./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/Mono5_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/Mono5_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d27ce9425b362883f32c5ccf3973d31d4f8100e5e6b8fcc1a4527c07eb2b71c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:30:56,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:30:56,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:30:56,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:30:56,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:30:56,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:30:56,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:30:56,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:30:56,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:30:56,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:30:56,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:30:56,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:30:56,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:30:56,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:30:56,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:30:56,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:30:56,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:30:56,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:30:56,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:30:56,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:30:56,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:30:56,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:30:56,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:30:56,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:30:56,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:30:56,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:30:56,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:30:56,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:30:56,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:30:56,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:30:56,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:30:56,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:30:56,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:30:56,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:30:56,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:30:56,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:30:56,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:30:56,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:30:56,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:30:56,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:30:56,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:30:56,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:30:56,558 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:30:56,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:30:56,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:30:56,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:30:56,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:30:56,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:30:56,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:30:56,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:30:56,563 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:30:56,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:30:56,564 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:30:56,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:30:56,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:30:56,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:30:56,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:30:56,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:30:56,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:30:56,566 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:30:56,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:30:56,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:30:56,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:30:56,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:30:56,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:30:56,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:30:56,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:56,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:30:56,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:30:56,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:30:56,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:30:56,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:30:56,570 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:30:56,571 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:30:56,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:30:56,571 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_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d27ce9425b362883f32c5ccf3973d31d4f8100e5e6b8fcc1a4527c07eb2b71c [2022-11-20 11:30:56,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:30:56,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:30:56,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:30:56,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:30:56,925 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:30:56,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/loops-crafted-1/Mono5_1.c [2022-11-20 11:31:00,166 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:31:00,399 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:31:00,400 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/sv-benchmarks/c/loops-crafted-1/Mono5_1.c [2022-11-20 11:31:00,411 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/data/da0068be5/382af08e264d429380d2a6430f514b98/FLAGb320b5088 [2022-11-20 11:31:00,430 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/data/da0068be5/382af08e264d429380d2a6430f514b98 [2022-11-20 11:31:00,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:31:00,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:31:00,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:00,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:31:00,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:31:00,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e78af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00, skipping insertion in model container [2022-11-20 11:31:00,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:31:00,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:31:00,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/sv-benchmarks/c/loops-crafted-1/Mono5_1.c[311,324] [2022-11-20 11:31:00,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:00,670 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:31:00,683 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/sv-benchmarks/c/loops-crafted-1/Mono5_1.c[311,324] [2022-11-20 11:31:00,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:00,701 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:31:00,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00 WrapperNode [2022-11-20 11:31:00,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:00,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:00,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:31:00,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:31:00,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,740 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2022-11-20 11:31:00,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:00,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:31:00,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:31:00,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:31:00,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:31:00,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:31:00,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:31:00,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:31:00,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (1/1) ... [2022-11-20 11:31:00,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:00,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:00,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:31:00,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:31:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:31:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:31:00,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:31:00,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:31:00,938 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:31:00,941 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:31:01,111 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:31:01,118 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:31:01,118 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:31:01,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:01 BoogieIcfgContainer [2022-11-20 11:31:01,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:31:01,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:31:01,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:31:01,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:31:01,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:31:00" (1/3) ... [2022-11-20 11:31:01,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523afa30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:01, skipping insertion in model container [2022-11-20 11:31:01,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:00" (2/3) ... [2022-11-20 11:31:01,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523afa30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:01, skipping insertion in model container [2022-11-20 11:31:01,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:01" (3/3) ... [2022-11-20 11:31:01,140 INFO L112 eAbstractionObserver]: Analyzing ICFG Mono5_1.c [2022-11-20 11:31:01,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:31:01,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:31:01,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:31:01,265 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;@20e209e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:31:01,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:31:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:01,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:31:01,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:01,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:31:01,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:01,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:01,295 INFO L85 PathProgramCache]: Analyzing trace with hash 889968487, now seen corresponding path program 1 times [2022-11-20 11:31:01,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:01,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039800306] [2022-11-20 11:31:01,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:01,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:01,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:01,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:01,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039800306] [2022-11-20 11:31:01,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039800306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:01,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:01,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:01,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039950552] [2022-11-20 11:31:01,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:01,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:31:01,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:01,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:31:01,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:31:01,611 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-11-20 11:31:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:01,650 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-11-20 11:31:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:31:01,653 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 [2022-11-20 11:31:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:01,662 INFO L225 Difference]: With dead ends: 21 [2022-11-20 11:31:01,665 INFO L226 Difference]: Without dead ends: 9 [2022-11-20 11:31:01,669 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 [2022-11-20 11:31:01,673 INFO L413 NwaCegarLoop]: 14 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, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:01,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:31:01,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-20 11:31:01,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-20 11:31:01,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-11-20 11:31:01,713 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2022-11-20 11:31:01,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:01,714 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-20 11:31:01,715 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) [2022-11-20 11:31:01,715 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-11-20 11:31:01,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:31:01,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:01,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:31:01,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:31:01,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:01,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:01,719 INFO L85 PathProgramCache]: Analyzing trace with hash 889640786, now seen corresponding path program 1 times [2022-11-20 11:31:01,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:01,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069211644] [2022-11-20 11:31:01,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:01,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:01,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:01,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:01,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069211644] [2022-11-20 11:31:01,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069211644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:01,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:01,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:31:02,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619436713] [2022-11-20 11:31:02,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:02,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:31:02,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:02,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:31:02,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:31:02,003 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-11-20 11:31:02,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:02,041 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2022-11-20 11:31:02,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:31:02,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 [2022-11-20 11:31:02,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:02,042 INFO L225 Difference]: With dead ends: 16 [2022-11-20 11:31:02,042 INFO L226 Difference]: Without dead ends: 12 [2022-11-20 11:31:02,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:31:02,044 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:02,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:31:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-20 11:31:02,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-20 11:31:02,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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) [2022-11-20 11:31:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-11-20 11:31:02,050 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 6 [2022-11-20 11:31:02,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:02,051 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-20 11:31:02,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-11-20 11:31:02,052 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-20 11:31:02,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:31:02,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:02,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:02,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:31:02,053 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:02,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:02,054 INFO L85 PathProgramCache]: Analyzing trace with hash 584467323, now seen corresponding path program 1 times [2022-11-20 11:31:02,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:02,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589530148] [2022-11-20 11:31:02,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:02,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:02,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:02,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589530148] [2022-11-20 11:31:02,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589530148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:02,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:02,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:31:02,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289829266] [2022-11-20 11:31:02,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:02,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:02,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:02,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:02,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:02,305 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-11-20 11:31:02,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:02,328 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2022-11-20 11:31:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:02,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Word has length 9 [2022-11-20 11:31:02,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:02,329 INFO L225 Difference]: With dead ends: 22 [2022-11-20 11:31:02,330 INFO L226 Difference]: Without dead ends: 15 [2022-11-20 11:31:02,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:02,332 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:02,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 11 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:31:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-20 11:31:02,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-20 11:31:02,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-20 11:31:02,354 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9 [2022-11-20 11:31:02,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:02,354 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-20 11:31:02,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-11-20 11:31:02,355 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-20 11:31:02,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 11:31:02,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:02,356 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:02,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:31:02,357 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:02,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:02,358 INFO L85 PathProgramCache]: Analyzing trace with hash -2007312204, now seen corresponding path program 1 times [2022-11-20 11:31:02,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:02,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279651243] [2022-11-20 11:31:02,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:02,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:02,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:02,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279651243] [2022-11-20 11:31:02,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279651243] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:02,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007011849] [2022-11-20 11:31:02,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:02,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:02,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:02,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:02,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:31:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:31:02,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:31:02,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:02,971 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:31:02,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007011849] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:02,972 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:31:02,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2022-11-20 11:31:02,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165249403] [2022-11-20 11:31:02,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:02,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:31:02,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:02,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:31:02,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:02,976 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 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) [2022-11-20 11:31:03,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:03,161 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-11-20 11:31:03,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:31:03,162 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 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) Word has length 12 [2022-11-20 11:31:03,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:03,163 INFO L225 Difference]: With dead ends: 40 [2022-11-20 11:31:03,164 INFO L226 Difference]: Without dead ends: 27 [2022-11-20 11:31:03,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:31:03,168 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 21 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:03,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 47 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:31:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-20 11:31:03,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-11-20 11:31:03,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:03,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-20 11:31:03,184 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 12 [2022-11-20 11:31:03,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:03,185 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-20 11:31:03,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 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) [2022-11-20 11:31:03,185 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-20 11:31:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 11:31:03,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:03,186 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:03,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 11:31:03,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:03,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:03,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:03,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1502357326, now seen corresponding path program 2 times [2022-11-20 11:31:03,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:03,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342057642] [2022-11-20 11:31:03,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:03,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:31:03,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:03,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342057642] [2022-11-20 11:31:03,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342057642] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:03,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377669229] [2022-11-20 11:31:03,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:31:03,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:03,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:03,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:03,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:31:03,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:31:03,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:03,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 11:31:03,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 11:31:03,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 11:31:04,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377669229] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:04,083 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:31:04,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 17 [2022-11-20 11:31:04,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308935954] [2022-11-20 11:31:04,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:04,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 11:31:04,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:04,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 11:31:04,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:31:04,098 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:04,971 INFO L93 Difference]: Finished difference Result 76 states and 98 transitions. [2022-11-20 11:31:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:31:04,972 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 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 [2022-11-20 11:31:04,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:04,973 INFO L225 Difference]: With dead ends: 76 [2022-11-20 11:31:04,973 INFO L226 Difference]: Without dead ends: 48 [2022-11-20 11:31:04,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2022-11-20 11:31:04,975 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 82 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:04,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 133 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:31:04,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-20 11:31:04,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2022-11-20 11:31:04,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:04,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2022-11-20 11:31:04,986 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 24 [2022-11-20 11:31:04,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:04,987 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2022-11-20 11:31:04,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:04,987 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2022-11-20 11:31:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 11:31:04,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:04,989 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 10, 3, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:04,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:05,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:05,195 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:05,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:05,195 INFO L85 PathProgramCache]: Analyzing trace with hash 314984633, now seen corresponding path program 3 times [2022-11-20 11:31:05,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:05,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718659411] [2022-11-20 11:31:05,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:05,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 106 proven. 15 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 11:31:05,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:05,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718659411] [2022-11-20 11:31:05,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718659411] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:05,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195080697] [2022-11-20 11:31:05,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:31:05,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:05,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:05,544 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:05,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:31:05,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-20 11:31:05,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:05,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:31:05,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:05,832 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 106 proven. 15 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 11:31:05,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 106 proven. 15 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 11:31:06,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195080697] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:06,034 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:31:06,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2022-11-20 11:31:06,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500135074] [2022-11-20 11:31:06,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:06,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:31:06,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:06,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:31:06,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:31:06,042 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2022-11-20 11:31:06,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:06,782 INFO L93 Difference]: Finished difference Result 106 states and 132 transitions. [2022-11-20 11:31:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:31:06,782 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 45 [2022-11-20 11:31:06,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:06,783 INFO L225 Difference]: With dead ends: 106 [2022-11-20 11:31:06,783 INFO L226 Difference]: Without dead ends: 72 [2022-11-20 11:31:06,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=186, Invalid=276, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:31:06,785 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 31 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:06,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 33 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:31:06,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-20 11:31:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2022-11-20 11:31:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 61 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:06,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2022-11-20 11:31:06,802 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 45 [2022-11-20 11:31:06,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:06,802 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2022-11-20 11:31:06,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2022-11-20 11:31:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2022-11-20 11:31:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-20 11:31:06,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:06,804 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 10, 8, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:06,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:07,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:07,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:07,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:07,012 INFO L85 PathProgramCache]: Analyzing trace with hash -487009614, now seen corresponding path program 4 times [2022-11-20 11:31:07,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:07,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083967153] [2022-11-20 11:31:07,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:07,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:07,531 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 251 proven. 100 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 11:31:07,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:07,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083967153] [2022-11-20 11:31:07,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083967153] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:07,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442071199] [2022-11-20 11:31:07,532 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:31:07,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:07,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:07,534 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:07,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:31:07,614 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:31:07,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:07,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-20 11:31:07,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 377 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-20 11:31:07,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 377 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-20 11:31:08,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442071199] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:08,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:31:08,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 14] total 35 [2022-11-20 11:31:08,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999292306] [2022-11-20 11:31:08,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:08,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-20 11:31:08,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:08,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-20 11:31:08,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=993, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 11:31:08,524 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 35 states, 35 states have (on average 3.057142857142857) internal successors, (107), 35 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:26,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:26,644 INFO L93 Difference]: Finished difference Result 160 states and 206 transitions. [2022-11-20 11:31:26,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 11:31:26,645 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.057142857142857) internal successors, (107), 35 states have internal predecessors, (107), 0 states have call successors, (0), 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 60 [2022-11-20 11:31:26,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:26,646 INFO L225 Difference]: With dead ends: 160 [2022-11-20 11:31:26,646 INFO L226 Difference]: Without dead ends: 102 [2022-11-20 11:31:26,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=935, Invalid=3355, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 11:31:26,653 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 391 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:26,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 478 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 11:31:26,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-20 11:31:26,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2022-11-20 11:31:26,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.24) internal successors, (124), 100 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2022-11-20 11:31:26,695 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 60 [2022-11-20 11:31:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:26,695 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2022-11-20 11:31:26,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.057142857142857) internal successors, (107), 35 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2022-11-20 11:31:26,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 11:31:26,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:26,702 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 22, 9, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:26,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:26,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:26,908 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:26,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:26,909 INFO L85 PathProgramCache]: Analyzing trace with hash 157606297, now seen corresponding path program 5 times [2022-11-20 11:31:26,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:26,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966952838] [2022-11-20 11:31:26,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:26,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 628 proven. 126 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-11-20 11:31:27,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:27,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966952838] [2022-11-20 11:31:27,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966952838] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:27,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443211773] [2022-11-20 11:31:27,345 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 11:31:27,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:27,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:27,347 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:27,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:31:44,298 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-11-20 11:31:44,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:31:44,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-20 11:31:44,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 1300 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 11:31:45,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:31:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 0 proven. 1300 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 11:31:47,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443211773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:31:47,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:31:47,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 26, 26] total 60 [2022-11-20 11:31:47,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980845236] [2022-11-20 11:31:47,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:31:47,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-11-20 11:31:47,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:47,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-11-20 11:31:47,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=656, Invalid=2884, Unknown=0, NotChecked=0, Total=3540 [2022-11-20 11:31:47,209 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 60 states, 60 states have (on average 3.033333333333333) internal successors, (182), 60 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:52,221 WARN L233 SmtUtils]: Spent 39.78s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:32:54,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:34:03,414 WARN L233 SmtUtils]: Spent 44.83s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:34:05,533 WARN L837 $PredicateComparison]: unable to prove that (and (not (= 0 (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967278) 4294967296))) (not (= (mod (+ 4294967283 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 0)) (not (= (mod (+ 4294967275 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967293) 4294967296) 0)) (not (= (mod (+ 4294967292 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967279 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967289) 4294967296) 0)) (not (= (mod (+ 4294967288 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967282 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967284) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967295 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967286) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967285) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967281) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967294 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967291 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967287) 4294967296) 0)) (not (= (mod (+ 4294967290 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967276 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0))) is different from false [2022-11-20 11:34:59,521 WARN L233 SmtUtils]: Spent 27.22s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:35:01,753 WARN L837 $PredicateComparison]: unable to prove that (and (not (= 0 (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967278) 4294967296))) (not (= (mod (+ 4294967283 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967293) 4294967296) 0)) (not (= (mod (+ 4294967292 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967279 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967289) 4294967296) 0)) (not (= (mod (+ 4294967288 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967282 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967284) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967295 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967286) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967285) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967281) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967294 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967291 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967287) 4294967296) 0)) (not (= (mod (+ 4294967290 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967276 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0))) is different from false [2022-11-20 11:35:03,767 WARN L837 $PredicateComparison]: unable to prove that (and (not (= 0 (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967278) 4294967296))) (not (= (mod (+ 4294967283 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967293) 4294967296) 0)) (not (= (mod (+ 4294967292 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967279 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967289) 4294967296) 0)) (not (= (mod (+ 4294967288 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967282 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967284) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967295 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967286) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967285) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967281) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967294 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967291 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967287) 4294967296) 0)) (not (= (mod (+ 4294967290 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967276 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0))) is different from false [2022-11-20 11:35:53,140 WARN L233 SmtUtils]: Spent 25.39s on a formula simplification that was a NOOP. DAG size: 102 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:35:55,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:56,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:58,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:49,811 WARN L233 SmtUtils]: Spent 26.60s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:37:26,478 WARN L233 SmtUtils]: Spent 18.22s on a formula simplification that was a NOOP. DAG size: 97 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:37:59,531 WARN L233 SmtUtils]: Spent 16.58s on a formula simplification that was a NOOP. DAG size: 100 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:38:41,713 WARN L233 SmtUtils]: Spent 18.51s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:39:12,889 WARN L233 SmtUtils]: Spent 13.96s on a formula simplification that was a NOOP. DAG size: 95 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:39:42,421 WARN L233 SmtUtils]: Spent 14.74s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:40:08,767 WARN L233 SmtUtils]: Spent 15.12s on a formula simplification that was a NOOP. DAG size: 90 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:40:30,202 WARN L233 SmtUtils]: Spent 13.25s on a formula simplification that was a NOOP. DAG size: 82 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:40:56,950 WARN L233 SmtUtils]: Spent 11.24s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:41:20,529 WARN L233 SmtUtils]: Spent 11.08s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:41:22,565 WARN L837 $PredicateComparison]: unable to prove that (and (not (= (mod (+ 4294967283 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 0)) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967293) 4294967296) 0)) (not (= (mod (+ 4294967292 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967289) 4294967296) 0)) (not (= (mod (+ 4294967288 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967282 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967284) 4294967296) 0)) (not (= (mod (+ 4294967295 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967286) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967285) 4294967296) 0)) (not (= (mod (+ 4294967294 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967291 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967287) 4294967296) 0)) (not (= (mod (+ 4294967290 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0))) is different from false [2022-11-20 11:41:37,447 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:42:51,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:42:51,905 INFO L93 Difference]: Finished difference Result 297 states and 391 transitions. [2022-11-20 11:42:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-20 11:42:51,905 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 3.033333333333333) internal successors, (182), 60 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-20 11:42:51,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:42:51,908 INFO L225 Difference]: With dead ends: 297 [2022-11-20 11:42:51,908 INFO L226 Difference]: Without dead ends: 183 [2022-11-20 11:42:51,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1806 ImplicationChecksByTransitivity, 655.3s TimeCoverageRelationStatistics Valid=2885, Invalid=9548, Unknown=15, NotChecked=892, Total=13340 [2022-11-20 11:42:51,912 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1366 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 56 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:42:51,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 1860 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1931 Invalid, 3 Unknown, 8 Unchecked, 11.6s Time] [2022-11-20 11:42:51,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-20 11:42:51,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 178. [2022-11-20 11:42:51,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.2768361581920904) internal successors, (226), 177 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 226 transitions. [2022-11-20 11:42:51,946 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 226 transitions. Word has length 99 [2022-11-20 11:42:51,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:42:51,947 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 226 transitions. [2022-11-20 11:42:51,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.033333333333333) internal successors, (182), 60 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 226 transitions. [2022-11-20 11:42:51,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 11:42:51,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:42:51,949 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 24, 11, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:51,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:42:52,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 11:42:52,152 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:42:52,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:52,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1759556839, now seen corresponding path program 6 times [2022-11-20 11:42:52,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:52,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617750373] [2022-11-20 11:42:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:52,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 789 proven. 155 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2022-11-20 11:42:52,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:52,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617750373] [2022-11-20 11:42:52,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617750373] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:42:52,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054128132] [2022-11-20 11:42:52,754 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 11:42:52,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:42:52,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:42:52,756 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:42:52,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:42:52,825 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-20 11:42:52,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:42:52,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:42:52,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:42:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-11-20 11:42:53,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:42:53,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054128132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:53,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:42:53,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-11-20 11:42:53,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877693420] [2022-11-20 11:42:53,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:53,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:42:53,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:53,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:42:53,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:42:53,089 INFO L87 Difference]: Start difference. First operand 178 states and 226 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:53,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:42:53,231 INFO L93 Difference]: Finished difference Result 404 states and 497 transitions. [2022-11-20 11:42:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:42:53,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 111 [2022-11-20 11:42:53,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:42:53,238 INFO L225 Difference]: With dead ends: 404 [2022-11-20 11:42:53,238 INFO L226 Difference]: Without dead ends: 400 [2022-11-20 11:42:53,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:42:53,243 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:42:53,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:42:53,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-11-20 11:42:53,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 175. [2022-11-20 11:42:53,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.2701149425287357) internal successors, (221), 174 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 221 transitions. [2022-11-20 11:42:53,333 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 221 transitions. Word has length 111 [2022-11-20 11:42:53,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:42:53,334 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 221 transitions. [2022-11-20 11:42:53,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 221 transitions. [2022-11-20 11:42:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-20 11:42:53,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:42:53,337 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 26, 11, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:53,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:42:53,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:42:53,538 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:42:53,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:53,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1957023869, now seen corresponding path program 7 times [2022-11-20 11:42:53,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:53,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012150866] [2022-11-20 11:42:53,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:53,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 853 proven. 155 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2022-11-20 11:42:54,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:54,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012150866] [2022-11-20 11:42:54,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012150866] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:42:54,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126952237] [2022-11-20 11:42:54,156 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-20 11:42:54,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:42:54,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:42:54,158 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:42:54,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6396a887-eb01-443a-a910-74da5886786e/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:42:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:54,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-20 11:42:54,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:42:55,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 0 proven. 1877 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-11-20 11:42:55,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:42:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2035 backedges. 0 proven. 1877 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-11-20 11:42:57,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126952237] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:42:57,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:42:57,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 30, 30] total 69 [2022-11-20 11:42:57,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182192464] [2022-11-20 11:42:57,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:42:57,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-11-20 11:42:57,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:57,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-11-20 11:42:57,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=875, Invalid=3817, Unknown=0, NotChecked=0, Total=4692 [2022-11-20 11:42:57,562 INFO L87 Difference]: Start difference. First operand 175 states and 221 transitions. Second operand has 69 states, 69 states have (on average 3.072463768115942) internal successors, (212), 69 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:45:02,421 WARN L233 SmtUtils]: Spent 1.14m on a formula simplification that was a NOOP. DAG size: 137 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 11:45:04,679 WARN L837 $PredicateComparison]: unable to prove that (and (not (= 0 (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967278) 4294967296))) (not (= (mod (+ 4294967283 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967274 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967272 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967271) 4294967296) 0)) (not (= (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) 0)) (not (= (mod (+ 4294967273 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967275 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967293) 4294967296) 0)) (not (= (mod (+ 4294967292 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967279 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967289) 4294967296) 0)) (not (= (mod (+ 4294967288 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967282 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967284) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967280) 4294967296) 0)) (not (= (mod (+ 4294967295 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967286) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967285) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967281) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967277) 4294967296) 0)) (not (= (mod (+ 4294967294 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967291 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ |c_ULTIMATE.start_main_~z~0#1| 4294967287) 4294967296) 0)) (not (= (mod (+ 4294967290 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0)) (not (= (mod (+ 4294967276 |c_ULTIMATE.start_main_~z~0#1|) 4294967296) 0))) is different from false