./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN --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 918183af41ed822b080517d21adc4e88771d95d1ab967de55d618cd7a5912a2d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:06:42,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:06:42,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:06:42,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:06:42,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:06:42,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:06:42,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:06:42,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:06:42,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:06:42,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:06:42,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:06:42,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:06:42,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:06:42,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:06:42,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:06:42,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:06:42,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:06:42,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:06:42,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:06:42,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:06:42,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:06:42,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:06:42,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:06:42,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:06:42,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:06:42,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:06:42,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:06:42,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:06:42,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:06:42,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:06:42,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:06:42,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:06:42,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:06:42,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:06:42,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:06:42,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:06:42,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:06:42,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:06:42,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:06:42,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:06:42,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:06:42,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:06:42,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:06:42,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:06:42,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:06:42,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:06:42,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:06:42,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:06:42,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:06:42,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:06:42,289 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:06:42,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:06:42,290 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:06:42,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:06:42,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:06:42,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:06:42,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:06:42,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:06:42,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:06:42,292 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:06:42,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:06:42,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:06:42,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:06:42,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:06:42,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:06:42,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:06:42,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:42,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:06:42,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:06:42,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:06:42,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:06:42,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:06:42,295 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:06:42,295 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:06:42,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:06:42,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 918183af41ed822b080517d21adc4e88771d95d1ab967de55d618cd7a5912a2d [2022-11-20 11:06:42,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:06:42,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:06:42,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:06:42,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:06:42,667 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:06:42,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i [2022-11-20 11:06:45,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:06:45,980 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:06:45,980 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i [2022-11-20 11:06:45,988 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/data/b3cdee041/5c2a27855c644238b1cd824562b9b6e1/FLAGd76388721 [2022-11-20 11:06:46,005 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/data/b3cdee041/5c2a27855c644238b1cd824562b9b6e1 [2022-11-20 11:06:46,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:06:46,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:06:46,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:46,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:06:46,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:06:46,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb830bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46, skipping insertion in model container [2022-11-20 11:06:46,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:06:46,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:06:46,210 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i[950,963] [2022-11-20 11:06:46,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:46,242 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:06:46,261 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound100.i[950,963] [2022-11-20 11:06:46,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:46,312 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:06:46,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46 WrapperNode [2022-11-20 11:06:46,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:46,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:46,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:06:46,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:06:46,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,360 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2022-11-20 11:06:46,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:46,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:06:46,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:06:46,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:06:46,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:06:46,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:06:46,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:06:46,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:06:46,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (1/1) ... [2022-11-20 11:06:46,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:46,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:46,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:46,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:06:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:06:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:06:46,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:06:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:06:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:06:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:06:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 11:06:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 11:06:46,557 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:06:46,559 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:06:46,707 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:06:46,713 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:06:46,714 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:06:46,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:46 BoogieIcfgContainer [2022-11-20 11:06:46,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:06:46,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:06:46,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:06:46,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:06:46,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:06:46" (1/3) ... [2022-11-20 11:06:46,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c94fd12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:46, skipping insertion in model container [2022-11-20 11:06:46,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:46" (2/3) ... [2022-11-20 11:06:46,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c94fd12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:46, skipping insertion in model container [2022-11-20 11:06:46,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:46" (3/3) ... [2022-11-20 11:06:46,725 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin_valuebound100.i [2022-11-20 11:06:46,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:06:46,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:06:46,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:06:46,822 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7669d082, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:06:46,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:06:46,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 11:06:46,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 11:06:46,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:46,837 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:46,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:46,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:46,845 INFO L85 PathProgramCache]: Analyzing trace with hash 913242413, now seen corresponding path program 1 times [2022-11-20 11:06:46,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:46,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251099493] [2022-11-20 11:06:46,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:46,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:47,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251099493] [2022-11-20 11:06:47,045 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 11:06:47,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881219942] [2022-11-20 11:06:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:47,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:47,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:47,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:47,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:06:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:06:47,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 11:06:47,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:06:47,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881219942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:47,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:47,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:06:47,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212689067] [2022-11-20 11:06:47,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:47,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:06:47,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:47,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:06:47,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:06:47,271 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:06:47,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:47,293 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions. [2022-11-20 11:06:47,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:06:47,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2022-11-20 11:06:47,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:47,303 INFO L225 Difference]: With dead ends: 55 [2022-11-20 11:06:47,303 INFO L226 Difference]: Without dead ends: 25 [2022-11-20 11:06:47,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:06:47,310 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:47,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:06:47,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-20 11:06:47,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-20 11:06:47,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 11:06:47,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-11-20 11:06:47,362 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 30 [2022-11-20 11:06:47,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:47,362 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-11-20 11:06:47,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:06:47,363 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-11-20 11:06:47,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 11:06:47,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:47,380 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:47,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:47,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:47,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:47,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:47,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2061833476, now seen corresponding path program 1 times [2022-11-20 11:06:47,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:47,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13484825] [2022-11-20 11:06:47,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:47,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:47,625 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:06:47,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [465096570] [2022-11-20 11:06:47,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:47,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:47,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:47,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:47,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:06:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:47,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 11:06:47,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:48,095 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:06:48,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:06:48,297 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 11:06:48,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:48,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13484825] [2022-11-20 11:06:48,298 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:06:48,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465096570] [2022-11-20 11:06:48,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465096570] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:48,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:06:48,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-20 11:06:48,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771947162] [2022-11-20 11:06:48,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:48,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:06:48,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:48,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:06:48,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:06:48,303 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 11:06:50,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:06:50,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:50,582 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2022-11-20 11:06:50,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:06:50,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2022-11-20 11:06:50,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:50,585 INFO L225 Difference]: With dead ends: 37 [2022-11-20 11:06:50,585 INFO L226 Difference]: Without dead ends: 34 [2022-11-20 11:06:50,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:06:50,587 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 11 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:50,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 88 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 11:06:50,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-20 11:06:50,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-20 11:06:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 11:06:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2022-11-20 11:06:50,611 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 31 [2022-11-20 11:06:50,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:50,613 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2022-11-20 11:06:50,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 11:06:50,615 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-11-20 11:06:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-20 11:06:50,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:50,618 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:50,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:50,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-20 11:06:50,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:50,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:50,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1044269705, now seen corresponding path program 1 times [2022-11-20 11:06:50,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:50,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454330938] [2022-11-20 11:06:50,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:50,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:50,846 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:06:50,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1290611414] [2022-11-20 11:06:50,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:50,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:50,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:50,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:50,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:06:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:50,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 11:06:50,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:51,222 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 11:06:51,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:06:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 11:06:51,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:51,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454330938] [2022-11-20 11:06:51,483 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:06:51,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290611414] [2022-11-20 11:06:51,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290611414] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:51,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:06:51,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-20 11:06:51,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196393470] [2022-11-20 11:06:51,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:51,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:06:51,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:51,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:06:51,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:06:51,486 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 11:06:51,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:51,545 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-11-20 11:06:51,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:06:51,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2022-11-20 11:06:51,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:51,549 INFO L225 Difference]: With dead ends: 42 [2022-11-20 11:06:51,550 INFO L226 Difference]: Without dead ends: 40 [2022-11-20 11:06:51,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:06:51,554 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 5 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:51,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 130 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 16 Unchecked, 0.0s Time] [2022-11-20 11:06:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-20 11:06:51,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-20 11:06:51,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 11:06:51,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2022-11-20 11:06:51,591 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 33 [2022-11-20 11:06:51,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:51,592 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2022-11-20 11:06:51,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 11:06:51,593 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2022-11-20 11:06:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 11:06:51,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:51,597 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:51,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 11:06:51,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:51,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:51,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:51,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1786164585, now seen corresponding path program 1 times [2022-11-20 11:06:51,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:51,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141148057] [2022-11-20 11:06:51,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:51,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:51,822 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:06:51,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155424787] [2022-11-20 11:06:51,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:51,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:51,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:51,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:51,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:06:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:51,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:06:51,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 11:06:51,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:06:51,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:51,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141148057] [2022-11-20 11:06:51,917 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:06:51,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155424787] [2022-11-20 11:06:51,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155424787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:51,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:51,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:06:51,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192301740] [2022-11-20 11:06:51,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:51,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:06:51,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:51,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:06:51,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:06:51,920 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 11:06:51,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:51,968 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-11-20 11:06:51,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:06:51,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-20 11:06:51,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:51,972 INFO L225 Difference]: With dead ends: 51 [2022-11-20 11:06:51,973 INFO L226 Difference]: Without dead ends: 33 [2022-11-20 11:06:51,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:06:51,978 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:51,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:06:51,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-20 11:06:51,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-20 11:06:51,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 11:06:51,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-11-20 11:06:52,000 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 39 [2022-11-20 11:06:52,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:52,001 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-11-20 11:06:52,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 11:06:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-11-20 11:06:52,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 11:06:52,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:52,003 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 11:06:52,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:52,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:52,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:52,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:52,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1444020969, now seen corresponding path program 1 times [2022-11-20 11:06:52,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:52,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635061236] [2022-11-20 11:06:52,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:52,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:52,225 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:06:52,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984143185] [2022-11-20 11:06:52,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:52,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:52,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:52,227 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:52,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:06:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:06:52,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 11:06:52,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:06:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 11:06:52,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:52,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635061236] [2022-11-20 11:06:52,490 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:06:52,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984143185] [2022-11-20 11:06:52,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984143185] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:06:52,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:06:52,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2022-11-20 11:06:52,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820377755] [2022-11-20 11:06:52,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:06:52,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:06:52,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:52,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:06:52,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:06:52,493 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 11:06:52,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:52,634 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-11-20 11:06:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:06:52,635 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2022-11-20 11:06:52,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:52,636 INFO L225 Difference]: With dead ends: 39 [2022-11-20 11:06:52,636 INFO L226 Difference]: Without dead ends: 32 [2022-11-20 11:06:52,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:06:52,637 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:52,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 152 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:06:52,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-20 11:06:52,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-20 11:06:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 11:06:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-11-20 11:06:52,650 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 39 [2022-11-20 11:06:52,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:52,651 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-11-20 11:06:52,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 11:06:52,652 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-11-20 11:06:52,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 11:06:52,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:52,659 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 11:06:52,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:06:52,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:52,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:52,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:52,865 INFO L85 PathProgramCache]: Analyzing trace with hash 145189394, now seen corresponding path program 1 times [2022-11-20 11:06:52,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:52,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984374276] [2022-11-20 11:06:52,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:52,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:52,879 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:06:52,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [714204780] [2022-11-20 11:06:52,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:52,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:52,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:52,886 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:52,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:06:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:53,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-20 11:06:53,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:53,312 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 11:06:53,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:06:58,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:06:58,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984374276] [2022-11-20 11:06:58,638 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:06:58,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714204780] [2022-11-20 11:06:58,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714204780] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:06:58,638 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:06:58,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-11-20 11:06:58,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133290214] [2022-11-20 11:06:58,639 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-20 11:06:58,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:06:58,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:06:58,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:06:58,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:06:58,640 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 11:06:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:58,840 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-11-20 11:06:58,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:06:58,841 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-11-20 11:06:58,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:58,842 INFO L225 Difference]: With dead ends: 45 [2022-11-20 11:06:58,842 INFO L226 Difference]: Without dead ends: 43 [2022-11-20 11:06:58,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:06:58,843 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:58,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 85 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:06:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-20 11:06:58,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2022-11-20 11:06:58,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 11:06:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-11-20 11:06:58,853 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 41 [2022-11-20 11:06:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:58,854 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-11-20 11:06:58,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 11:06:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-11-20 11:06:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 11:06:58,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:58,855 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:06:58,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-20 11:06:59,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 11:06:59,061 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:06:59,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:59,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2114474925, now seen corresponding path program 2 times [2022-11-20 11:06:59,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:06:59,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769773862] [2022-11-20 11:06:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:59,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:06:59,076 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:06:59,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1588941878] [2022-11-20 11:06:59,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:06:59,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:06:59,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:59,078 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:06:59,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:06:59,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:06:59,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:06:59,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 11:06:59,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 11:06:59,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:07:01,632 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 11:07:01,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:01,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769773862] [2022-11-20 11:07:01,633 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:07:01,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588941878] [2022-11-20 11:07:01,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588941878] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:07:01,634 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:07:01,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-20 11:07:01,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53510277] [2022-11-20 11:07:01,634 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:07:01,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 11:07:01,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:01,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 11:07:01,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:07:01,641 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-20 11:07:03,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:03,267 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2022-11-20 11:07:03,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:07:03,268 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) Word has length 49 [2022-11-20 11:07:03,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:03,269 INFO L225 Difference]: With dead ends: 74 [2022-11-20 11:07:03,269 INFO L226 Difference]: Without dead ends: 47 [2022-11-20 11:07:03,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:07:03,270 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 45 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:03,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 115 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 11:07:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-20 11:07:03,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2022-11-20 11:07:03,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 33 states have internal predecessors, (35), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 11:07:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2022-11-20 11:07:03,284 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 49 [2022-11-20 11:07:03,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:03,284 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2022-11-20 11:07:03,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-20 11:07:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2022-11-20 11:07:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 11:07:03,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:03,285 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 11:07:03,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-20 11:07:03,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:07:03,492 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:07:03,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:03,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1596822888, now seen corresponding path program 3 times [2022-11-20 11:07:03,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:03,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392703630] [2022-11-20 11:07:03,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:03,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:03,518 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:07:03,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251225997] [2022-11-20 11:07:03,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:07:03,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:07:03,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:07:03,522 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:07:03,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 11:07:05,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 11:07:05,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:07:05,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-20 11:07:05,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:07,915 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 11:07:07,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:07:20,768 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (mod |c_ULTIMATE.start_main_~b~0#1| 4294967296)) (.cse1 (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296))) (or (= .cse0 (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296)) (not (= .cse1 (mod (+ |c_ULTIMATE.start_main_~r~0#1| (* |c_ULTIMATE.start_main_~b~0#1| |c_ULTIMATE.start_main_~q~0#1|)) 4294967296))) (not (<= .cse0 (mod |c_ULTIMATE.start_main_~r~0#1| 4294967296))) (= (mod (let ((.cse2 (div .cse0 2))) (+ (* 2 .cse2) |c_ULTIMATE.start_main_~r~0#1| (* 2 .cse2 |c_ULTIMATE.start_main_~q~0#1|) (* 4294967295 |c_ULTIMATE.start_main_~b~0#1|))) 4294967296) .cse1))) is different from true [2022-11-20 11:07:26,662 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 (div (mod |c_ULTIMATE.start_main_~b~0#1| 4294967296) 2))) (let ((.cse2 (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse0 (mod .cse1 4294967296))) (or (not (<= .cse0 (mod |c_ULTIMATE.start_main_~r~0#1| 4294967296))) (not (= (mod (+ |c_ULTIMATE.start_main_~r~0#1| (* 2 .cse1 |c_ULTIMATE.start_main_~q~0#1|)) 4294967296) .cse2)) (= (mod (let ((.cse3 (div .cse0 2))) (+ (* .cse3 2) |c_ULTIMATE.start_main_~r~0#1| (* .cse3 4 |c_ULTIMATE.start_main_~q~0#1|) (* 4294967295 .cse1))) 4294967296) .cse2) (= .cse0 (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296))))) is different from true [2022-11-20 11:07:54,846 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 (mod |c_ULTIMATE.start_main_~b~0#1| 2147483648))) (let ((.cse4 (mod |c_ULTIMATE.start_main_~r~0#1| 4294967296)) (.cse3 (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse2 (mod .cse1 4294967296))) (or (= (mod (let ((.cse0 (div .cse2 2))) (+ (* 2 .cse0) (* 4 .cse0 |c_ULTIMATE.start_main_~q~0#1|) |c_ULTIMATE.start_main_~r~0#1| (* 4294967295 .cse1))) 4294967296) .cse3) (<= (* 2 .cse1) .cse4) (not (<= (mod |c_ULTIMATE.start_main_~b~0#1| 4294967296) .cse4)) (not (= (mod (+ |c_ULTIMATE.start_main_~r~0#1| (* 2 .cse1 |c_ULTIMATE.start_main_~q~0#1|)) 4294967296) .cse3)) (= (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296) .cse2)))) is different from true [2022-11-20 11:08:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 8 not checked. [2022-11-20 11:08:17,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:08:17,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392703630] [2022-11-20 11:08:17,738 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-20 11:08:17,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251225997] [2022-11-20 11:08:17,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251225997] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:08:17,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:08:17,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 23 [2022-11-20 11:08:17,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240202985] [2022-11-20 11:08:17,739 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:08:17,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:08:17,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:08:17,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:08:17,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=306, Unknown=4, NotChecked=114, Total=506 [2022-11-20 11:08:17,740 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 21 states have internal predecessors, (51), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 11:08:20,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:08:25,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:08:27,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:08:28,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:08:32,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:09:30,462 WARN L233 SmtUtils]: Spent 44.13s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:09:32,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:09:34,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:09:35,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:09:38,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:10:18,149 WARN L233 SmtUtils]: Spent 32.10s on a formula simplification. DAG size of input: 44 DAG size of output: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:10:20,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:10:22,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:10:48,178 WARN L233 SmtUtils]: Spent 21.16s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:10:51,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:11:11,684 WARN L233 SmtUtils]: Spent 13.26s on a formula simplification. DAG size of input: 38 DAG size of output: 36 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:11:15,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:11:23,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:11:49,427 WARN L233 SmtUtils]: Spent 19.33s on a formula simplification. DAG size of input: 42 DAG size of output: 40 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:11:51,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:12:08,015 WARN L233 SmtUtils]: Spent 6.56s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:12:10,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:12:18,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:12:21,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:12:23,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:12:50,896 WARN L233 SmtUtils]: Spent 24.51s on a formula simplification. DAG size of input: 40 DAG size of output: 38 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:13:12,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:13:14,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:13:21,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:13:25,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:13:41,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:13:44,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:13:47,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:13:49,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:13:53,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-20 11:13:53,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:53,955 INFO L93 Difference]: Finished difference Result 111 states and 142 transitions. [2022-11-20 11:13:53,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 11:13:53,956 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 21 states have internal predecessors, (51), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) Word has length 51 [2022-11-20 11:13:53,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:53,958 INFO L225 Difference]: With dead ends: 111 [2022-11-20 11:13:53,958 INFO L226 Difference]: Without dead ends: 84 [2022-11-20 11:13:53,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 82 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 278.6s TimeCoverageRelationStatistics Valid=257, Invalid=919, Unknown=26, NotChecked=204, Total=1406 [2022-11-20 11:13:53,960 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 96 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 52 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 147 IncrementalHoareTripleChecker+Unchecked, 78.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:53,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 149 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 359 Invalid, 22 Unknown, 147 Unchecked, 78.8s Time] [2022-11-20 11:13:53,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-20 11:13:53,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 56. [2022-11-20 11:13:53,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 11:13:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2022-11-20 11:13:53,982 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 51 [2022-11-20 11:13:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:53,982 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2022-11-20 11:13:53,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 21 states have internal predecessors, (51), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-20 11:13:53,983 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2022-11-20 11:13:53,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 11:13:53,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:53,984 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:13:53,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:54,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:13:54,191 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:13:54,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:54,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2021171970, now seen corresponding path program 4 times [2022-11-20 11:13:54,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:13:54,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710899596] [2022-11-20 11:13:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:54,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:13:54,208 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:13:54,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059794457] [2022-11-20 11:13:54,209 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:13:54,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:13:54,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:54,211 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:13:54,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7b6b4ea-198d-439e-b90c-acf6e8bdaefa/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 11:15:48,996 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:15:48,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:15:49,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-20 11:15:49,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:17:01,939 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse29 (mod |c_ULTIMATE.start_main_~b~0#1| 536870912))) (let ((.cse30 (mod .cse29 1073741824))) (let ((.cse23 (* (mod .cse30 2147483648) 2)) (.cse28 (* 2 .cse30))) (and (= 6 |c_ULTIMATE.start_main_~q~0#1|) (exists ((|aux_div_ULTIMATE.start_main_~B~0#1_44| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331_162| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| Int) (|aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213| Int) (|aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66| Int)) (let ((.cse17 (* 1073741824 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331|)) (.cse18 (* 1073741824 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325|)) (.cse19 (* 1073741824 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330|)) (.cse20 (* 1073741824 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349|)) (.cse21 (* 1073741824 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213|)) (.cse22 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331_162| 2147483648))) (let ((.cse10 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331| 2147483648)) (.cse5 (* 6 |c_ULTIMATE.start_main_~b~0#1|)) (.cse13 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101| 1610612736)) (.cse9 (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 2684354560)) (.cse0 (+ .cse17 .cse18 .cse19 .cse20 .cse21 (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277| 4294967296) |c_ULTIMATE.start_main_~b~0#1| .cse22)) (.cse11 (* 1073741824 |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55|)) (.cse25 (* 1610612736 |aux_div_ULTIMATE.start_main_~B~0#1_44|)) (.cse4 (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 2147483648)) (.cse24 (+ .cse17 .cse18 .cse19 .cse20 .cse21 |c_ULTIMATE.start_main_~b~0#1| .cse22)) (.cse12 (+ |c_ULTIMATE.start_main_~b~0#1| .cse22)) (.cse27 (* 536870912 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66|)) (.cse26 (+ .cse17 .cse19 |c_ULTIMATE.start_main_~b~0#1| .cse22)) (.cse7 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101| 536870912)) (.cse8 (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 536870912)) (.cse6 (+ .cse17 |c_ULTIMATE.start_main_~b~0#1| .cse22)) (.cse1 (* 1073741824 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66|)) (.cse14 (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 1610612736)) (.cse3 (* 1073741824 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101|)) (.cse15 (* 1073741824 |aux_div_ULTIMATE.start_main_~B~0#1_44|)) (.cse16 (+ .cse17 .cse18 .cse19 .cse20 |c_ULTIMATE.start_main_~b~0#1| .cse22)) (.cse2 (* |aux_div_ULTIMATE.start_main_~B~0#1_44| 2147483648))) (and (< .cse0 (+ .cse1 536870912 .cse2 .cse3 .cse4)) (= (+ (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349| 6442450944) .cse5 (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331| 6442450944) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331_162| 12884901888) (* 17179869184 |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277|) |c_ULTIMATE.start_main_~r~0#1| (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330| 6442450944) (* 6442450944 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325|) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213| 4294967296)) (+ (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 13958643712) (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66| 6442450944) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101| 6442450944) (* 10737418240 |aux_div_ULTIMATE.start_main_~B~0#1_44|) |c_ULTIMATE.start_main_~A~0#1|)) (< .cse6 (+ 1073741824 .cse7 .cse8)) (< .cse0 (+ .cse1 536870912 .cse9 .cse2 .cse3)) (< (+ (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 21474836480) (* 8589934592 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101|) (* 17179869184 |aux_div_ULTIMATE.start_main_~B~0#1_44|) (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66| 12884901888) (mod (+ .cse10 .cse11 .cse5 .cse1 |c_ULTIMATE.start_main_~r~0#1| (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330| 2147483648) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101| 2147483648)) 4294967296)) (+ (* 8589934592 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349|) (* 17179869184 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331_162|) (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277| 34359738368) (* 8589934592 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331|) (* 8589934592 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325|) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330| 8589934592) (* 8 |c_ULTIMATE.start_main_~b~0#1|) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213| 8589934592))) (<= 0 .cse12) (<= (+ .cse13 .cse1 .cse14 .cse15) .cse16) (< .cse16 (+ 1073741824 .cse1 .cse14 .cse3 .cse15)) (not (= (mod (+ (* 3221225472 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66|) .cse17 .cse18 (* 3221225472 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101|) .cse19 .cse20 .cse21 |c_ULTIMATE.start_main_~b~0#1| .cse22 .cse4 (* |aux_div_ULTIMATE.start_main_~B~0#1_44| 2684354560)) 4294967296) .cse23)) (<= .cse24 (+ (mod (+ .cse10 .cse11 .cse5 |c_ULTIMATE.start_main_~r~0#1| .cse3) 4294967296) .cse1 .cse25 .cse3 .cse4)) (< .cse16 (+ .cse13 .cse1 536870912 .cse14 .cse15)) (< .cse0 (+ 536870912 .cse9 (* 1610612736 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66|) .cse2 .cse3)) (<= (+ .cse1 .cse9 .cse2 .cse3) .cse0) (<= (+ .cse1 .cse2 .cse3 .cse4) .cse0) (<= (+ (* 536870912 |aux_div_ULTIMATE.start_main_~B~0#1_44|) .cse11 .cse1 .cse3) (+ .cse17 .cse18 .cse19 |c_ULTIMATE.start_main_~b~0#1| .cse22)) (<= (+ .cse1 .cse25 .cse3 .cse4) .cse24) (< .cse12 1073741824) (< .cse26 (+ 1073741824 .cse8 .cse27 .cse3)) (<= (+ .cse8 .cse27 .cse3) .cse26) (<= (+ .cse7 .cse8) .cse6) (<= (+ .cse1 .cse14 .cse3 .cse15) .cse16) (<= (+ (* 4294967296 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325|) (* |c_ULTIMATE.start_main_~b~0#1| 4) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331| 4294967296) (* 8589934592 |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330_331_162|) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101_349_325_330| 4294967296)) (+ (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_44_55| 4294967296) (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66| 4294967296) (* |aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_44_55_66_277_213_101| 4294967296) .cse2 (mod (+ .cse28 |c_ULTIMATE.start_main_~r~0#1| (* 4 .cse29)) 4294967296))))))) (<= .cse23 (mod (+ .cse28 |c_ULTIMATE.start_main_~r~0#1|) 4294967296)) (<= (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296) 100) (<= 0 |c_ULTIMATE.start_main_~b~0#1|) (< |c_ULTIMATE.start_main_~b~0#1| 2147483648))))) is different from false [2022-11-20 11:18:43,029 WARN L233 SmtUtils]: Spent 15.08s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)