./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/phases_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f868671c12bae02e06798527bc7c1ed7b8332d3fee83b3ff24f9cd503da0a60 --- 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-8393723 [2022-11-18 21:02:43,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:02:43,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:02:43,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:02:43,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:02:43,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:02:43,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:02:43,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:02:43,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:02:43,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:02:43,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:02:43,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:02:43,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:02:43,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:02:43,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:02:43,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:02:43,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:02:43,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:02:43,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:02:43,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:02:43,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:02:43,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:02:43,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:02:43,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:02:43,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:02:43,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:02:43,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:02:43,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:02:43,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:02:43,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:02:43,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:02:43,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:02:43,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:02:43,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:02:43,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:02:43,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:02:43,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:02:43,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:02:43,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:02:43,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:02:43,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:02:43,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 21:02:43,371 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:02:43,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:02:43,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:02:43,372 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:02:43,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:02:43,373 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:02:43,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:02:43,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:02:43,374 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:02:43,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:02:43,376 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:02:43,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:02:43,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:02:43,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:02:43,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:02:43,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:02:43,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:02:43,378 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:02:43,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:02:43,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:02:43,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:02:43,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:02:43,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:02:43,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:02:43,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:02:43,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:02:43,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:02:43,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:02:43,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:02:43,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:02:43,382 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:02:43,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:02:43,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:02:43,383 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_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f868671c12bae02e06798527bc7c1ed7b8332d3fee83b3ff24f9cd503da0a60 [2022-11-18 21:02:43,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:02:43,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:02:43,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:02:43,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:02:43,695 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:02:43,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-acceleration/phases_1-2.c [2022-11-18 21:02:43,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/data/918720f24/9570055afb6949b1baf4ee72f063d5bb/FLAG877835365 [2022-11-18 21:02:44,204 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:02:44,205 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/sv-benchmarks/c/loop-acceleration/phases_1-2.c [2022-11-18 21:02:44,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/data/918720f24/9570055afb6949b1baf4ee72f063d5bb/FLAG877835365 [2022-11-18 21:02:44,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/data/918720f24/9570055afb6949b1baf4ee72f063d5bb [2022-11-18 21:02:44,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:02:44,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:02:44,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:02:44,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:02:44,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:02:44,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6ac662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44, skipping insertion in model container [2022-11-18 21:02:44,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:02:44,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:02:44,832 WARN L234 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_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/sv-benchmarks/c/loop-acceleration/phases_1-2.c[322,335] [2022-11-18 21:02:44,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:02:44,861 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:02:44,873 WARN L234 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_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/sv-benchmarks/c/loop-acceleration/phases_1-2.c[322,335] [2022-11-18 21:02:44,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:02:44,887 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:02:44,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44 WrapperNode [2022-11-18 21:02:44,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:02:44,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:02:44,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:02:44,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:02:44,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,919 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-11-18 21:02:44,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:02:44,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:02:44,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:02:44,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:02:44,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,937 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:02:44,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:02:44,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:02:44,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:02:44,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (1/1) ... [2022-11-18 21:02:44,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:02:44,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:02:44,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:02:44,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:02:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:02:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:02:45,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:02:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:02:45,087 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:02:45,090 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:02:45,254 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:02:45,260 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:02:45,261 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:02:45,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:02:45 BoogieIcfgContainer [2022-11-18 21:02:45,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:02:45,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:02:45,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:02:45,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:02:45,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:02:44" (1/3) ... [2022-11-18 21:02:45,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27907f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:02:45, skipping insertion in model container [2022-11-18 21:02:45,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:02:44" (2/3) ... [2022-11-18 21:02:45,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27907f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:02:45, skipping insertion in model container [2022-11-18 21:02:45,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:02:45" (3/3) ... [2022-11-18 21:02:45,275 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_1-2.c [2022-11-18 21:02:45,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:02:45,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:02:45,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:02:45,389 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;@430bf914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:02:45,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:02:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 21:02:45,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:02:45,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 21:02:45,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:02:45,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:02:45,415 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2022-11-18 21:02:45,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:02:45,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764834726] [2022-11-18 21:02:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:02:45,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:02:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:02:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:45,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:02:45,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764834726] [2022-11-18 21:02:45,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764834726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:02:45,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:02:45,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:02:45,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382288834] [2022-11-18 21:02:45,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:02:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 21:02:45,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:02:45,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 21:02:45,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:02:45,648 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:45,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:02:45,662 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-11-18 21:02:45,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:02:45,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-11-18 21:02:45,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:02:45,674 INFO L225 Difference]: With dead ends: 20 [2022-11-18 21:02:45,674 INFO L226 Difference]: Without dead ends: 8 [2022-11-18 21:02:45,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:02:45,684 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:02:45,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:02:45,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-18 21:02:45,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-18 21:02:45,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:45,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-11-18 21:02:45,715 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2022-11-18 21:02:45,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:02:45,716 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-18 21:02:45,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:45,716 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-11-18 21:02:45,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 21:02:45,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:02:45,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 21:02:45,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:02:45,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:02:45,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:02:45,718 INFO L85 PathProgramCache]: Analyzing trace with hash 889639793, now seen corresponding path program 1 times [2022-11-18 21:02:45,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:02:45,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167581159] [2022-11-18 21:02:45,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:02:45,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:02:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:02:45,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:45,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:02:45,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167581159] [2022-11-18 21:02:45,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167581159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:02:45,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:02:45,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:02:45,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102027907] [2022-11-18 21:02:45,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:02:45,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:02:45,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:02:45,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:02:45,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:02:45,898 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:45,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:02:45,918 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2022-11-18 21:02:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:02:45,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-11-18 21:02:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:02:45,919 INFO L225 Difference]: With dead ends: 16 [2022-11-18 21:02:45,920 INFO L226 Difference]: Without dead ends: 10 [2022-11-18 21:02:45,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:02:45,921 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:02:45,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:02:45,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-18 21:02:45,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-18 21:02:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:45,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-11-18 21:02:45,942 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2022-11-18 21:02:45,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:02:45,942 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-11-18 21:02:45,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-11-18 21:02:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 21:02:45,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:02:45,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:02:45,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:02:45,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:02:45,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:02:45,945 INFO L85 PathProgramCache]: Analyzing trace with hash 295691924, now seen corresponding path program 1 times [2022-11-18 21:02:45,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:02:45,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677349250] [2022-11-18 21:02:45,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:02:45,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:02:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:02:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:46,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:02:46,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677349250] [2022-11-18 21:02:46,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677349250] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:02:46,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234576569] [2022-11-18 21:02:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:02:46,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:02:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:02:46,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:02:46,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 21:02:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:02:46,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:02:46,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:02:46,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:46,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:02:46,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:46,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234576569] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:02:46,247 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:02:46,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 21:02:46,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517542205] [2022-11-18 21:02:46,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:02:46,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:02:46,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:02:46,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:02:46,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:02:46,250 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:02:46,329 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2022-11-18 21:02:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:02:46,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 8 [2022-11-18 21:02:46,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:02:46,331 INFO L225 Difference]: With dead ends: 20 [2022-11-18 21:02:46,331 INFO L226 Difference]: Without dead ends: 14 [2022-11-18 21:02:46,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:02:46,333 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:02:46,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 21 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:02:46,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-18 21:02:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-18 21:02:46,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-18 21:02:46,339 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2022-11-18 21:02:46,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:02:46,339 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-18 21:02:46,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-18 21:02:46,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 21:02:46,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:02:46,340 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:02:46,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:02:46,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:02:46,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:02:46,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:02:46,548 INFO L85 PathProgramCache]: Analyzing trace with hash 572634524, now seen corresponding path program 1 times [2022-11-18 21:02:46,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:02:46,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733983977] [2022-11-18 21:02:46,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:02:46,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:02:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:02:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:46,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:02:46,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733983977] [2022-11-18 21:02:46,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733983977] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:02:46,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103418175] [2022-11-18 21:02:46,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:02:46,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:02:46,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:02:46,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:02:46,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 21:02:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:02:46,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 21:02:46,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:02:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:46,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:02:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:47,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103418175] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:02:47,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:02:47,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2022-11-18 21:02:47,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794120694] [2022-11-18 21:02:47,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:02:47,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 21:02:47,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:02:47,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 21:02:47,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-18 21:02:47,048 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:47,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:02:47,395 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2022-11-18 21:02:47,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:02:47,396 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 21:02:47,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:02:47,397 INFO L225 Difference]: With dead ends: 26 [2022-11-18 21:02:47,397 INFO L226 Difference]: Without dead ends: 19 [2022-11-18 21:02:47,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:02:47,400 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:02:47,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:02:47,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-18 21:02:47,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-18 21:02:47,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:47,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-11-18 21:02:47,413 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 12 [2022-11-18 21:02:47,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:02:47,413 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-11-18 21:02:47,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:47,414 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-11-18 21:02:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 21:02:47,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:02:47,415 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 1, 1, 1, 1, 1, 1] [2022-11-18 21:02:47,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 21:02:47,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:02:47,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:02:47,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:02:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash -549258615, now seen corresponding path program 2 times [2022-11-18 21:02:47,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:02:47,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370361970] [2022-11-18 21:02:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:02:47,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:02:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:02:47,887 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 21:02:47,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:02:47,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370361970] [2022-11-18 21:02:47,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370361970] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:02:47,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213329234] [2022-11-18 21:02:47,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:02:47,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:02:47,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:02:47,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:02:47,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 21:02:47,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 21:02:47,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:02:47,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 21:02:47,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:02:48,108 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:48,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:02:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:48,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213329234] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:02:48,325 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:02:48,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 17 [2022-11-18 21:02:48,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361421492] [2022-11-18 21:02:48,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:02:48,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 21:02:48,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:02:48,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 21:02:48,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-11-18 21:02:48,327 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:02:49,051 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2022-11-18 21:02:49,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:02:49,054 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 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 18 [2022-11-18 21:02:49,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:02:49,055 INFO L225 Difference]: With dead ends: 36 [2022-11-18 21:02:49,055 INFO L226 Difference]: Without dead ends: 25 [2022-11-18 21:02:49,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=266, Unknown=0, NotChecked=0, Total=420 [2022-11-18 21:02:49,056 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:02:49,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 30 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:02:49,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-18 21:02:49,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-18 21:02:49,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:49,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-11-18 21:02:49,062 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 18 [2022-11-18 21:02:49,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:02:49,063 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-11-18 21:02:49,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:49,065 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-18 21:02:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 21:02:49,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:02:49,066 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 4, 1, 1, 1, 1, 1, 1] [2022-11-18 21:02:49,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:02:49,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:02:49,267 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:02:49,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:02:49,268 INFO L85 PathProgramCache]: Analyzing trace with hash 379103926, now seen corresponding path program 3 times [2022-11-18 21:02:49,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:02:49,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795193890] [2022-11-18 21:02:49,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:02:49,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:02:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:02:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 45 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 21:02:49,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:02:49,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795193890] [2022-11-18 21:02:49,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795193890] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:02:49,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130001869] [2022-11-18 21:02:49,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:02:49,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:02:49,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:02:49,448 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:02:49,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 21:02:49,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-11-18 21:02:49,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:02:49,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 21:02:49,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:02:49,666 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 24 proven. 56 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 21:02:49,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:02:50,081 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 24 proven. 56 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 21:02:50,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130001869] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:02:50,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:02:50,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 11] total 20 [2022-11-18 21:02:50,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389599460] [2022-11-18 21:02:50,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:02:50,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 21:02:50,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:02:50,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 21:02:50,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-18 21:02:50,083 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:02:53,332 INFO L93 Difference]: Finished difference Result 58 states and 77 transitions. [2022-11-18 21:02:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 21:02:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-18 21:02:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:02:53,333 INFO L225 Difference]: With dead ends: 58 [2022-11-18 21:02:53,333 INFO L226 Difference]: Without dead ends: 43 [2022-11-18 21:02:53,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=284, Invalid=472, Unknown=0, NotChecked=0, Total=756 [2022-11-18 21:02:53,335 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 37 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:02:53,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 23 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:02:53,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-18 21:02:53,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-18 21:02:53,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:53,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-18 21:02:53,355 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 24 [2022-11-18 21:02:53,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:02:53,355 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-18 21:02:53,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:02:53,356 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-18 21:02:53,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 21:02:53,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:02:53,357 INFO L195 NwaCegarLoop]: trace histogram [18, 13, 5, 1, 1, 1, 1, 1, 1] [2022-11-18 21:02:53,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 21:02:53,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:02:53,563 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:02:53,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:02:53,563 INFO L85 PathProgramCache]: Analyzing trace with hash 286774065, now seen corresponding path program 4 times [2022-11-18 21:02:53,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:02:53,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933599975] [2022-11-18 21:02:53,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:02:53,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:02:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:02:54,106 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 126 proven. 182 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 21:02:54,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:02:54,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933599975] [2022-11-18 21:02:54,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933599975] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:02:54,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877757484] [2022-11-18 21:02:54,107 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 21:02:54,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:02:54,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:02:54,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:02:54,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 21:02:54,219 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 21:02:54,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:02:54,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-18 21:02:54,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:02:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 51 proven. 272 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 21:02:54,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:02:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 51 proven. 272 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 21:02:55,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877757484] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:02:55,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:02:55,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 20] total 38 [2022-11-18 21:02:55,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064846023] [2022-11-18 21:02:55,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:02:55,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-18 21:02:55,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:02:55,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-18 21:02:55,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=994, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 21:02:55,777 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 38 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:32,248 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 122 DAG size of output: 17 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:03:32,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:32,259 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-11-18 21:03:32,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 21:03:32,260 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 38 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-11-18 21:03:32,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:32,261 INFO L225 Difference]: With dead ends: 94 [2022-11-18 21:03:32,261 INFO L226 Difference]: Without dead ends: 79 [2022-11-18 21:03:32,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 37.2s TimeCoverageRelationStatistics Valid=1058, Invalid=1912, Unknown=0, NotChecked=0, Total=2970 [2022-11-18 21:03:32,263 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 82 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:32,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 36 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 21:03:32,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-18 21:03:32,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-18 21:03:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.0769230769230769) internal successors, (84), 78 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:32,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2022-11-18 21:03:32,282 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 42 [2022-11-18 21:03:32,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:32,283 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2022-11-18 21:03:32,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 38 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:03:32,283 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2022-11-18 21:03:32,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-18 21:03:32,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:32,285 INFO L195 NwaCegarLoop]: trace histogram [36, 31, 5, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:32,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 21:03:32,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:03:32,504 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:32,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:32,504 INFO L85 PathProgramCache]: Analyzing trace with hash 195541479, now seen corresponding path program 5 times [2022-11-18 21:03:32,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:32,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081676026] [2022-11-18 21:03:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:32,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:33,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 288 proven. 992 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-18 21:03:33,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:33,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081676026] [2022-11-18 21:03:33,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081676026] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:03:33,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943837871] [2022-11-18 21:03:33,939 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 21:03:33,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:03:33,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:03:33,940 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:03:33,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 21:03:41,276 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2022-11-18 21:03:41,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:03:41,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-18 21:03:41,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:03:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:03:41,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:03:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:03:45,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943837871] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:03:45,023 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:03:45,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 39, 39] total 77 [2022-11-18 21:03:45,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732536175] [2022-11-18 21:03:45,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:03:45,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-11-18 21:03:45,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:45,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-11-18 21:03:45,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1589, Invalid=4263, Unknown=0, NotChecked=0, Total=5852 [2022-11-18 21:03:45,031 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 77 states, 77 states have (on average 2.051948051948052) internal successors, (158), 77 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:38,553 WARN L233 SmtUtils]: Spent 20.36s on a formula simplification. DAG size of input: 150 DAG size of output: 10 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:04:40,765 WARN L837 $PredicateComparison]: unable to prove that (and (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 35) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 39) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 268435455) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 268435455) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 268435455) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 268435455) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) 268435455)) is different from false [2022-11-18 21:05:17,317 WARN L233 SmtUtils]: Spent 8.89s on a formula simplification. DAG size of input: 140 DAG size of output: 12 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:05:46,727 WARN L233 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 134 DAG size of output: 10 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:07:15,893 WARN L233 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 110 DAG size of output: 10 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:10:04,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:04,876 INFO L93 Difference]: Finished difference Result 128 states and 171 transitions. [2022-11-18 21:10:04,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-11-18 21:10:04,876 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 2.051948051948052) internal successors, (158), 77 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-18 21:10:04,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:04,878 INFO L225 Difference]: With dead ends: 128 [2022-11-18 21:10:04,878 INFO L226 Difference]: Without dead ends: 113 [2022-11-18 21:10:04,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 378.6s TimeCoverageRelationStatistics Valid=2902, Invalid=6384, Unknown=30, NotChecked=190, Total=9506 [2022-11-18 21:10:04,882 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 52 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 2608 mSolverCounterSat, 819 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 2608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:10:04,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 117 Invalid, 3428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 2608 Invalid, 0 Unknown, 1 Unchecked, 5.1s Time] [2022-11-18 21:10:04,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-18 21:10:04,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2022-11-18 21:10:04,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.1964285714285714) internal successors, (134), 112 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:04,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 134 transitions. [2022-11-18 21:10:04,902 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 134 transitions. Word has length 78 [2022-11-18 21:10:04,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:04,902 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 134 transitions. [2022-11-18 21:10:04,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 2.051948051948052) internal successors, (158), 77 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:10:04,903 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 134 transitions. [2022-11-18 21:10:04,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-18 21:10:04,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:04,906 INFO L195 NwaCegarLoop]: trace histogram [53, 32, 21, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:04,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 21:10:05,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:10:05,113 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:10:05,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:05,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1658186330, now seen corresponding path program 6 times [2022-11-18 21:10:05,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:05,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761135864] [2022-11-18 21:10:05,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:05,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2809 backedges. 1353 proven. 1056 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-18 21:10:06,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:06,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761135864] [2022-11-18 21:10:06,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761135864] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:10:06,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574658158] [2022-11-18 21:10:06,928 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 21:10:06,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:10:06,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:10:06,929 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:10:06,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc088c2-0ecf-4445-ae49-f7ddb85ab326/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 21:10:46,475 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 53 check-sat command(s) [2022-11-18 21:10:46,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:10:46,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-18 21:10:46,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:10:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2809 backedges. 1260 proven. 1260 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-18 21:10:46,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:10:51,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2809 backedges. 1260 proven. 1260 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-11-18 21:10:51,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574658158] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:10:51,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:10:51,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 38, 39] total 76 [2022-11-18 21:10:51,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614246775] [2022-11-18 21:10:51,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:10:51,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-11-18 21:10:51,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:51,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-11-18 21:10:51,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1552, Invalid=4148, Unknown=0, NotChecked=0, Total=5700 [2022-11-18 21:10:51,492 INFO L87 Difference]: Start difference. First operand 113 states and 134 transitions. Second operand has 76 states, 76 states have (on average 2.0526315789473686) internal successors, (156), 76 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:56,195 WARN L233 SmtUtils]: Spent 31.56s on a formula simplification. DAG size of input: 252 DAG size of output: 10 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:11:58,221 WARN L837 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296))) (or (not (< .cse0 268435455)) (< .cse0 65521))) (let ((.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296))) (or (< .cse1 65521) (not (< .cse1 268435455)))) (let ((.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296))) (or (< .cse2 65521) (not (< .cse2 268435455)))) (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (or (< .cse3 65521) (not (< .cse3 268435455)))) (let ((.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296))) (or (< .cse4 65521) (not (< .cse4 268435455)))) (let ((.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296))) (or (< .cse5 65521) (not (< .cse5 268435455)))) (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296))) (or (< .cse6 65521) (not (< .cse6 268435455)))) (let ((.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296))) (or (< .cse7 65521) (not (< .cse7 268435455)))) (let ((.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296))) (or (< .cse8 65521) (not (< .cse8 268435455)))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296))) (or (not (< .cse9 268435455)) (< .cse9 65521))) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296))) (or (< .cse10 65521) (not (< .cse10 268435455)))) (let ((.cse11 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296))) (or (< .cse11 65521) (not (< .cse11 268435455)))) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296))) (or (< .cse12 65521) (not (< .cse12 268435455)))) (let ((.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296))) (or (< .cse13 65521) (not (< .cse13 268435455)))) (let ((.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296))) (or (not (< .cse14 268435455)) (< .cse14 65521))) (let ((.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296))) (or (< .cse15 65521) (not (< .cse15 268435455)))) (let ((.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296))) (or (< .cse16 65521) (not (< .cse16 268435455)))) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< .cse17 65521) (not (< .cse17 268435455)))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 35) 4294967296))) (or (< .cse18 65521) (not (< .cse18 268435455)))) (let ((.cse19 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse19 65521) (not (< .cse19 268435455)))) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296))) (or (not (< .cse20 268435455)) (< .cse20 65521))) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296))) (or (< .cse21 65521) (not (< .cse21 268435455)))) (let ((.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse22 65521) (not (< .cse22 268435455)))) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 65521) (let ((.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296))) (or (< .cse23 65521) (not (< .cse23 268435455)))) (let ((.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296))) (or (< .cse24 65521) (not (< .cse24 268435455)))) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296))) (or (not (< .cse25 268435455)) (< .cse25 65521))) (let ((.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296))) (or (not (< .cse26 268435455)) (< .cse26 65521))) (let ((.cse27 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse27 65521) (not (< .cse27 268435455)))) (let ((.cse28 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296))) (or (< .cse28 65521) (not (< .cse28 268435455)))) (let ((.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296))) (or (< .cse29 65521) (not (< .cse29 268435455)))) (let ((.cse30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296))) (or (not (< .cse30 268435455)) (< .cse30 65521))) (let ((.cse31 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse31 65521) (not (< .cse31 268435455)))) (let ((.cse32 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296))) (or (not (< .cse32 268435455)) (< .cse32 65521))) (let ((.cse33 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (or (< .cse33 65521) (not (< .cse33 268435455))))) is different from false [2022-11-18 21:13:01,749 WARN L233 SmtUtils]: Spent 33.12s on a formula simplification. DAG size of input: 222 DAG size of output: 19 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:14:28,548 WARN L233 SmtUtils]: Spent 50.37s on a formula simplification. DAG size of input: 243 DAG size of output: 19 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:14:30,634 WARN L837 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296))) (or (not (< .cse0 268435455)) (< .cse0 65521))) (let ((.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296))) (or (< .cse1 65521) (not (< .cse1 268435455)))) (let ((.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296))) (or (< .cse2 65521) (not (< .cse2 268435455)))) (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (or (< .cse3 65521) (not (< .cse3 268435455)))) (let ((.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296))) (or (< .cse4 65521) (not (< .cse4 268435455)))) (let ((.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296))) (or (< .cse5 65521) (not (< .cse5 268435455)))) (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296))) (or (< .cse6 65521) (not (< .cse6 268435455)))) (let ((.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296))) (or (< .cse7 65521) (not (< .cse7 268435455)))) (let ((.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296))) (or (< .cse8 65521) (not (< .cse8 268435455)))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296))) (or (not (< .cse9 268435455)) (< .cse9 65521))) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296))) (or (< .cse10 65521) (not (< .cse10 268435455)))) (let ((.cse11 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296))) (or (< .cse11 65521) (not (< .cse11 268435455)))) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296))) (or (< .cse12 65521) (not (< .cse12 268435455)))) (let ((.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296))) (or (< .cse13 65521) (not (< .cse13 268435455)))) (let ((.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296))) (or (not (< .cse14 268435455)) (< .cse14 65521))) (let ((.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296))) (or (< .cse15 65521) (not (< .cse15 268435455)))) (let ((.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296))) (or (< .cse16 65521) (not (< .cse16 268435455)))) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< .cse17 65521) (not (< .cse17 268435455)))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 35) 4294967296))) (or (< .cse18 65521) (not (< .cse18 268435455)))) (let ((.cse19 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse19 65521) (not (< .cse19 268435455)))) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296))) (or (not (< .cse20 268435455)) (< .cse20 65521))) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296))) (or (< .cse21 65521) (not (< .cse21 268435455)))) (let ((.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse22 65521) (not (< .cse22 268435455)))) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 65521) (let ((.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296))) (or (< .cse23 65521) (not (< .cse23 268435455)))) (let ((.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296))) (or (not (< .cse24 268435455)) (< .cse24 65521))) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296))) (or (not (< .cse25 268435455)) (< .cse25 65521))) (let ((.cse26 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse26 65521) (not (< .cse26 268435455)))) (let ((.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296))) (or (< .cse27 65521) (not (< .cse27 268435455)))) (let ((.cse28 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296))) (or (< .cse28 65521) (not (< .cse28 268435455)))) (let ((.cse29 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse29 65521) (not (< .cse29 268435455)))) (let ((.cse30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296))) (or (not (< .cse30 268435455)) (< .cse30 65521))) (let ((.cse31 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (or (< .cse31 65521) (not (< .cse31 268435455))))) is different from false [2022-11-18 21:14:32,685 WARN L837 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296))) (or (not (< .cse0 268435455)) (< .cse0 65521))) (let ((.cse1 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296))) (or (< .cse1 65521) (not (< .cse1 268435455)))) (let ((.cse2 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296))) (or (< .cse2 65521) (not (< .cse2 268435455)))) (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 38) 4294967296))) (or (not (< .cse3 268435455)) (< .cse3 65521))) (let ((.cse4 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (or (< .cse4 65521) (not (< .cse4 268435455)))) (let ((.cse5 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296))) (or (< .cse5 65521) (not (< .cse5 268435455)))) (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296))) (or (< .cse6 65521) (not (< .cse6 268435455)))) (let ((.cse7 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296))) (or (< .cse7 65521) (not (< .cse7 268435455)))) (let ((.cse8 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296))) (or (< .cse8 65521) (not (< .cse8 268435455)))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296))) (or (< .cse9 65521) (not (< .cse9 268435455)))) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296))) (or (not (< .cse10 268435455)) (< .cse10 65521))) (let ((.cse11 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296))) (or (< .cse11 65521) (not (< .cse11 268435455)))) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296))) (or (< .cse12 65521) (not (< .cse12 268435455)))) (let ((.cse13 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296))) (or (< .cse13 65521) (not (< .cse13 268435455)))) (let ((.cse14 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296))) (or (< .cse14 65521) (not (< .cse14 268435455)))) (let ((.cse15 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296))) (or (not (< .cse15 268435455)) (< .cse15 65521))) (let ((.cse16 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296))) (or (< .cse16 65521) (not (< .cse16 268435455)))) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296))) (or (< .cse17 65521) (not (< .cse17 268435455)))) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or (< .cse18 65521) (not (< .cse18 268435455)))) (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 35) 4294967296))) (or (< .cse19 65521) (not (< .cse19 268435455)))) (let ((.cse20 (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse20 65521) (not (< .cse20 268435455)))) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296))) (or (not (< .cse21 268435455)) (< .cse21 65521))) (let ((.cse22 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296))) (or (< .cse22 65521) (not (< .cse22 268435455)))) (let ((.cse23 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (or (< .cse23 65521) (not (< .cse23 268435455)))) (let ((.cse24 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 36) 4294967296))) (or (< .cse24 65521) (not (< .cse24 268435455)))) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296))) (or (< .cse25 65521) (not (< .cse25 268435455)))) (let ((.cse26 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296))) (or (not (< .cse26 268435455)) (< .cse26 65521))) (let ((.cse27 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296))) (or (not (< .cse27 268435455)) (< .cse27 65521))) (let ((.cse28 (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse28 65521) (not (< .cse28 268435455)))) (let ((.cse29 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296))) (or (< .cse29 65521) (not (< .cse29 268435455)))) (let ((.cse30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296))) (or (< .cse30 65521) (not (< .cse30 268435455)))) (let ((.cse31 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 37) 4294967296))) (or (not (< .cse31 268435455)) (< .cse31 65521))) (let ((.cse32 (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (or (< .cse32 65521) (not (< .cse32 268435455)))) (let ((.cse33 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296))) (or (not (< .cse33 268435455)) (< .cse33 65521))) (let ((.cse34 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (or (< .cse34 65521) (not (< .cse34 268435455))))) is different from false [2022-11-18 21:15:43,055 WARN L233 SmtUtils]: Spent 29.11s on a formula simplification. DAG size of input: 208 DAG size of output: 19 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:17:03,952 WARN L233 SmtUtils]: Spent 43.82s on a formula simplification. DAG size of input: 229 DAG size of output: 19 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:18:12,976 WARN L233 SmtUtils]: Spent 21.77s on a formula simplification. DAG size of input: 217 DAG size of output: 10 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)