./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc --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 64bit --witnessprinter.graph.data.programhash befb904cd2b526f469a674f619c2303531704fb38322dfe788ff99db09acbda8 --- 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-5e519f3 [2022-11-02 20:35:48,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:35:48,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:35:48,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:35:48,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:35:48,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:35:48,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:35:48,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:35:48,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:35:48,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:35:48,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:35:48,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:35:48,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:35:48,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:35:48,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:35:48,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:35:48,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:35:48,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:35:48,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:35:48,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:35:48,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:35:48,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:35:48,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:35:48,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:35:48,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:35:48,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:35:48,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:35:48,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:35:48,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:35:48,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:35:48,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:35:48,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:35:48,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:35:48,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:35:48,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:35:48,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:35:48,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:35:48,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:35:48,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:35:48,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:35:48,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:35:48,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:35:48,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:35:48,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:35:48,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:35:48,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:35:48,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:35:48,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:35:48,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:35:48,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:35:48,404 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:35:48,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:35:48,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:35:48,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:35:48,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:35:48,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:35:48,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:35:48,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:35:48,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:35:48,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:35:48,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:35:48,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:35:48,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:35:48,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:48,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:35:48,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:35:48,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:35:48,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:35:48,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:35:48,409 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:35:48,409 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:35:48,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:35:48,410 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_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> befb904cd2b526f469a674f619c2303531704fb38322dfe788ff99db09acbda8 [2022-11-02 20:35:48,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:35:48,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:35:48,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:35:48,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:35:48,750 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:35:48,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-02 20:35:48,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data/100f8ab64/f6ece1b8c31e4c1786e7cde4ec513afd/FLAGab2237333 [2022-11-02 20:35:49,735 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:35:49,735 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-02 20:35:49,762 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data/100f8ab64/f6ece1b8c31e4c1786e7cde4ec513afd/FLAGab2237333 [2022-11-02 20:35:49,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data/100f8ab64/f6ece1b8c31e4c1786e7cde4ec513afd [2022-11-02 20:35:49,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:35:49,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:35:49,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:49,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:35:49,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:35:49,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:49" (1/1) ... [2022-11-02 20:35:49,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd2e688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:49, skipping insertion in model container [2022-11-02 20:35:49,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:35:49" (1/1) ... [2022-11-02 20:35:49,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:35:49,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:35:50,280 WARN L230 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_6afbcebe-5222-49dc-9b5a-ae556060c0b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c[1014,1027] [2022-11-02 20:35:51,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:51,045 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:35:51,057 WARN L230 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_6afbcebe-5222-49dc-9b5a-ae556060c0b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c[1014,1027] [2022-11-02 20:35:51,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:35:51,313 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:35:51,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51 WrapperNode [2022-11-02 20:35:51,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:35:51,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:51,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:35:51,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:35:51,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:51,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:51,925 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3903 [2022-11-02 20:35:51,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:35:51,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:35:51,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:35:51,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:35:51,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:51,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:51,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:51,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:52,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:52,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:52,305 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:52,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:52,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:35:52,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:35:52,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:35:52,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:35:52,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (1/1) ... [2022-11-02 20:35:52,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:35:52,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:35:52,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:35:52,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:35:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:35:52,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:35:53,209 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:35:53,211 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:37:47,323 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:37:47,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:37:47,337 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:37:47,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:47 BoogieIcfgContainer [2022-11-02 20:37:47,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:37:47,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:37:47,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:37:47,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:37:47,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:35:49" (1/3) ... [2022-11-02 20:37:47,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aae705c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:47, skipping insertion in model container [2022-11-02 20:37:47,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:35:51" (2/3) ... [2022-11-02 20:37:47,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aae705c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:47, skipping insertion in model container [2022-11-02 20:37:47,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:47" (3/3) ... [2022-11-02 20:37:47,360 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-02 20:37:47,386 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:37:47,386 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:37:47,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:37:47,472 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;@17cfca21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:37:47,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:37:47,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 345 states have (on average 1.4985507246376812) internal successors, (517), 346 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:47,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:37:47,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:47,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:47,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:47,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:47,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1892373183, now seen corresponding path program 1 times [2022-11-02 20:37:47,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:47,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283710559] [2022-11-02 20:37:47,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:47,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:48,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:48,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:48,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283710559] [2022-11-02 20:37:48,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283710559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:48,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:48,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:48,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875136078] [2022-11-02 20:37:48,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:48,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:48,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:48,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:48,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:48,904 INFO L87 Difference]: Start difference. First operand has 347 states, 345 states have (on average 1.4985507246376812) internal successors, (517), 346 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:51,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:53,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:53,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:53,615 INFO L93 Difference]: Finished difference Result 969 states and 1451 transitions. [2022-11-02 20:37:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:37:53,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:37:53,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:53,638 INFO L225 Difference]: With dead ends: 969 [2022-11-02 20:37:53,641 INFO L226 Difference]: Without dead ends: 624 [2022-11-02 20:37:53,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:53,652 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 833 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:53,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1520 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2022-11-02 20:37:53,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-11-02 20:37:53,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 345. [2022-11-02 20:37:53,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.4912790697674418) internal successors, (513), 344 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 513 transitions. [2022-11-02 20:37:53,723 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 513 transitions. Word has length 17 [2022-11-02 20:37:53,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:53,723 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 513 transitions. [2022-11-02 20:37:53,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 513 transitions. [2022-11-02 20:37:53,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:37:53,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:53,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:53,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:37:53,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:53,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:53,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1391476863, now seen corresponding path program 1 times [2022-11-02 20:37:53,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:53,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151079589] [2022-11-02 20:37:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:53,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:54,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:54,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151079589] [2022-11-02 20:37:54,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151079589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:54,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:54,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:54,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937343726] [2022-11-02 20:37:54,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:54,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:54,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:54,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:54,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:54,105 INFO L87 Difference]: Start difference. First operand 345 states and 513 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:56,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:58,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:37:58,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:37:58,665 INFO L93 Difference]: Finished difference Result 965 states and 1438 transitions. [2022-11-02 20:37:58,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:37:58,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:37:58,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:37:58,670 INFO L225 Difference]: With dead ends: 965 [2022-11-02 20:37:58,670 INFO L226 Difference]: Without dead ends: 624 [2022-11-02 20:37:58,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:37:58,674 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 827 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:37:58,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1520 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2022-11-02 20:37:58,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-11-02 20:37:58,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 347. [2022-11-02 20:37:58,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.4884393063583814) internal successors, (515), 346 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:58,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 515 transitions. [2022-11-02 20:37:58,710 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 515 transitions. Word has length 17 [2022-11-02 20:37:58,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:37:58,710 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 515 transitions. [2022-11-02 20:37:58,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:37:58,711 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 515 transitions. [2022-11-02 20:37:58,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:37:58,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:37:58,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:58,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:37:58,714 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:37:58,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:58,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1649642301, now seen corresponding path program 1 times [2022-11-02 20:37:58,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:58,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952401746] [2022-11-02 20:37:58,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:58,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:59,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:59,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952401746] [2022-11-02 20:37:59,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952401746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:59,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:59,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:37:59,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259313530] [2022-11-02 20:37:59,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:59,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:37:59,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:59,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:37:59,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:37:59,120 INFO L87 Difference]: Start difference. First operand 347 states and 515 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:01,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:03,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:03,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:03,670 INFO L93 Difference]: Finished difference Result 965 states and 1437 transitions. [2022-11-02 20:38:03,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:38:03,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:03,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:03,674 INFO L225 Difference]: With dead ends: 965 [2022-11-02 20:38:03,674 INFO L226 Difference]: Without dead ends: 624 [2022-11-02 20:38:03,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:03,677 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 821 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:03,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1520 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2022-11-02 20:38:03,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-11-02 20:38:03,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 349. [2022-11-02 20:38:03,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.485632183908046) internal successors, (517), 348 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 517 transitions. [2022-11-02 20:38:03,692 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 517 transitions. Word has length 17 [2022-11-02 20:38:03,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:03,693 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 517 transitions. [2022-11-02 20:38:03,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:03,693 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 517 transitions. [2022-11-02 20:38:03,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:03,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:03,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:03,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:38:03,695 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:03,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1256615291, now seen corresponding path program 1 times [2022-11-02 20:38:03,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:03,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761623943] [2022-11-02 20:38:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:03,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:04,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:04,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761623943] [2022-11-02 20:38:04,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761623943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:04,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:04,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:04,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523678247] [2022-11-02 20:38:04,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:04,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:04,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:04,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:04,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:04,069 INFO L87 Difference]: Start difference. First operand 349 states and 517 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:06,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:08,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:08,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:08,505 INFO L93 Difference]: Finished difference Result 965 states and 1436 transitions. [2022-11-02 20:38:08,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:38:08,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:08,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:08,510 INFO L225 Difference]: With dead ends: 965 [2022-11-02 20:38:08,510 INFO L226 Difference]: Without dead ends: 624 [2022-11-02 20:38:08,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:08,513 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 815 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:08,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 1520 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2022-11-02 20:38:08,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-11-02 20:38:08,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 351. [2022-11-02 20:38:08,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.4828571428571429) internal successors, (519), 350 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:08,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 519 transitions. [2022-11-02 20:38:08,531 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 519 transitions. Word has length 17 [2022-11-02 20:38:08,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:08,531 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 519 transitions. [2022-11-02 20:38:08,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 519 transitions. [2022-11-02 20:38:08,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:08,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:08,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:08,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:38:08,534 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:08,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:08,534 INFO L85 PathProgramCache]: Analyzing trace with hash 447268665, now seen corresponding path program 1 times [2022-11-02 20:38:08,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:08,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143894316] [2022-11-02 20:38:08,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:08,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:08,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:08,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:08,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143894316] [2022-11-02 20:38:08,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143894316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:08,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:08,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:08,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347342590] [2022-11-02 20:38:08,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:08,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:08,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:08,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:08,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:08,853 INFO L87 Difference]: Start difference. First operand 351 states and 519 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:10,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:13,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:13,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:13,323 INFO L93 Difference]: Finished difference Result 965 states and 1435 transitions. [2022-11-02 20:38:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:38:13,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:13,327 INFO L225 Difference]: With dead ends: 965 [2022-11-02 20:38:13,328 INFO L226 Difference]: Without dead ends: 624 [2022-11-02 20:38:13,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:13,330 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 809 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:13,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1520 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2022-11-02 20:38:13,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-11-02 20:38:13,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 353. [2022-11-02 20:38:13,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.4801136363636365) internal successors, (521), 352 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:13,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 521 transitions. [2022-11-02 20:38:13,345 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 521 transitions. Word has length 17 [2022-11-02 20:38:13,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:13,345 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 521 transitions. [2022-11-02 20:38:13,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:13,346 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 521 transitions. [2022-11-02 20:38:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:13,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:13,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:13,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:38:13,347 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:13,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:13,348 INFO L85 PathProgramCache]: Analyzing trace with hash 504526967, now seen corresponding path program 1 times [2022-11-02 20:38:13,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:13,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309014905] [2022-11-02 20:38:13,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:13,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:13,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:13,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:13,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309014905] [2022-11-02 20:38:13,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309014905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:13,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:13,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:13,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836602520] [2022-11-02 20:38:13,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:13,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:13,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:13,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:13,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:13,709 INFO L87 Difference]: Start difference. First operand 353 states and 521 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:15,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:18,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:38:18,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:18,112 INFO L93 Difference]: Finished difference Result 965 states and 1434 transitions. [2022-11-02 20:38:18,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:38:18,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:18,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:18,117 INFO L225 Difference]: With dead ends: 965 [2022-11-02 20:38:18,117 INFO L226 Difference]: Without dead ends: 624 [2022-11-02 20:38:18,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:18,119 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 803 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:18,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 1521 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2022-11-02 20:38:18,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-11-02 20:38:18,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 355. [2022-11-02 20:38:18,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.4774011299435028) internal successors, (523), 354 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:18,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 523 transitions. [2022-11-02 20:38:18,133 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 523 transitions. Word has length 17 [2022-11-02 20:38:18,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:18,134 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 523 transitions. [2022-11-02 20:38:18,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 523 transitions. [2022-11-02 20:38:18,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:18,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:18,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:18,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:38:18,136 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:18,136 INFO L85 PathProgramCache]: Analyzing trace with hash 504586549, now seen corresponding path program 1 times [2022-11-02 20:38:18,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:18,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733530781] [2022-11-02 20:38:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:18,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:38:18,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:38:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:38:18,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:38:18,639 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:38:18,641 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:38:18,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:38:18,647 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:18,652 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:38:18,757 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 20:38:18,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:38:18 BoogieIcfgContainer [2022-11-02 20:38:18,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:38:18,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:38:18,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:38:18,809 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:38:18,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:47" (3/4) ... [2022-11-02 20:38:18,813 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:38:18,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:38:18,814 INFO L158 Benchmark]: Toolchain (without parser) took 148993.89ms. Allocated memory was 98.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 60.5MB in the beginning and 834.6MB in the end (delta: -774.1MB). Peak memory consumption was 521.2MB. Max. memory is 16.1GB. [2022-11-02 20:38:18,815 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:38:18,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1490.71ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 60.3MB in the beginning and 64.5MB in the end (delta: -4.2MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2022-11-02 20:38:18,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 607.77ms. Allocated memory was 127.9MB in the beginning and 230.7MB in the end (delta: 102.8MB). Free memory was 64.5MB in the beginning and 122.2MB in the end (delta: -57.7MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2022-11-02 20:38:18,821 INFO L158 Benchmark]: Boogie Preprocessor took 465.44ms. Allocated memory is still 230.7MB. Free memory was 122.2MB in the beginning and 107.5MB in the end (delta: 14.6MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2022-11-02 20:38:18,821 INFO L158 Benchmark]: RCFGBuilder took 114947.88ms. Allocated memory was 230.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 107.5MB in the beginning and 813.9MB in the end (delta: -706.4MB). Peak memory consumption was 834.1MB. Max. memory is 16.1GB. [2022-11-02 20:38:18,821 INFO L158 Benchmark]: TraceAbstraction took 31462.81ms. Allocated memory is still 1.4GB. Free memory was 812.8MB in the beginning and 834.6MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:38:18,822 INFO L158 Benchmark]: Witness Printer took 5.80ms. Allocated memory is still 1.4GB. Free memory is still 834.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:38:18,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1490.71ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 60.3MB in the beginning and 64.5MB in the end (delta: -4.2MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 607.77ms. Allocated memory was 127.9MB in the beginning and 230.7MB in the end (delta: 102.8MB). Free memory was 64.5MB in the beginning and 122.2MB in the end (delta: -57.7MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 465.44ms. Allocated memory is still 230.7MB. Free memory was 122.2MB in the beginning and 107.5MB in the end (delta: 14.6MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. * RCFGBuilder took 114947.88ms. Allocated memory was 230.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 107.5MB in the beginning and 813.9MB in the end (delta: -706.4MB). Peak memory consumption was 834.1MB. Max. memory is 16.1GB. * TraceAbstraction took 31462.81ms. Allocated memory is still 1.4GB. Free memory was 812.8MB in the beginning and 834.6MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.80ms. Allocated memory is still 1.4GB. Free memory is still 834.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 325, overapproximation of bitwiseAnd at line 321. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_32 = 0; [L39] const SORT_4 var_95 = 1; [L40] const SORT_4 var_96 = 0; [L41] const SORT_2 var_111 = 1; [L42] const SORT_3 var_113 = 0; [L43] const SORT_4 var_116 = 6; [L44] const SORT_2 var_126 = 0; [L45] const SORT_4 var_239 = 2; [L46] const SORT_4 var_277 = 3; [L47] const SORT_4 var_315 = 4; [L48] const SORT_4 var_353 = 5; [L49] const SORT_2 var_566 = 5; [L50] const SORT_2 var_576 = 2; [L51] const SORT_2 var_578 = 3; [L52] const SORT_2 var_580 = 4; [L54] SORT_1 input_112; [L55] SORT_1 input_120; [L56] SORT_1 input_127; [L57] SORT_1 input_133; [L58] SORT_1 input_139; [L59] SORT_1 input_145; [L60] SORT_1 input_151; [L61] SORT_1 input_157; [L62] SORT_1 input_163; [L63] SORT_1 input_169; [L64] SORT_1 input_175; [L65] SORT_1 input_181; [L66] SORT_1 input_391; [L67] SORT_1 input_395; [L68] SORT_1 input_398; [L69] SORT_1 input_399; [L70] SORT_1 input_400; [L71] SORT_1 input_401; [L72] SORT_1 input_402; [L73] SORT_1 input_403; [L74] SORT_1 input_404; [L75] SORT_1 input_405; [L76] SORT_1 input_406; [L77] SORT_1 input_407; [L78] SORT_1 input_421; [L79] SORT_1 input_427; [L80] SORT_1 input_433; [L81] SORT_1 input_439; [L82] SORT_1 input_445; [L83] SORT_1 input_451; [L84] SORT_1 input_466; [L85] SORT_1 input_484; [L86] SORT_1 input_502; [L87] SORT_1 input_520; [L88] SORT_1 input_538; [L89] SORT_1 input_556; [L91] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_2 init_7_arg_1 = var_5; [L137] state_6 = init_7_arg_1 [L138] SORT_2 init_9_arg_1 = var_5; [L139] state_8 = init_9_arg_1 [L140] SORT_2 init_11_arg_1 = var_5; [L141] state_10 = init_11_arg_1 [L142] SORT_2 init_13_arg_1 = var_5; [L143] state_12 = init_13_arg_1 [L144] SORT_2 init_15_arg_1 = var_5; [L145] state_14 = init_15_arg_1 [L146] SORT_2 init_17_arg_1 = var_5; [L147] state_16 = init_17_arg_1 [L148] SORT_2 init_19_arg_1 = var_5; [L149] state_18 = init_19_arg_1 [L150] SORT_2 init_21_arg_1 = var_5; [L151] state_20 = init_21_arg_1 [L152] SORT_2 init_23_arg_1 = var_5; [L153] state_22 = init_23_arg_1 [L154] SORT_2 init_25_arg_1 = var_5; [L155] state_24 = init_25_arg_1 [L156] SORT_2 init_27_arg_1 = var_5; [L157] state_26 = init_27_arg_1 [L158] SORT_2 init_29_arg_1 = var_5; [L159] state_28 = init_29_arg_1 [L160] SORT_2 init_31_arg_1 = var_5; [L161] state_30 = init_31_arg_1 [L162] SORT_1 init_34_arg_1 = var_32; [L163] state_33 = init_34_arg_1 [L164] SORT_1 init_36_arg_1 = var_32; [L165] state_35 = init_36_arg_1 [L166] SORT_1 init_38_arg_1 = var_32; [L167] state_37 = init_38_arg_1 [L168] SORT_1 init_40_arg_1 = var_32; [L169] state_39 = init_40_arg_1 [L170] SORT_1 init_42_arg_1 = var_32; [L171] state_41 = init_42_arg_1 [L172] SORT_1 init_44_arg_1 = var_32; [L173] state_43 = init_44_arg_1 [L174] SORT_1 init_46_arg_1 = var_32; [L175] state_45 = init_46_arg_1 [L176] SORT_1 init_48_arg_1 = var_32; [L177] state_47 = init_48_arg_1 [L178] SORT_1 init_50_arg_1 = var_32; [L179] state_49 = init_50_arg_1 [L180] SORT_1 init_52_arg_1 = var_32; [L181] state_51 = init_52_arg_1 [L182] SORT_1 init_54_arg_1 = var_32; [L183] state_53 = init_54_arg_1 [L184] SORT_1 init_56_arg_1 = var_32; [L185] state_55 = init_56_arg_1 [L186] SORT_1 init_58_arg_1 = var_32; [L187] state_57 = init_58_arg_1 [L188] SORT_1 init_60_arg_1 = var_32; [L189] state_59 = init_60_arg_1 [L190] SORT_1 init_62_arg_1 = var_32; [L191] state_61 = init_62_arg_1 [L192] SORT_1 init_64_arg_1 = var_32; [L193] state_63 = init_64_arg_1 [L194] SORT_1 init_66_arg_1 = var_32; [L195] state_65 = init_66_arg_1 [L196] SORT_1 init_68_arg_1 = var_32; [L197] state_67 = init_68_arg_1 [L198] SORT_1 init_70_arg_1 = var_32; [L199] state_69 = init_70_arg_1 [L200] SORT_1 init_72_arg_1 = var_32; [L201] state_71 = init_72_arg_1 [L202] SORT_1 init_74_arg_1 = var_32; [L203] state_73 = init_74_arg_1 [L204] SORT_1 init_76_arg_1 = var_32; [L205] state_75 = init_76_arg_1 [L206] SORT_1 init_78_arg_1 = var_32; [L207] state_77 = init_78_arg_1 [L208] SORT_1 init_80_arg_1 = var_32; [L209] state_79 = init_80_arg_1 [L210] SORT_1 init_82_arg_1 = var_32; [L211] state_81 = init_82_arg_1 [L212] SORT_1 init_84_arg_1 = var_32; [L213] state_83 = init_84_arg_1 [L214] SORT_1 init_86_arg_1 = var_32; [L215] state_85 = init_86_arg_1 [L216] SORT_1 init_88_arg_1 = var_32; [L217] state_87 = init_88_arg_1 [L218] SORT_1 init_90_arg_1 = var_32; [L219] state_89 = init_90_arg_1 [L220] SORT_1 init_92_arg_1 = var_32; [L221] state_91 = init_92_arg_1 [L222] SORT_1 init_94_arg_1 = var_32; [L223] state_93 = init_94_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0] [L226] input_112 = __VERIFIER_nondet_uchar() [L227] input_120 = __VERIFIER_nondet_uchar() [L228] input_127 = __VERIFIER_nondet_uchar() [L229] input_133 = __VERIFIER_nondet_uchar() [L230] input_139 = __VERIFIER_nondet_uchar() [L231] input_145 = __VERIFIER_nondet_uchar() [L232] input_151 = __VERIFIER_nondet_uchar() [L233] input_157 = __VERIFIER_nondet_uchar() [L234] input_163 = __VERIFIER_nondet_uchar() [L235] input_169 = __VERIFIER_nondet_uchar() [L236] input_175 = __VERIFIER_nondet_uchar() [L237] input_181 = __VERIFIER_nondet_uchar() [L238] input_391 = __VERIFIER_nondet_uchar() [L239] input_391 = input_391 & mask_SORT_1 [L240] input_395 = __VERIFIER_nondet_uchar() [L241] input_395 = input_395 & mask_SORT_1 [L242] input_398 = __VERIFIER_nondet_uchar() [L243] input_398 = input_398 & mask_SORT_1 [L244] input_399 = __VERIFIER_nondet_uchar() [L245] input_399 = input_399 & mask_SORT_1 [L246] input_400 = __VERIFIER_nondet_uchar() [L247] input_400 = input_400 & mask_SORT_1 [L248] input_401 = __VERIFIER_nondet_uchar() [L249] input_401 = input_401 & mask_SORT_1 [L250] input_402 = __VERIFIER_nondet_uchar() [L251] input_402 = input_402 & mask_SORT_1 [L252] input_403 = __VERIFIER_nondet_uchar() [L253] input_403 = input_403 & mask_SORT_1 [L254] input_404 = __VERIFIER_nondet_uchar() [L255] input_404 = input_404 & mask_SORT_1 [L256] input_405 = __VERIFIER_nondet_uchar() [L257] input_405 = input_405 & mask_SORT_1 [L258] input_406 = __VERIFIER_nondet_uchar() [L259] input_406 = input_406 & mask_SORT_1 [L260] input_407 = __VERIFIER_nondet_uchar() [L261] input_407 = input_407 & mask_SORT_1 [L262] input_421 = __VERIFIER_nondet_uchar() [L263] input_421 = input_421 & mask_SORT_1 [L264] input_427 = __VERIFIER_nondet_uchar() [L265] input_427 = input_427 & mask_SORT_1 [L266] input_433 = __VERIFIER_nondet_uchar() [L267] input_433 = input_433 & mask_SORT_1 [L268] input_439 = __VERIFIER_nondet_uchar() [L269] input_439 = input_439 & mask_SORT_1 [L270] input_445 = __VERIFIER_nondet_uchar() [L271] input_445 = input_445 & mask_SORT_1 [L272] input_451 = __VERIFIER_nondet_uchar() [L273] input_451 = input_451 & mask_SORT_1 [L274] input_466 = __VERIFIER_nondet_uchar() [L275] input_484 = __VERIFIER_nondet_uchar() [L276] input_502 = __VERIFIER_nondet_uchar() [L277] input_520 = __VERIFIER_nondet_uchar() [L278] input_538 = __VERIFIER_nondet_uchar() [L279] input_556 = __VERIFIER_nondet_uchar() [L282] SORT_1 var_97_arg_0 = state_41; [L283] SORT_4 var_97_arg_1 = var_95; [L284] SORT_4 var_97_arg_2 = var_96; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0] [L285] EXPR var_97_arg_0 ? var_97_arg_1 : var_97_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97_arg_0=0, var_97_arg_0 ? var_97_arg_1 : var_97_arg_2=0, var_97_arg_1=1, var_97_arg_2=0] [L285] SORT_4 var_97 = var_97_arg_0 ? var_97_arg_1 : var_97_arg_2; [L286] SORT_1 var_98_arg_0 = state_51; [L287] SORT_4 var_98_arg_1 = var_95; [L288] SORT_4 var_98_arg_2 = var_96; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98_arg_0=0, var_98_arg_1=1, var_98_arg_2=0] [L289] EXPR var_98_arg_0 ? var_98_arg_1 : var_98_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98_arg_0=0, var_98_arg_0 ? var_98_arg_1 : var_98_arg_2=0, var_98_arg_1=1, var_98_arg_2=0] [L289] SORT_4 var_98 = var_98_arg_0 ? var_98_arg_1 : var_98_arg_2; [L290] SORT_4 var_99_arg_0 = var_97; [L291] SORT_4 var_99_arg_1 = var_98; [L292] SORT_4 var_99 = var_99_arg_0 + var_99_arg_1; [L293] SORT_1 var_100_arg_0 = state_61; [L294] SORT_4 var_100_arg_1 = var_95; [L295] SORT_4 var_100_arg_2 = var_96; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_100_arg_0=0, var_100_arg_1=1, var_100_arg_2=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98=0, var_98_arg_0=0, var_98_arg_1=1, var_98_arg_2=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0] [L296] EXPR var_100_arg_0 ? var_100_arg_1 : var_100_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_100_arg_0=0, var_100_arg_0 ? var_100_arg_1 : var_100_arg_2=0, var_100_arg_1=1, var_100_arg_2=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98=0, var_98_arg_0=0, var_98_arg_1=1, var_98_arg_2=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0] [L296] SORT_4 var_100 = var_100_arg_0 ? var_100_arg_1 : var_100_arg_2; [L297] SORT_4 var_101_arg_0 = var_99; [L298] SORT_4 var_101_arg_1 = var_100; [L299] SORT_4 var_101 = var_101_arg_0 + var_101_arg_1; [L300] SORT_1 var_102_arg_0 = state_71; [L301] SORT_4 var_102_arg_1 = var_95; [L302] SORT_4 var_102_arg_2 = var_96; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_100=0, var_100_arg_0=0, var_100_arg_1=1, var_100_arg_2=0, var_101=0, var_101_arg_0=0, var_101_arg_1=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98=0, var_98_arg_0=0, var_98_arg_1=1, var_98_arg_2=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0] [L303] EXPR var_102_arg_0 ? var_102_arg_1 : var_102_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_100=0, var_100_arg_0=0, var_100_arg_1=1, var_100_arg_2=0, var_101=0, var_101_arg_0=0, var_101_arg_1=0, var_102_arg_0=0, var_102_arg_0 ? var_102_arg_1 : var_102_arg_2=0, var_102_arg_1=1, var_102_arg_2=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98=0, var_98_arg_0=0, var_98_arg_1=1, var_98_arg_2=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0] [L303] SORT_4 var_102 = var_102_arg_0 ? var_102_arg_1 : var_102_arg_2; [L304] SORT_4 var_103_arg_0 = var_101; [L305] SORT_4 var_103_arg_1 = var_102; [L306] SORT_4 var_103 = var_103_arg_0 + var_103_arg_1; [L307] SORT_1 var_104_arg_0 = state_81; [L308] SORT_4 var_104_arg_1 = var_95; [L309] SORT_4 var_104_arg_2 = var_96; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_100=0, var_100_arg_0=0, var_100_arg_1=1, var_100_arg_2=0, var_101=0, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104_arg_0=0, var_104_arg_1=1, var_104_arg_2=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98=0, var_98_arg_0=0, var_98_arg_1=1, var_98_arg_2=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0] [L310] EXPR var_104_arg_0 ? var_104_arg_1 : var_104_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_100=0, var_100_arg_0=0, var_100_arg_1=1, var_100_arg_2=0, var_101=0, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104_arg_0=0, var_104_arg_0 ? var_104_arg_1 : var_104_arg_2=0, var_104_arg_1=1, var_104_arg_2=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98=0, var_98_arg_0=0, var_98_arg_1=1, var_98_arg_2=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0] [L310] SORT_4 var_104 = var_104_arg_0 ? var_104_arg_1 : var_104_arg_2; [L311] SORT_4 var_105_arg_0 = var_103; [L312] SORT_4 var_105_arg_1 = var_104; [L313] SORT_4 var_105 = var_105_arg_0 + var_105_arg_1; [L314] SORT_1 var_106_arg_0 = state_91; [L315] SORT_4 var_106_arg_1 = var_95; [L316] SORT_4 var_106_arg_2 = var_96; VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_100=0, var_100_arg_0=0, var_100_arg_1=1, var_100_arg_2=0, var_101=0, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104=0, var_104_arg_0=0, var_104_arg_1=1, var_104_arg_2=0, var_105=0, var_105_arg_0=0, var_105_arg_1=0, var_106_arg_0=0, var_106_arg_1=1, var_106_arg_2=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98=0, var_98_arg_0=0, var_98_arg_1=1, var_98_arg_2=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0] [L317] EXPR var_106_arg_0 ? var_106_arg_1 : var_106_arg_2 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, input_112=16, input_120=2, input_127=6, input_133=4, input_139=12, input_145=15, input_151=1, input_157=18, input_163=14, input_169=9, input_175=11, input_181=10, input_391=1, input_395=1, input_398=1, input_399=0, input_400=0, input_401=0, input_402=0, input_403=0, input_404=0, input_405=0, input_406=0, input_407=1, input_421=0, input_427=0, input_433=0, input_439=0, input_445=0, input_451=0, input_466=8, input_484=5, input_502=3, input_520=13, input_538=17, input_556=7, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_100=0, var_100_arg_0=0, var_100_arg_1=1, var_100_arg_2=0, var_101=0, var_101_arg_0=0, var_101_arg_1=0, var_102=0, var_102_arg_0=0, var_102_arg_1=1, var_102_arg_2=0, var_103=0, var_103_arg_0=0, var_103_arg_1=0, var_104=0, var_104_arg_0=0, var_104_arg_1=1, var_104_arg_2=0, var_105=0, var_105_arg_0=0, var_105_arg_1=0, var_106_arg_0=0, var_106_arg_0 ? var_106_arg_1 : var_106_arg_2=0, var_106_arg_1=1, var_106_arg_2=0, var_111=1, var_113=0, var_116=6, var_126=0, var_239=2, var_277=3, var_315=4, var_32=0, var_353=5, var_5=0, var_566=5, var_576=2, var_578=3, var_580=4, var_95=1, var_96=0, var_97=0, var_97_arg_0=0, var_97_arg_1=1, var_97_arg_2=0, var_98=0, var_98_arg_0=0, var_98_arg_1=1, var_98_arg_2=0, var_99=0, var_99_arg_0=0, var_99_arg_1=0] [L317] SORT_4 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L318] SORT_4 var_107_arg_0 = var_105; [L319] SORT_4 var_107_arg_1 = var_106; [L320] SORT_4 var_107 = var_107_arg_0 + var_107_arg_1; [L321] var_107 = var_107 & mask_SORT_4 [L322] SORT_4 var_108_arg_0 = var_107; [L323] SORT_4 var_108_arg_1 = var_95; [L324] SORT_1 var_108 = var_108_arg_0 <= var_108_arg_1; [L325] SORT_1 var_109_arg_0 = ~state_93; [L326] var_109_arg_0 = var_109_arg_0 & mask_SORT_1 [L327] SORT_1 var_109_arg_1 = ~var_108; [L328] var_109_arg_1 = var_109_arg_1 & mask_SORT_1 [L329] SORT_1 var_109 = var_109_arg_0 & var_109_arg_1; [L330] var_109 = var_109 & mask_SORT_1 [L331] SORT_1 bad_110_arg_0 = var_109; [L332] CALL __VERIFIER_assert(!(bad_110_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 347 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 mSolverCounterUnknown, 4908 SdHoareTripleChecker+Valid, 26.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4908 mSDsluCounter, 9121 SdHoareTripleChecker+Invalid, 26.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6073 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3048 mSDtfsCounter, 47 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=355occurred in iteration=6, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1644 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:38:19,080 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-02 20:38:19,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc --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 64bit --witnessprinter.graph.data.programhash befb904cd2b526f469a674f619c2303531704fb38322dfe788ff99db09acbda8 --- 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-5e519f3 [2022-11-02 20:38:21,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:38:21,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:38:21,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:38:21,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:38:21,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:38:21,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:38:21,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:38:21,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:38:21,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:38:21,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:38:21,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:38:21,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:38:21,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:38:21,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:38:21,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:38:21,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:38:21,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:38:21,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:38:21,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:38:21,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:38:21,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:38:21,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:38:21,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:38:21,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:38:21,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:38:21,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:38:21,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:38:21,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:38:21,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:38:21,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:38:21,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:38:21,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:38:21,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:38:21,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:38:21,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:38:21,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:38:21,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:38:21,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:38:21,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:38:21,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:38:21,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 20:38:21,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:38:21,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:38:21,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:38:21,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:38:21,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:38:21,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:38:21,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:38:21,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:38:21,934 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:38:21,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:38:21,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:38:21,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:38:21,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:38:21,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:38:21,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:38:21,937 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:38:21,937 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:38:21,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:38:21,938 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:38:21,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:38:21,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:38:21,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:38:21,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:38:21,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:38:21,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:38:21,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:38:21,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:38:21,941 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:38:21,941 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:38:21,941 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:38:21,942 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:38:21,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:38:21,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:38:21,943 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> befb904cd2b526f469a674f619c2303531704fb38322dfe788ff99db09acbda8 [2022-11-02 20:38:22,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:38:22,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:38:22,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:38:22,414 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:38:22,415 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:38:22,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-02 20:38:22,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data/6448cc0c1/33fc0ed9ccbf42a6894a81f03d68f585/FLAG0e96687b4 [2022-11-02 20:38:23,452 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:38:23,454 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-02 20:38:23,493 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data/6448cc0c1/33fc0ed9ccbf42a6894a81f03d68f585/FLAG0e96687b4 [2022-11-02 20:38:23,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/data/6448cc0c1/33fc0ed9ccbf42a6894a81f03d68f585 [2022-11-02 20:38:23,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:38:23,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:38:23,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:38:23,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:38:23,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:38:23,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:38:23" (1/1) ... [2022-11-02 20:38:23,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6587ce98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:23, skipping insertion in model container [2022-11-02 20:38:23,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:38:23" (1/1) ... [2022-11-02 20:38:23,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:38:23,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:38:24,006 WARN L230 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_6afbcebe-5222-49dc-9b5a-ae556060c0b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c[1014,1027] [2022-11-02 20:38:24,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:38:24,800 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:38:24,814 WARN L230 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_6afbcebe-5222-49dc-9b5a-ae556060c0b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.7.prop1-func-interl.c[1014,1027] [2022-11-02 20:38:25,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:38:25,106 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:38:25,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25 WrapperNode [2022-11-02 20:38:25,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:38:25,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:38:25,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:38:25,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:38:25,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,447 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3903 [2022-11-02 20:38:25,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:38:25,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:38:25,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:38:25,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:38:25,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,744 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:38:25,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:38:25,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:38:25,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:38:25,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (1/1) ... [2022-11-02 20:38:25,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:38:25,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:38:25,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:38:25,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:38:26,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:38:26,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:38:26,872 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:38:26,875 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:38:31,341 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:38:31,361 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:38:31,362 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:38:31,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:38:31 BoogieIcfgContainer [2022-11-02 20:38:31,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:38:31,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:38:31,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:38:31,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:38:31,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:38:23" (1/3) ... [2022-11-02 20:38:31,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5ad3ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:38:31, skipping insertion in model container [2022-11-02 20:38:31,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:38:25" (2/3) ... [2022-11-02 20:38:31,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5ad3ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:38:31, skipping insertion in model container [2022-11-02 20:38:31,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:38:31" (3/3) ... [2022-11-02 20:38:31,379 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.7.prop1-func-interl.c [2022-11-02 20:38:31,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:38:31,404 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:38:31,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:38:31,515 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;@9ef128e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:38:31,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:38:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 345 states have (on average 1.4985507246376812) internal successors, (517), 346 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:31,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:31,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:31,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:31,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:31,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1892373183, now seen corresponding path program 1 times [2022-11-02 20:38:31,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:31,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638275644] [2022-11-02 20:38:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:31,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:31,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:31,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:31,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:38:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:32,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:38:32,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:32,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:32,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:32,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:32,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638275644] [2022-11-02 20:38:32,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638275644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:32,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:32,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:32,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653177258] [2022-11-02 20:38:32,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:32,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:32,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:32,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:32,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:32,653 INFO L87 Difference]: Start difference. First operand has 347 states, 345 states have (on average 1.4985507246376812) internal successors, (517), 346 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:33,172 INFO L93 Difference]: Finished difference Result 1369 states and 2051 transitions. [2022-11-02 20:38:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:38:33,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:33,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:33,197 INFO L225 Difference]: With dead ends: 1369 [2022-11-02 20:38:33,198 INFO L226 Difference]: Without dead ends: 1024 [2022-11-02 20:38:33,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:33,210 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1519 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:33,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 2023 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:38:33,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-11-02 20:38:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 345. [2022-11-02 20:38:33,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.4912790697674418) internal successors, (513), 344 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 513 transitions. [2022-11-02 20:38:33,321 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 513 transitions. Word has length 17 [2022-11-02 20:38:33,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:33,322 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 513 transitions. [2022-11-02 20:38:33,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 513 transitions. [2022-11-02 20:38:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:33,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:33,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:33,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:33,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:33,541 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:33,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:33,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1391476863, now seen corresponding path program 1 times [2022-11-02 20:38:33,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:33,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150078875] [2022-11-02 20:38:33,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:33,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:33,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:33,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:33,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:38:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:34,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:38:34,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:34,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:34,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:34,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150078875] [2022-11-02 20:38:34,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150078875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:34,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:34,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:34,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777936936] [2022-11-02 20:38:34,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:34,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:34,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:34,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:34,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:34,491 INFO L87 Difference]: Start difference. First operand 345 states and 513 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:34,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:34,862 INFO L93 Difference]: Finished difference Result 1365 states and 2035 transitions. [2022-11-02 20:38:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:38:34,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:34,869 INFO L225 Difference]: With dead ends: 1365 [2022-11-02 20:38:34,870 INFO L226 Difference]: Without dead ends: 1024 [2022-11-02 20:38:34,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:34,878 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 1513 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:34,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 2022 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:38:34,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-11-02 20:38:34,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 347. [2022-11-02 20:38:34,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.4884393063583814) internal successors, (515), 346 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 515 transitions. [2022-11-02 20:38:34,909 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 515 transitions. Word has length 17 [2022-11-02 20:38:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:34,910 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 515 transitions. [2022-11-02 20:38:34,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:34,911 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 515 transitions. [2022-11-02 20:38:34,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:34,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:34,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:34,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:35,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:35,129 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:35,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:35,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1649642301, now seen corresponding path program 1 times [2022-11-02 20:38:35,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:35,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425042513] [2022-11-02 20:38:35,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:35,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:35,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:35,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:35,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:38:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:36,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:38:36,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:36,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:36,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:36,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425042513] [2022-11-02 20:38:36,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425042513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:36,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:36,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:36,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929845520] [2022-11-02 20:38:36,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:36,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:36,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:36,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:36,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:36,079 INFO L87 Difference]: Start difference. First operand 347 states and 515 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:36,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:36,412 INFO L93 Difference]: Finished difference Result 1365 states and 2034 transitions. [2022-11-02 20:38:36,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:38:36,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:36,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:36,419 INFO L225 Difference]: With dead ends: 1365 [2022-11-02 20:38:36,419 INFO L226 Difference]: Without dead ends: 1024 [2022-11-02 20:38:36,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:36,422 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 1507 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:36,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 2021 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:38:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-11-02 20:38:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 349. [2022-11-02 20:38:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.485632183908046) internal successors, (517), 348 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:36,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 517 transitions. [2022-11-02 20:38:36,445 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 517 transitions. Word has length 17 [2022-11-02 20:38:36,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:36,446 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 517 transitions. [2022-11-02 20:38:36,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:36,446 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 517 transitions. [2022-11-02 20:38:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:36,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:36,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:36,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:36,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:36,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:36,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:36,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1256615291, now seen corresponding path program 1 times [2022-11-02 20:38:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:36,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708433952] [2022-11-02 20:38:36,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:36,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:36,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:36,675 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:36,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:38:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:37,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:38:37,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:37,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:37,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:37,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708433952] [2022-11-02 20:38:37,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708433952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:37,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:37,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:37,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061607992] [2022-11-02 20:38:37,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:37,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:37,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:37,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:37,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:37,551 INFO L87 Difference]: Start difference. First operand 349 states and 517 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:37,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:37,851 INFO L93 Difference]: Finished difference Result 1365 states and 2033 transitions. [2022-11-02 20:38:37,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:38:37,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:37,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:37,857 INFO L225 Difference]: With dead ends: 1365 [2022-11-02 20:38:37,858 INFO L226 Difference]: Without dead ends: 1024 [2022-11-02 20:38:37,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:37,860 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 1501 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:37,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 2020 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:38:37,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-11-02 20:38:37,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 351. [2022-11-02 20:38:37,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.4828571428571429) internal successors, (519), 350 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 519 transitions. [2022-11-02 20:38:37,876 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 519 transitions. Word has length 17 [2022-11-02 20:38:37,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:37,877 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 519 transitions. [2022-11-02 20:38:37,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 519 transitions. [2022-11-02 20:38:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:37,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:37,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:37,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:38,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:38,093 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:38,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:38,094 INFO L85 PathProgramCache]: Analyzing trace with hash 447268665, now seen corresponding path program 1 times [2022-11-02 20:38:38,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:38,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647817269] [2022-11-02 20:38:38,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:38,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:38,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:38,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:38,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:38:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:38,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:38:38,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:38,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:38,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:38,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:38,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647817269] [2022-11-02 20:38:38,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647817269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:38,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:38,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:38,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502534416] [2022-11-02 20:38:38,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:38,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:38,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:38,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:38,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:38,884 INFO L87 Difference]: Start difference. First operand 351 states and 519 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:39,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:39,175 INFO L93 Difference]: Finished difference Result 1365 states and 2032 transitions. [2022-11-02 20:38:39,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:38:39,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:39,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:39,181 INFO L225 Difference]: With dead ends: 1365 [2022-11-02 20:38:39,181 INFO L226 Difference]: Without dead ends: 1024 [2022-11-02 20:38:39,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:39,184 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1495 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:39,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 2019 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-11-02 20:38:39,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 353. [2022-11-02 20:38:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.4801136363636365) internal successors, (521), 352 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 521 transitions. [2022-11-02 20:38:39,200 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 521 transitions. Word has length 17 [2022-11-02 20:38:39,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:39,200 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 521 transitions. [2022-11-02 20:38:39,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:39,201 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 521 transitions. [2022-11-02 20:38:39,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:39,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:39,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:39,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:39,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:39,417 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:39,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:39,417 INFO L85 PathProgramCache]: Analyzing trace with hash 504526967, now seen corresponding path program 1 times [2022-11-02 20:38:39,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:39,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188278311] [2022-11-02 20:38:39,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:39,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:39,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:39,422 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:39,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:38:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:40,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:38:40,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:40,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:40,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:40,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188278311] [2022-11-02 20:38:40,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188278311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:40,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:40,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:40,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695965630] [2022-11-02 20:38:40,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:40,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:40,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:40,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:40,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:40,178 INFO L87 Difference]: Start difference. First operand 353 states and 521 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:40,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:40,455 INFO L93 Difference]: Finished difference Result 1365 states and 2031 transitions. [2022-11-02 20:38:40,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:38:40,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:40,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:40,463 INFO L225 Difference]: With dead ends: 1365 [2022-11-02 20:38:40,463 INFO L226 Difference]: Without dead ends: 1024 [2022-11-02 20:38:40,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:40,465 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 1489 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:40,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 2021 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:38:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-11-02 20:38:40,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 355. [2022-11-02 20:38:40,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.4774011299435028) internal successors, (523), 354 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:40,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 523 transitions. [2022-11-02 20:38:40,482 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 523 transitions. Word has length 17 [2022-11-02 20:38:40,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:40,482 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 523 transitions. [2022-11-02 20:38:40,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:40,483 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 523 transitions. [2022-11-02 20:38:40,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-02 20:38:40,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:40,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:40,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:40,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:40,697 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:40,698 INFO L85 PathProgramCache]: Analyzing trace with hash 504586549, now seen corresponding path program 1 times [2022-11-02 20:38:40,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:40,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879474332] [2022-11-02 20:38:40,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:40,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:40,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:40,701 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:40,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:38:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:41,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-02 20:38:41,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:42,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:42,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:42,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:42,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879474332] [2022-11-02 20:38:42,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879474332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:42,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:42,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-02 20:38:42,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533814567] [2022-11-02 20:38:42,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:42,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:38:42,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:42,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:38:42,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:38:42,322 INFO L87 Difference]: Start difference. First operand 355 states and 523 transitions. Second operand has 16 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:53,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:53,798 INFO L93 Difference]: Finished difference Result 2498 states and 3709 transitions. [2022-11-02 20:38:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-02 20:38:53,800 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-02 20:38:53,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:53,808 INFO L225 Difference]: With dead ends: 2498 [2022-11-02 20:38:53,809 INFO L226 Difference]: Without dead ends: 2496 [2022-11-02 20:38:53,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2447 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1454, Invalid=5518, Unknown=0, NotChecked=0, Total=6972 [2022-11-02 20:38:53,813 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 6543 mSDsluCounter, 13033 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6543 SdHoareTripleChecker+Valid, 13546 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:53,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6543 Valid, 13546 Invalid, 1408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [78 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-02 20:38:53,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-11-02 20:38:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 367. [2022-11-02 20:38:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 366 states have (on average 1.4754098360655739) internal successors, (540), 366 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 540 transitions. [2022-11-02 20:38:53,844 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 540 transitions. Word has length 17 [2022-11-02 20:38:53,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:53,845 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 540 transitions. [2022-11-02 20:38:53,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 540 transitions. [2022-11-02 20:38:53,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:38:53,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:53,875 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:53,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:54,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:54,097 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:54,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:54,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1084816145, now seen corresponding path program 1 times [2022-11-02 20:38:54,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:54,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830769081] [2022-11-02 20:38:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:54,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:54,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:54,104 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:54,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 20:38:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:56,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 20:38:56,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:56,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:38:56,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:38:56,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830769081] [2022-11-02 20:38:56,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830769081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:38:56,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:38:56,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:38:56,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256889505] [2022-11-02 20:38:56,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:56,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:38:56,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:38:56,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:38:56,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:38:56,956 INFO L87 Difference]: Start difference. First operand 367 states and 540 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:58,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:38:58,749 INFO L93 Difference]: Finished difference Result 1047 states and 1555 transitions. [2022-11-02 20:38:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:38:58,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2022-11-02 20:38:58,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:38:58,754 INFO L225 Difference]: With dead ends: 1047 [2022-11-02 20:38:58,755 INFO L226 Difference]: Without dead ends: 694 [2022-11-02 20:38:58,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:38:58,756 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 486 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:38:58,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1245 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-02 20:38:58,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-11-02 20:38:58,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 371. [2022-11-02 20:38:58,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.4702702702702704) internal successors, (544), 370 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:58,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 544 transitions. [2022-11-02 20:38:58,773 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 544 transitions. Word has length 356 [2022-11-02 20:38:58,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:38:58,773 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 544 transitions. [2022-11-02 20:38:58,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:38:58,774 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 544 transitions. [2022-11-02 20:38:58,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:38:58,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:38:58,786 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:58,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:58,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:38:58,987 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:38:58,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:58,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1104836721, now seen corresponding path program 1 times [2022-11-02 20:38:58,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:38:58,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753937819] [2022-11-02 20:38:58,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:58,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:38:58,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:38:58,992 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:38:58,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 20:39:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:01,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:39:01,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:01,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:39:01,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:39:01,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753937819] [2022-11-02 20:39:01,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753937819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:01,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:01,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:39:01,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773594530] [2022-11-02 20:39:01,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:01,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:39:01,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:39:01,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:39:01,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:39:01,841 INFO L87 Difference]: Start difference. First operand 371 states and 544 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:02,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:39:02,510 INFO L93 Difference]: Finished difference Result 724 states and 1070 transitions. [2022-11-02 20:39:02,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:39:02,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2022-11-02 20:39:02,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:39:02,513 INFO L225 Difference]: With dead ends: 724 [2022-11-02 20:39:02,513 INFO L226 Difference]: Without dead ends: 371 [2022-11-02 20:39:02,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:39:02,515 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 492 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:39:02,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 828 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:39:02,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-02 20:39:02,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2022-11-02 20:39:02,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.4675675675675677) internal successors, (543), 370 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 543 transitions. [2022-11-02 20:39:02,531 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 543 transitions. Word has length 356 [2022-11-02 20:39:02,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:39:02,532 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 543 transitions. [2022-11-02 20:39:02,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:02,533 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 543 transitions. [2022-11-02 20:39:02,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:39:02,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:39:02,542 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:02,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:02,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:39:02,749 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:39:02,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:02,750 INFO L85 PathProgramCache]: Analyzing trace with hash 642311283, now seen corresponding path program 1 times [2022-11-02 20:39:02,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:39:02,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420892267] [2022-11-02 20:39:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:02,755 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:39:02,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:39:02,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:39:02,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 20:39:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:05,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:39:05,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:05,667 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:05,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:39:05,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:39:05,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420892267] [2022-11-02 20:39:05,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420892267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:05,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:05,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:39:05,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539488994] [2022-11-02 20:39:05,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:05,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:39:05,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:39:05,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:39:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:39:05,672 INFO L87 Difference]: Start difference. First operand 371 states and 543 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:06,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:39:06,398 INFO L93 Difference]: Finished difference Result 724 states and 1068 transitions. [2022-11-02 20:39:06,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:39:06,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2022-11-02 20:39:06,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:39:06,401 INFO L225 Difference]: With dead ends: 724 [2022-11-02 20:39:06,401 INFO L226 Difference]: Without dead ends: 371 [2022-11-02 20:39:06,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:39:06,403 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 488 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:39:06,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 827 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:39:06,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-02 20:39:06,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2022-11-02 20:39:06,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.4648648648648648) internal successors, (542), 370 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 542 transitions. [2022-11-02 20:39:06,417 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 542 transitions. Word has length 356 [2022-11-02 20:39:06,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:39:06,418 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 542 transitions. [2022-11-02 20:39:06,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:06,418 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 542 transitions. [2022-11-02 20:39:06,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:39:06,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:39:06,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:06,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:06,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:39:06,649 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:39:06,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:06,650 INFO L85 PathProgramCache]: Analyzing trace with hash -549346955, now seen corresponding path program 1 times [2022-11-02 20:39:06,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:39:06,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634911445] [2022-11-02 20:39:06,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:06,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:39:06,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:39:06,657 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:39:06,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 20:39:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:09,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-02 20:39:09,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:09,767 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:09,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:39:09,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:39:09,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634911445] [2022-11-02 20:39:09,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634911445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:09,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:09,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:39:09,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584135970] [2022-11-02 20:39:09,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:09,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:39:09,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:39:09,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:39:09,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:39:09,771 INFO L87 Difference]: Start difference. First operand 371 states and 542 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:11,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:39:11,746 INFO L93 Difference]: Finished difference Result 1047 states and 1548 transitions. [2022-11-02 20:39:11,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:39:11,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2022-11-02 20:39:11,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:39:11,751 INFO L225 Difference]: With dead ends: 1047 [2022-11-02 20:39:11,751 INFO L226 Difference]: Without dead ends: 694 [2022-11-02 20:39:11,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:39:11,753 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 475 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:39:11,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 1246 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-02 20:39:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-11-02 20:39:11,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 379. [2022-11-02 20:39:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 378 states have (on average 1.4576719576719577) internal successors, (551), 378 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 551 transitions. [2022-11-02 20:39:11,767 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 551 transitions. Word has length 356 [2022-11-02 20:39:11,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:39:11,767 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 551 transitions. [2022-11-02 20:39:11,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 551 transitions. [2022-11-02 20:39:11,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:39:11,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:39:11,771 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:11,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:11,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:39:11,985 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:39:11,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:11,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1578518793, now seen corresponding path program 1 times [2022-11-02 20:39:11,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:39:11,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002988376] [2022-11-02 20:39:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:11,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:39:11,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:39:11,990 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:39:11,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 20:39:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:14,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:39:14,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:14,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:39:14,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:39:14,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002988376] [2022-11-02 20:39:14,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002988376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:14,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:14,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:39:14,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228514986] [2022-11-02 20:39:14,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:14,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:39:14,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:39:14,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:39:14,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:39:14,686 INFO L87 Difference]: Start difference. First operand 379 states and 551 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:15,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:39:15,371 INFO L93 Difference]: Finished difference Result 732 states and 1075 transitions. [2022-11-02 20:39:15,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:39:15,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2022-11-02 20:39:15,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:39:15,374 INFO L225 Difference]: With dead ends: 732 [2022-11-02 20:39:15,374 INFO L226 Difference]: Without dead ends: 379 [2022-11-02 20:39:15,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:39:15,375 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 482 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:39:15,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 828 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:39:15,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-02 20:39:15,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2022-11-02 20:39:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 378 states have (on average 1.4550264550264551) internal successors, (550), 378 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:15,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 550 transitions. [2022-11-02 20:39:15,387 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 550 transitions. Word has length 356 [2022-11-02 20:39:15,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:39:15,387 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 550 transitions. [2022-11-02 20:39:15,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 550 transitions. [2022-11-02 20:39:15,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:39:15,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:39:15,391 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:15,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:15,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:39:15,605 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:39:15,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:15,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1799177465, now seen corresponding path program 1 times [2022-11-02 20:39:15,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:39:15,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647021996] [2022-11-02 20:39:15,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:15,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:39:15,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:39:15,610 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:39:15,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 20:39:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:18,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-02 20:39:18,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:18,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:39:18,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:39:18,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647021996] [2022-11-02 20:39:18,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647021996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:18,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:18,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:39:18,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580809640] [2022-11-02 20:39:18,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:18,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:39:18,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:39:18,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:39:18,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:39:18,638 INFO L87 Difference]: Start difference. First operand 379 states and 550 transitions. Second operand has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:20,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:39:20,760 INFO L93 Difference]: Finished difference Result 1084 states and 1594 transitions. [2022-11-02 20:39:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:39:20,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2022-11-02 20:39:20,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:39:20,764 INFO L225 Difference]: With dead ends: 1084 [2022-11-02 20:39:20,764 INFO L226 Difference]: Without dead ends: 731 [2022-11-02 20:39:20,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:39:20,766 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 971 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:39:20,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1603 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-02 20:39:20,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-11-02 20:39:20,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 383. [2022-11-02 20:39:20,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.450261780104712) internal successors, (554), 382 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:20,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 554 transitions. [2022-11-02 20:39:20,778 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 554 transitions. Word has length 356 [2022-11-02 20:39:20,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:39:20,779 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 554 transitions. [2022-11-02 20:39:20,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 554 transitions. [2022-11-02 20:39:20,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:39:20,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:39:20,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:20,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:20,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:39:20,997 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:39:20,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:20,997 INFO L85 PathProgramCache]: Analyzing trace with hash -2000655493, now seen corresponding path program 1 times [2022-11-02 20:39:21,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:39:21,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394537938] [2022-11-02 20:39:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:21,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:39:21,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:39:21,002 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:39:21,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-02 20:39:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:23,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:39:23,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:23,695 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:23,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:39:23,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:39:23,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394537938] [2022-11-02 20:39:23,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394537938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:23,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:23,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:39:23,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814843081] [2022-11-02 20:39:23,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:23,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:39:23,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:39:23,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:39:23,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:39:23,698 INFO L87 Difference]: Start difference. First operand 383 states and 554 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:24,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:39:24,312 INFO L93 Difference]: Finished difference Result 736 states and 1077 transitions. [2022-11-02 20:39:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:39:24,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2022-11-02 20:39:24,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:39:24,315 INFO L225 Difference]: With dead ends: 736 [2022-11-02 20:39:24,315 INFO L226 Difference]: Without dead ends: 383 [2022-11-02 20:39:24,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:39:24,317 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 478 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:39:24,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 827 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:39:24,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-11-02 20:39:24,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2022-11-02 20:39:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.4476439790575917) internal successors, (553), 382 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:24,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 553 transitions. [2022-11-02 20:39:24,329 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 553 transitions. Word has length 356 [2022-11-02 20:39:24,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:39:24,329 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 553 transitions. [2022-11-02 20:39:24,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:24,330 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 553 transitions. [2022-11-02 20:39:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:39:24,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:39:24,333 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:24,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:24,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:39:24,549 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:39:24,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:24,549 INFO L85 PathProgramCache]: Analyzing trace with hash 444549757, now seen corresponding path program 1 times [2022-11-02 20:39:24,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:39:24,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193752140] [2022-11-02 20:39:24,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:24,552 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:39:24,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:39:24,554 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:39:24,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-02 20:39:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:27,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:39:27,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:27,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:39:27,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:39:27,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193752140] [2022-11-02 20:39:27,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193752140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:27,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:27,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:39:27,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643970324] [2022-11-02 20:39:27,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:27,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:39:27,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:39:27,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:39:27,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:39:27,402 INFO L87 Difference]: Start difference. First operand 383 states and 553 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:28,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:39:28,461 INFO L93 Difference]: Finished difference Result 740 states and 1080 transitions. [2022-11-02 20:39:28,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:39:28,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2022-11-02 20:39:28,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:39:28,465 INFO L225 Difference]: With dead ends: 740 [2022-11-02 20:39:28,465 INFO L226 Difference]: Without dead ends: 387 [2022-11-02 20:39:28,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:39:28,466 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 2 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:39:28,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1326 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 83 Unchecked, 1.0s Time] [2022-11-02 20:39:28,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-02 20:39:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2022-11-02 20:39:28,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.4430051813471503) internal successors, (557), 386 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 557 transitions. [2022-11-02 20:39:28,497 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 557 transitions. Word has length 356 [2022-11-02 20:39:28,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:39:28,499 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 557 transitions. [2022-11-02 20:39:28,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:28,500 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 557 transitions. [2022-11-02 20:39:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:39:28,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:39:28,502 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:28,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:28,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:39:28,703 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:39:28,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash 353239551, now seen corresponding path program 1 times [2022-11-02 20:39:28,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:39:28,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571176807] [2022-11-02 20:39:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:28,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:39:28,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:39:28,709 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:39:28,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-02 20:39:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:31,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 3249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:39:31,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:31,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:39:31,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:39:31,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571176807] [2022-11-02 20:39:31,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571176807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:31,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:31,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:39:31,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067769394] [2022-11-02 20:39:31,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:31,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:39:31,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:39:31,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:39:31,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:39:31,612 INFO L87 Difference]: Start difference. First operand 387 states and 557 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:32,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:39:32,255 INFO L93 Difference]: Finished difference Result 740 states and 1079 transitions. [2022-11-02 20:39:32,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:39:32,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2022-11-02 20:39:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:39:32,257 INFO L225 Difference]: With dead ends: 740 [2022-11-02 20:39:32,258 INFO L226 Difference]: Without dead ends: 387 [2022-11-02 20:39:32,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:39:32,259 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 472 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:39:32,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 828 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 20:39:32,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-02 20:39:32,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2022-11-02 20:39:32,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.4404145077720207) internal successors, (556), 386 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:32,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 556 transitions. [2022-11-02 20:39:32,283 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 556 transitions. Word has length 356 [2022-11-02 20:39:32,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:39:32,283 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 556 transitions. [2022-11-02 20:39:32,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:39:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 556 transitions. [2022-11-02 20:39:32,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-11-02 20:39:32,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:39:32,287 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:32,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:32,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:39:32,501 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:39:32,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1014451711, now seen corresponding path program 1 times [2022-11-02 20:39:32,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:39:32,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536448164] [2022-11-02 20:39:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:32,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:39:32,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:39:32,509 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:39:32,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6afbcebe-5222-49dc-9b5a-ae556060c0b5/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process