATE.start_main_~v~0) .cse7 .cse8 .cse9 (<= ULTIMATE.start_main_~y~0 2) .cse10) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) .cse11 .cse12 .cse2 .cse3 .cse13 .cse5 .cse14 .cse6 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) .cse15 .cse16 .cse7 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0) .cse10) (and (= ULTIMATE.start_main_~v~0 (* ULTIMATE.start_main_~b~0 2)) .cse17 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse11 .cse12 .cse2 (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse13 .cse5 .cse6 .cse14 .cse15 .cse16 .cse7 .cse10) (let ((.cse18 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2)))) (and .cse0 .cse1 .cse17 (<= 1 (div ULTIMATE.start_main_~v~0 2)) (<= (* 2 .cse18) ULTIMATE.start_main_~c~0) .cse2 (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) .cse4 (<= ULTIMATE.start_main_~b~0 .cse18) .cse6 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~y~0) (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~y~0) .cse7 .cse8 .cse9 .cse10)))) [2020-11-30 01:05:01,908 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2020-11-30 01:05:01,908 INFO L270 CegarLoopResult]: At program point L11-3(lines 10 16) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_main_~d~0 1)) (.cse0 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0)) (.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse4 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_main_~k~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 0)) (.cse8 (= ULTIMATE.start_main_~s~0 1)) (.cse9 (= ULTIMATE.start_main_~q~0 0)) (.cse12 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse13 (= ULTIMATE.start_main_~r~0 1)) (.cse18 (= ULTIMATE.start_main_~d~0 2)) (.cse2 (<= ULTIMATE.start_main_~c~0 2)) (.cse14 (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0)))) (.cse15 (= ULTIMATE.start_main_~q~0 1)) (.cse7 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse10 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse16 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse17 (= ULTIMATE.start_main_~p~0 0)) (.cse11 (<= 1 ULTIMATE.start_main_~b~0))) (or (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) .cse8 .cse9 .cse10 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0) .cse11) (and .cse12 .cse13 .cse2 .cse3 (< ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse14 .cse15 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) .cse5 .cse7 (<= 1 ULTIMATE.start_main_~v~0) .cse10 .cse16 .cse17 (<= ULTIMATE.start_main_~y~0 2) .cse11) (and (= ULTIMATE.start_main_~v~0 (* ULTIMATE.start_main_~b~0 2)) .cse18 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse0 .cse1 .cse2 (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse4 .cse5 .cse7 .cse6 .cse8 .cse9 .cse10 .cse11) (let ((.cse19 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2)))) (and .cse12 .cse13 .cse18 (<= 1 (div ULTIMATE.start_main_~v~0 2)) (<= (* 2 .cse19) ULTIMATE.start_main_~c~0) .cse2 .cse14 .cse15 (<= ULTIMATE.start_main_~b~0 .cse19) .cse7 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~y~0) (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~y~0) .cse10 .cse16 .cse17 .cse11)))) [2020-11-30 01:05:01,908 INFO L274 CegarLoopResult]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2020-11-30 01:05:01,908 INFO L270 CegarLoopResult]: At program point L11-5(lines 10 16) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse14 (= ULTIMATE.start_main_~d~0 1)) (.cse2 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse3 (= ULTIMATE.start_main_~k~0 0)) (.cse4 (= ULTIMATE.start_main_~r~0 0)) (.cse6 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0)) (.cse7 (= ULTIMATE.start_main_~s~0 1)) (.cse8 (= ULTIMATE.start_main_~q~0 0)) (.cse11 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse12 (= ULTIMATE.start_main_~r~0 1)) (.cse0 (= ULTIMATE.start_main_~d~0 2)) (.cse13 (<= ULTIMATE.start_main_~c~0 2)) (.cse15 (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0)))) (.cse16 (= ULTIMATE.start_main_~q~0 1)) (.cse5 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse17 (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~y~0)) (.cse9 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse18 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse19 (= ULTIMATE.start_main_~p~0 0)) (.cse10 (<= 1 ULTIMATE.start_main_~b~0))) (or (and (= ULTIMATE.start_main_~v~0 (* ULTIMATE.start_main_~b~0 2)) .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~a~0 2) .cse1 (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse11 .cse12 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) .cse13 .cse14 (< ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse15 .cse16 .cse3 .cse5 (<= 1 ULTIMATE.start_main_~v~0) .cse17 .cse9 .cse18 .cse19 .cse10) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) .cse1 .cse13 .cse14 .cse2 .cse3 .cse5 .cse4 .cse6 .cse7 .cse8 .cse9 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0) .cse10) (let ((.cse20 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2)))) (and .cse11 .cse12 .cse0 (<= 1 (div ULTIMATE.start_main_~v~0 2)) (<= (* 2 .cse20) ULTIMATE.start_main_~c~0) .cse13 .cse15 .cse16 (<= ULTIMATE.start_main_~b~0 .cse20) .cse5 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~y~0) .cse17 .cse9 .cse18 .cse19 .cse10)))) [2020-11-30 01:05:01,908 INFO L274 CegarLoopResult]: For program point L11-6(lines 11 14) no Hoare annotation was computed. [2020-11-30 01:05:01,908 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L270 CegarLoopResult]: At program point L11-7(lines 55 56) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0)) (.cse1 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse4 (= ULTIMATE.start_main_~k~0 0)) (.cse6 (= ULTIMATE.start_main_~r~0 0)) (.cse7 (= ULTIMATE.start_main_~s~0 1)) (.cse8 (= ULTIMATE.start_main_~q~0 0)) (.cse2 (<= ULTIMATE.start_main_~c~0 2)) (.cse5 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse9 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse10 (<= 1 ULTIMATE.start_main_~b~0))) (or (and (= ULTIMATE.start_main_~v~0 (* ULTIMATE.start_main_~b~0 2)) .cse0 (= ULTIMATE.start_main_~d~0 2) .cse1 .cse2 (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse3 .cse4 .cse5 .cse6 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) .cse7 .cse8 .cse9 .cse10) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) .cse0 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0) .cse1 .cse2 (= ULTIMATE.start_main_~d~0 1) .cse3 (<= 1 ULTIMATE.start_main_~y~0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (let ((.cse11 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2)))) (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~v~0 (* ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~b~0)) (<= (* 2 .cse11) ULTIMATE.start_main_~c~0) .cse2 (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) (= ULTIMATE.start_main_~q~0 1) (<= ULTIMATE.start_main_~b~0 .cse11) .cse5 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~y~0) (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~y~0) .cse9 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~p~0 0) .cse10)))) [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point L11-8(lines 11 14) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L277 CegarLoopResult]: At program point L11-9(lines 10 16) the Hoare annotation is: true [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point L12(lines 12 13) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point L12-1(lines 12 13) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 13) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point L12-3(lines 12 13) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point L12-4(lines 12 13) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 01:05:01,909 INFO L274 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point L7-2(lines 7 9) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point L7-3(lines 7 9) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L270 CegarLoopResult]: At program point L49-2(lines 49 59) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse1 (= ULTIMATE.start_main_~r~0 1)) (.cse15 (= ULTIMATE.start_main_~d~0 1)) (.cse6 (= ULTIMATE.start_main_~q~0 1)) (.cse9 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse10 (= ULTIMATE.start_main_~p~0 0)) (.cse2 (= ULTIMATE.start_main_~d~0 2)) (.cse12 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~a~0)) (.cse4 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse13 (= ULTIMATE.start_main_~p~0 1)) (.cse5 (<= ULTIMATE.start_main_~c~0 2)) (.cse14 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse7 (= ULTIMATE.start_main_~k~0 0)) (.cse16 (= ULTIMATE.start_main_~r~0 0)) (.cse17 (= ULTIMATE.start_main_~s~0 1)) (.cse18 (= ULTIMATE.start_main_~q~0 0)) (.cse8 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse11 (<= 1 ULTIMATE.start_main_~b~0))) (or (let ((.cse3 (div (* ULTIMATE.start_main_~v~0 (- 1)) (- 2)))) (and .cse0 .cse1 .cse2 (<= 1 (div ULTIMATE.start_main_~v~0 2)) (<= (* 2 .cse3) ULTIMATE.start_main_~c~0) .cse4 .cse5 (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) .cse6 .cse7 (<= ULTIMATE.start_main_~b~0 .cse3) (= (+ ULTIMATE.start_main_~c~0 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0)) ULTIMATE.start_main_~y~0) .cse8 .cse9 .cse10 .cse11)) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0) .cse12 .cse13 .cse5 .cse14 .cse15 .cse7 .cse16 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) .cse17 .cse18 .cse8 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0) .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~s~0 0) .cse5 (< ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse15 .cse6 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) .cse7 (<= 1 ULTIMATE.start_main_~v~0) .cse8 .cse9 .cse10 (<= ULTIMATE.start_main_~y~0 2) .cse11) (and (= ULTIMATE.start_main_~v~0 (* ULTIMATE.start_main_~b~0 2)) .cse2 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) .cse12 .cse4 .cse13 .cse5 (<= ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~c~0) .cse14 .cse7 .cse16 .cse17 .cse18 .cse8 .cse11))) [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point L49-3(lines 49 59) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point L8-6(line 8) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:05:01,910 INFO L277 CegarLoopResult]: At program point L75(lines 18 76) the Hoare annotation is: true [2020-11-30 01:05:01,911 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 62) the Hoare annotation is: (let ((.cse8 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (.cse9 (= ULTIMATE.start_main_~r~0 1)) (.cse10 (= ULTIMATE.start_main_~s~0 0)) (.cse13 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (.cse14 (= ULTIMATE.start_main_~p~0 0)) (.cse0 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~v~0)) (.cse6 (= ULTIMATE.start_main_~d~0 1)) (.cse3 (<= 1 ULTIMATE.start_main_~x~0)) (.cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse17 (* ULTIMATE.start_main_~b~0 2)) (.cse5 (< (* 2 ULTIMATE.start_main_~c~0) 2)) (.cse12 (= ULTIMATE.start_main_~k~0 0)) (.cse1 (let ((.cse19 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0)) (.cse20 (= ULTIMATE.start_main_~r~0 0)) (.cse21 (= ULTIMATE.start_main_~s~0 1)) (.cse22 (= ULTIMATE.start_main_~p~0 1)) (.cse23 (= ULTIMATE.start_main_~q~0 0)) (.cse24 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)) (and .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 (<= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0))))) (.cse11 (<= ULTIMATE.start_main_~c~0 2)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse7 (<= ULTIMATE.start_main_~y~0 2)) (.cse15 (<= 1 ULTIMATE.start_main_~b~0))) (or (and .cse0 (= ULTIMATE.start_main_~k~0 1) (<= 0 ULTIMATE.start_main_~c~0) .cse1 .cse2 (= (+ ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~x~0) .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse9 (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~c~0) .cse10 .cse11 (= ULTIMATE.start_main_~q~0 1) (< ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~a~0) .cse12 .cse4 .cse13 .cse14 .cse7 .cse15) (let ((.cse16 (* ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~k~0))) (and .cse8 .cse9 (<= 1 (div ULTIMATE.start_main_~v~0 2)) .cse2 .cse10 (= .cse16 .cse17) (<= (+ (div (+ ULTIMATE.start_main_~v~0 (- 1)) 2) 1) ULTIMATE.start_main_~b~0) (= ULTIMATE.start_main_~b~0 (+ (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~x~0) (* ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~y~0))) (exists ((aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 Int) (aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 Int)) (let ((.cse18 (* 2 aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58))) (and (< ULTIMATE.start_main_~b~0 (+ aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 1)) (<= .cse18 0) (<= (+ ULTIMATE.start_main_~c~0 .cse18 (* 2 aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97)) 2) (<= 0 (+ ULTIMATE.start_main_~c~0 .cse18)) (< 0 (+ .cse18 2))))) .cse4 (= (+ ULTIMATE.start_main_~c~0 .cse16) ULTIMATE.start_main_~y~0) .cse13 .cse14)) (and (or (and .cse0 .cse1 .cse3 .cse4 .cse6 .cse7) (and (= ULTIMATE.start_main_~v~0 .cse17) .cse1 (= ULTIMATE.start_main_~d~0 2) .cse3 .cse4 .cse7)) (= ULTIMATE.start_main_~k~0 2) (<= ULTIMATE.start_main_~a~0 2) .cse2 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~c~0 .cse17)) (<= (* 2 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~x~0) .cse5) (and .cse12 .cse1 (= ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start_main_~c~0) .cse11 .cse4 .cse7 .cse15))) [2020-11-30 01:05:01,911 INFO L274 CegarLoopResult]: For program point L42-3(lines 42 62) no Hoare annotation was computed. [2020-11-30 01:05:01,911 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 01:05:01,911 INFO L274 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-11-30 01:05:01,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,941 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,942 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,942 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,943 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,943 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,943 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,943 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,943 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,949 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,951 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,951 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:01,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:01,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:05:01 BoogieIcfgContainer [2020-11-30 01:05:01,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:05:01,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:05:01,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:05:01,961 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:05:01,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:04:12" (3/4) ... [2020-11-30 01:05:01,964 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:05:01,974 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-11-30 01:05:01,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:05:01,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:05:01,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:05:01,999 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((a == y && r == 1) && q == 1) && b < a) && x <= 2) && 1 <= cond) && 2 * a <= x) && s + 2 == 0) && cond == 1) && x == a * 2 + b) && p == 0) || (((((((((((a == y && r == 1) && q == 1) && b < a) && c < 2) && 1 <= c) && s == 0) && cond == 1) && b == x) && p == 0) && y <= 2) && 1 <= b)) || ((((((((((a == x && a <= 2) && r == 0) && p == 1) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y) && 1 <= b) && y <= 2)) || (((((((((1 <= y && b < a) && x <= 2) && a <= 2) && (\exists aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 : int, aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 : int :: (((2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 <= 0 && c + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2 * aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 <= 2) && c < aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97) && 0 <= c + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58) && 0 < 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2)) && (\exists aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 : int, aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 : int :: (((2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 <= 0 && 0 <= b + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58) && b + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2 * aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 <= 2) && 0 < 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2) && b < aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97)) && 1 <= x) && 0 <= cond) && cond == 1) && y <= 2) [2020-11-30 01:05:01,999 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((b == v && k == 1) && 0 <= c) && (((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && b <= x) || ((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && c <= x))) && 1 <= cond) && c + b == x) && 1 <= x) && cond == 1) && 2 * c < 2) && d == 1) && y <= 2) || ((((((((((((a == y && r == 1) && b < c) && s == 0) && c <= 2) && q == 1) && b < a) && k == 0) && cond == 1) && b == x) && p == 0) && y <= 2) && 1 <= b)) || ((((((((((((a == y && r == 1) && 1 <= v / 2) && 1 <= cond) && s == 0) && b * k == b * 2) && (v + -1) / 2 + 1 <= b) && b == q * x + s * y) && (\exists aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 : int, aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 : int :: (((b < aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 + 1 && 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 <= 0) && c + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2 * aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 <= 2) && 0 <= c + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58) && 0 < 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2)) && cond == 1) && c + b * k == y) && b == x) && p == 0)) || ((((((((((((b == v && (((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && b <= x) || ((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && c <= x))) && 1 <= x) && cond == 1) && d == 1) && y <= 2) || (((((v == b * 2 && (((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && b <= x) || ((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && c <= x))) && d == 2) && 1 <= x) && cond == 1) && y <= 2)) && k == 2) && a <= 2) && 1 <= cond) && x == c + b * 2) && 2 * b <= x) && 2 * c < 2)) || (((((((k == 0 && (((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && b <= x) || ((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && c <= x))) && c == x) && 1 <= c) && c <= 2) && cond == 1) && y <= 2) && 1 <= b) [2020-11-30 01:05:02,024 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_32b0d379-73e0-4746-8bd7-fd6bc9bf1b24/bin/uautomizer/witness.graphml [2020-11-30 01:05:02,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:05:02,025 INFO L168 Benchmark]: Toolchain (without parser) took 50743.19 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 72.1 MB in the beginning and 120.9 MB in the end (delta: -48.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:05:02,026 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:05:02,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.57 ms. Allocated memory is still 100.7 MB. Free memory was 71.9 MB in the beginning and 77.9 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:05:02,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.89 ms. Allocated memory is still 100.7 MB. Free memory was 77.9 MB in the beginning and 76.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:05:02,027 INFO L168 Benchmark]: Boogie Preprocessor took 23.76 ms. Allocated memory is still 100.7 MB. Free memory was 76.3 MB in the beginning and 75.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:05:02,027 INFO L168 Benchmark]: RCFGBuilder took 421.64 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 57.7 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:05:02,028 INFO L168 Benchmark]: TraceAbstraction took 49890.13 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 57.2 MB in the beginning and 125.1 MB in the end (delta: -67.8 MB). Peak memory consumption was 88.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:05:02,028 INFO L168 Benchmark]: Witness Printer took 64.32 ms. Allocated memory is still 176.2 MB. Free memory was 125.1 MB in the beginning and 120.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:05:02,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.57 ms. Allocated memory is still 100.7 MB. Free memory was 71.9 MB in the beginning and 77.9 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.89 ms. Allocated memory is still 100.7 MB. Free memory was 77.9 MB in the beginning and 76.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.76 ms. Allocated memory is still 100.7 MB. Free memory was 76.3 MB in the beginning and 75.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 421.64 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 57.7 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 49890.13 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 57.2 MB in the beginning and 125.1 MB in the end (delta: -67.8 MB). Peak memory consumption was 88.2 MB. Max. memory is 16.1 GB. * Witness Printer took 64.32 ms. Allocated memory is still 176.2 MB. Free memory was 125.1 MB in the beginning and 120.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((((((((((((((((a == y && r == 1) && d == 2) && 1 <= v / 2) && 2 * (v * -1 / -2) <= c) && 1 <= cond) && c <= 2) && b == q * x + s * y) && q == 1) && k == 0) && b <= v * -1 / -2) && c + b * k == y) && cond == 1) && b == x) && p == 0) && 1 <= b) || (((((((((((((b == v && c == a) && p == 1) && c <= 2) && b == y) && d == 1) && k == 0) && r == 0) && c == x) && s == 1) && q == 0) && cond == 1) && b <= x) && 1 <= b)) || ((((((((((((((a == y && r == 1) && s == 0) && c <= 2) && v < c) && d == 1) && q == 1) && b < a) && k == 0) && 1 <= v) && cond == 1) && b == x) && p == 0) && y <= 2) && 1 <= b)) || ((((((((((((((v == b * 2 && d == 2) && a == x) && c == a) && 1 <= cond) && p == 1) && c <= 2) && v <= c) && b == y) && k == 0) && r == 0) && s == 1) && q == 0) && cond == 1) && 1 <= b) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((((((((a == y && r == 1) && s == 0) && c <= 2) && d == 1) && v < c) && q == 1) && b < a) && k == 0) && 1 == cond) && 1 <= v) && cond == 1) && b == x) && p == 0) && y <= 2) && 1 <= b) || ((((((((((((((b == v && c == a) && p == 1) && c <= 2) && d == 1) && b == y) && k == 0) && r == 0) && 1 == cond) && c == x) && s == 1) && q == 0) && cond == 1) && b <= x) && 1 <= b)) || ((((((((((((((v == b * 2 && d == 2) && a == x) && c == a) && p == 1) && c <= 2) && v <= c) && b == y) && k == 0) && 1 == cond) && r == 0) && s == 1) && q == 0) && cond == 1) && 1 <= b)) || (((((((((((((((a == y && r == 1) && d == 2) && 1 <= v / 2) && 2 * (v * -1 / -2) <= c) && c <= 2) && b == q * x + s * y) && q == 1) && b <= v * -1 / -2) && 1 == cond) && c == y) && c + b * k == y) && cond == 1) && b == x) && p == 0) && 1 <= b) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((((((((v == b * 2 && d == 2) && a == x) && a <= 2) && p == 1) && v <= c) && b == y) && k == 0) && r == 0) && 1 == cond) && c == x) && s == 1) && q == 0) && cond == 1) && 1 <= b) || (((((((((((((((a == y && r == 1) && b < c) && c <= 2) && d == 1) && v < c) && b == q * x + s * y) && q == 1) && k == 0) && 1 == cond) && 1 <= v) && c + b * k == y) && cond == 1) && b == x) && p == 0) && 1 <= b)) || ((((((((((((((b == v && c == a) && p == 1) && c <= 2) && d == 1) && b == y) && k == 0) && 1 == cond) && r == 0) && c == x) && s == 1) && q == 0) && cond == 1) && b <= x) && 1 <= b)) || (((((((((((((((a == y && r == 1) && d == 2) && 1 <= v / 2) && 2 * (v * -1 / -2) <= c) && c <= 2) && b == q * x + s * y) && q == 1) && b <= v * -1 / -2) && 1 == cond) && c == y) && c + b * k == y) && cond == 1) && b == x) && p == 0) && 1 <= b) - InvariantResult [Line: 35]: Loop Invariant [2020-11-30 01:05:02,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] Derived loop invariant: ((((((((((((a == y && r == 1) && q == 1) && b < a) && x <= 2) && 1 <= cond) && 2 * a <= x) && s + 2 == 0) && cond == 1) && x == a * 2 + b) && p == 0) || (((((((((((a == y && r == 1) && q == 1) && b < a) && c < 2) && 1 <= c) && s == 0) && cond == 1) && b == x) && p == 0) && y <= 2) && 1 <= b)) || ((((((((((a == x && a <= 2) && r == 0) && p == 1) && s == 1) && 1 <= x) && q == 0) && cond == 1) && b == y) && 1 <= b) && y <= 2)) || (((((((((1 <= y && b < a) && x <= 2) && a <= 2) && (\exists aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 : int, aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 : int :: (((2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 <= 0 && c + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2 * aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 <= 2) && c < aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97) && 0 <= c + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58) && 0 < 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2)) && (\exists aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 : int, aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 : int :: (((2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 <= 0 && 0 <= b + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58) && b + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2 * aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 <= 2) && 0 < 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2) && b < aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97)) && 1 <= x) && 0 <= cond) && cond == 1) && y <= 2) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((((((((b == v && c == a) && p == 1) && c <= 2) && d == 1) && b == y) && k == 0) && r == 0) && 1 == cond) && c == x) && s == 1) && q == 0) && cond == 1) && b <= x) && 1 <= b) || (((((((((((((((a == y && r == 1) && c <= 2) && d == 1) && v < c) && b == q * x + s * y) && q == 1) && b < a) && k == 0) && 1 == cond) && 1 <= v) && cond == 1) && b == x) && p == 0) && y <= 2) && 1 <= b)) || ((((((((((((((v == b * 2 && d == 2) && a == x) && c == a) && p == 1) && c <= 2) && v <= c) && b == y) && k == 0) && 1 == cond) && r == 0) && s == 1) && q == 0) && cond == 1) && 1 <= b)) || (((((((((((((((a == y && r == 1) && d == 2) && 1 <= v / 2) && 2 * (v * -1 / -2) <= c) && c <= 2) && b == q * x + s * y) && q == 1) && b <= v * -1 / -2) && 1 == cond) && c == y) && c + b * k == y) && cond == 1) && b == x) && p == 0) && 1 <= b) - InvariantResult [Line: 42]: Loop Invariant [2020-11-30 01:05:02,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,054 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97,QUANTIFIED] [2020-11-30 01:05:02,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] [2020-11-30 01:05:02,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58,QUANTIFIED] Derived loop invariant: (((((((((((((b == v && k == 1) && 0 <= c) && (((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && b <= x) || ((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && c <= x))) && 1 <= cond) && c + b == x) && 1 <= x) && cond == 1) && 2 * c < 2) && d == 1) && y <= 2) || ((((((((((((a == y && r == 1) && b < c) && s == 0) && c <= 2) && q == 1) && b < a) && k == 0) && cond == 1) && b == x) && p == 0) && y <= 2) && 1 <= b)) || ((((((((((((a == y && r == 1) && 1 <= v / 2) && 1 <= cond) && s == 0) && b * k == b * 2) && (v + -1) / 2 + 1 <= b) && b == q * x + s * y) && (\exists aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 : int, aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 : int :: (((b < aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 + 1 && 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 <= 0) && c + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2 * aux_div_aux_mod_ULTIMATE.start_main_~v~0_46_97 <= 2) && 0 <= c + 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58) && 0 < 2 * aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~v~0_46_97_58 + 2)) && cond == 1) && c + b * k == y) && b == x) && p == 0)) || ((((((((((((b == v && (((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && b <= x) || ((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && c <= x))) && 1 <= x) && cond == 1) && d == 1) && y <= 2) || (((((v == b * 2 && (((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && b <= x) || ((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && c <= x))) && d == 2) && 1 <= x) && cond == 1) && y <= 2)) && k == 2) && a <= 2) && 1 <= cond) && x == c + b * 2) && 2 * b <= x) && 2 * c < 2)) || (((((((k == 0 && (((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && b <= x) || ((((((a == x && r == 0) && s == 1) && p == 1) && q == 0) && b == y) && c <= x))) && c == x) && 1 <= c) && c <= 2) && cond == 1) && y <= 2) && 1 <= b) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: (((((((((((((((v == b * 2 && a == x) && d == 2) && p == 1) && c <= 2) && v <= c) && b == y) && k == 0) && 1 == cond) && r == 0) && c == x) && s == 1) && q == 0) && cond == 1) && 1 <= b) || ((((((((((((((b == v && a == x) && c == a) && p == 1) && c <= 2) && d == 1) && b == y) && 1 <= y) && k == 0) && 1 == cond) && r == 0) && s == 1) && q == 0) && cond == 1) && b <= x)) || ((((((((((((((a == y && r == 1) && v == d * b) && 2 * (v * -1 / -2) <= c) && c <= 2) && b == q * x + s * y) && q == 1) && b <= v * -1 / -2) && 1 == cond) && c == y) && c + b * k == y) && cond == 1) && b == x) && p == 0) && 1 <= b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.7s, OverallIterations: 25, TraceHistogramMax: 5, AutomataDifference: 22.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 905 SDtfs, 3541 SDslu, 3426 SDs, 0 SdLazy, 4663 SolverSat, 507 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 982 GetRequests, 626 SyntacticMatches, 2 SemanticMatches, 354 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1088 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=308occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 25 MinimizatonAttempts, 1015 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 52 NumberOfFragments, 1682 HoareAnnotationTreeSize, 9 FomulaSimplifications, 37539 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 11064 FormulaSimplificationTreeSizeReductionInter, 9.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 831 NumberOfCodeBlocks, 793 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 806 ConstructedInterpolants, 5 QuantifiedInterpolants, 326734 SizeOfPredicates, 260 NumberOfNonLiveVariables, 3321 ConjunctsInSsa, 577 ConjunctsInUnsatCore, 25 InterpolantComputations, 10 PerfectInterpolantSequences, 211/354 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 proved your program to be correct! Received shutdown request...