./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ --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 c74f92ba3d978b3a2efb098ebc8eb373bc42abebaabf8c6efaf148fbe05036e0 --- 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-dbf71c6-m [2022-10-17 10:57:17,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:57:17,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:57:17,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:57:17,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:57:17,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:57:17,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:57:17,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:57:17,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:57:17,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:57:17,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:57:17,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:57:17,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:57:17,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:57:17,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:57:17,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:57:17,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:57:17,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:57:17,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:57:17,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:57:17,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:57:17,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:57:17,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:57:17,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:57:17,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:57:17,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:57:17,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:57:17,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:57:17,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:57:17,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:57:17,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:57:17,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:57:17,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:57:17,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:57:17,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:57:17,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:57:17,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:57:17,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:57:17,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:57:17,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:57:17,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:57:17,572 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:57:17,633 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:57:17,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:57:17,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:57:17,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:57:17,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:57:17,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:57:17,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:57:17,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:57:17,637 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:57:17,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:57:17,638 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:57:17,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:57:17,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:57:17,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:57:17,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:57:17,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:57:17,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:57:17,640 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:57:17,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:57:17,640 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:57:17,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:57:17,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:57:17,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:57:17,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:57:17,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:57:17,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:57:17,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:57:17,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:57:17,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:57:17,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:57:17,650 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:57:17,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:57:17,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:57:17,651 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_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74f92ba3d978b3a2efb098ebc8eb373bc42abebaabf8c6efaf148fbe05036e0 [2022-10-17 10:57:17,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:57:17,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:57:17,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:57:17,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:57:17,951 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:57:17,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-10-17 10:57:18,020 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/data/5aee6bebe/8851fd2816de4e4d8f6ea445283a6127/FLAG9e4f6cfd0 [2022-10-17 10:57:18,768 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:57:18,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-10-17 10:57:18,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/data/5aee6bebe/8851fd2816de4e4d8f6ea445283a6127/FLAG9e4f6cfd0 [2022-10-17 10:57:18,933 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/data/5aee6bebe/8851fd2816de4e4d8f6ea445283a6127 [2022-10-17 10:57:18,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:57:18,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:57:18,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:57:18,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:57:18,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:57:18,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:57:18" (1/1) ... [2022-10-17 10:57:18,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa29b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:18, skipping insertion in model container [2022-10-17 10:57:18,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:57:18" (1/1) ... [2022-10-17 10:57:18,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:57:19,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:57:19,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18857,18870] [2022-10-17 10:57:19,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25957,25970] [2022-10-17 10:57:19,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29482,29495] [2022-10-17 10:57:19,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32880,32893] [2022-10-17 10:57:19,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36938,36951] [2022-10-17 10:57:19,611 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40412,40425] [2022-10-17 10:57:19,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43977,43990] [2022-10-17 10:57:19,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47412,47425] [2022-10-17 10:57:19,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[51091,51104] [2022-10-17 10:57:19,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54693,54706] [2022-10-17 10:57:19,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58222,58235] [2022-10-17 10:57:19,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:57:19,776 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:57:19,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18857,18870] [2022-10-17 10:57:19,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25957,25970] [2022-10-17 10:57:19,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29482,29495] [2022-10-17 10:57:20,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32880,32893] [2022-10-17 10:57:20,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36938,36951] [2022-10-17 10:57:20,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40412,40425] [2022-10-17 10:57:20,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43977,43990] [2022-10-17 10:57:20,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47412,47425] [2022-10-17 10:57:20,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[51091,51104] [2022-10-17 10:57:20,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54693,54706] [2022-10-17 10:57:20,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58222,58235] [2022-10-17 10:57:20,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:57:20,153 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:57:20,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20 WrapperNode [2022-10-17 10:57:20,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:57:20,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:57:20,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:57:20,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:57:20,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,302 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2770 [2022-10-17 10:57:20,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:57:20,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:57:20,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:57:20,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:57:20,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,404 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:57:20,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:57:20,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:57:20,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:57:20,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (1/1) ... [2022-10-17 10:57:20,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:57:20,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:57:20,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:57:20,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afedacd-b796-4865-902b-404855b85c94/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:57:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:57:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:57:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:57:20,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:57:20,772 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:57:20,774 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:57:22,681 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:57:22,702 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:57:22,702 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:57:22,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:57:22 BoogieIcfgContainer [2022-10-17 10:57:22,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:57:22,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:57:22,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:57:22,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:57:22,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:57:18" (1/3) ... [2022-10-17 10:57:22,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5858b31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:57:22, skipping insertion in model container [2022-10-17 10:57:22,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:20" (2/3) ... [2022-10-17 10:57:22,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5858b31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:57:22, skipping insertion in model container [2022-10-17 10:57:22,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:57:22" (3/3) ... [2022-10-17 10:57:22,716 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-10-17 10:57:22,739 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:57:22,739 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-10-17 10:57:22,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:57:22,848 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;@6f54e516, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:57:22,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-10-17 10:57:22,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 558 states have (on average 1.7831541218637992) internal successors, (995), 569 states have internal predecessors, (995), 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) [2022-10-17 10:57:22,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-17 10:57:22,877 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:22,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:22,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:22,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:22,884 INFO L85 PathProgramCache]: Analyzing trace with hash 646480323, now seen corresponding path program 1 times [2022-10-17 10:57:22,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:22,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271401117] [2022-10-17 10:57:22,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:23,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:23,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271401117] [2022-10-17 10:57:23,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271401117] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:23,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:23,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:57:23,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006395684] [2022-10-17 10:57:23,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:23,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:57:23,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:23,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:57:23,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:57:23,599 INFO L87 Difference]: Start difference. First operand has 570 states, 558 states have (on average 1.7831541218637992) internal successors, (995), 569 states have internal predecessors, (995), 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 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-10-17 10:57:24,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:24,297 INFO L93 Difference]: Finished difference Result 785 states and 1334 transitions. [2022-10-17 10:57:24,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:57:24,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 [2022-10-17 10:57:24,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:24,324 INFO L225 Difference]: With dead ends: 785 [2022-10-17 10:57:24,325 INFO L226 Difference]: Without dead ends: 503 [2022-10-17 10:57:24,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:57:24,339 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 2416 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:24,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2416 Valid, 551 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:57:24,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-10-17 10:57:24,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2022-10-17 10:57:24,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 492 states have (on average 1.274390243902439) internal successors, (627), 502 states have internal predecessors, (627), 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) [2022-10-17 10:57:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 627 transitions. [2022-10-17 10:57:24,458 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 627 transitions. Word has length 60 [2022-10-17 10:57:24,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:24,460 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 627 transitions. [2022-10-17 10:57:24,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-10-17 10:57:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 627 transitions. [2022-10-17 10:57:24,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-17 10:57:24,472 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:24,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:24,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:57:24,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:24,476 INFO L85 PathProgramCache]: Analyzing trace with hash 221242932, now seen corresponding path program 1 times [2022-10-17 10:57:24,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:24,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740933271] [2022-10-17 10:57:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:24,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:24,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:24,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740933271] [2022-10-17 10:57:24,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740933271] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:24,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:24,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:57:24,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53869209] [2022-10-17 10:57:24,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:24,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:57:24,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:24,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:57:24,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:57:24,754 INFO L87 Difference]: Start difference. First operand 503 states and 627 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-10-17 10:57:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:25,071 INFO L93 Difference]: Finished difference Result 637 states and 796 transitions. [2022-10-17 10:57:25,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:57:25,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 [2022-10-17 10:57:25,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:25,078 INFO L225 Difference]: With dead ends: 637 [2022-10-17 10:57:25,078 INFO L226 Difference]: Without dead ends: 381 [2022-10-17 10:57:25,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:57:25,083 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1366 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:25,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 266 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:57:25,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-10-17 10:57:25,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2022-10-17 10:57:25,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 370 states have (on average 1.2864864864864864) internal successors, (476), 380 states have internal predecessors, (476), 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) [2022-10-17 10:57:25,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 476 transitions. [2022-10-17 10:57:25,135 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 476 transitions. Word has length 60 [2022-10-17 10:57:25,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:25,136 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 476 transitions. [2022-10-17 10:57:25,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-10-17 10:57:25,136 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 476 transitions. [2022-10-17 10:57:25,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-17 10:57:25,137 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:25,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:25,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:57:25,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:25,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:25,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2147344789, now seen corresponding path program 1 times [2022-10-17 10:57:25,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:25,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568435922] [2022-10-17 10:57:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:25,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:25,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:25,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568435922] [2022-10-17 10:57:25,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568435922] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:25,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:25,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:57:25,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272918438] [2022-10-17 10:57:25,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:25,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:57:25,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:25,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:57:25,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:57:25,366 INFO L87 Difference]: Start difference. First operand 381 states and 476 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-10-17 10:57:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:25,738 INFO L93 Difference]: Finished difference Result 713 states and 908 transitions. [2022-10-17 10:57:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:57:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 [2022-10-17 10:57:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:25,742 INFO L225 Difference]: With dead ends: 713 [2022-10-17 10:57:25,743 INFO L226 Difference]: Without dead ends: 509 [2022-10-17 10:57:25,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:57:25,747 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1661 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:25,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 371 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:57:25,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-10-17 10:57:25,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 450. [2022-10-17 10:57:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 439 states have (on average 1.3416856492027336) internal successors, (589), 449 states have internal predecessors, (589), 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) [2022-10-17 10:57:25,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 589 transitions. [2022-10-17 10:57:25,796 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 589 transitions. Word has length 60 [2022-10-17 10:57:25,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:25,798 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 589 transitions. [2022-10-17 10:57:25,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-10-17 10:57:25,799 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 589 transitions. [2022-10-17 10:57:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-17 10:57:25,801 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:25,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:25,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:57:25,802 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:25,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:25,803 INFO L85 PathProgramCache]: Analyzing trace with hash 604643521, now seen corresponding path program 1 times [2022-10-17 10:57:25,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:25,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295960522] [2022-10-17 10:57:25,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:25,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:26,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:26,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:26,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295960522] [2022-10-17 10:57:26,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295960522] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:26,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:26,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:57:26,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035120494] [2022-10-17 10:57:26,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:26,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:57:26,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:26,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:57:26,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:57:26,041 INFO L87 Difference]: Start difference. First operand 450 states and 589 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-10-17 10:57:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:26,248 INFO L93 Difference]: Finished difference Result 606 states and 794 transitions. [2022-10-17 10:57:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:57:26,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2022-10-17 10:57:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:26,252 INFO L225 Difference]: With dead ends: 606 [2022-10-17 10:57:26,252 INFO L226 Difference]: Without dead ends: 357 [2022-10-17 10:57:26,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:57:26,255 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 902 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:26,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 209 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:57:26,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-10-17 10:57:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-10-17 10:57:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.346820809248555) internal successors, (466), 356 states have internal predecessors, (466), 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) [2022-10-17 10:57:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 466 transitions. [2022-10-17 10:57:26,299 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 466 transitions. Word has length 62 [2022-10-17 10:57:26,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:26,300 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 466 transitions. [2022-10-17 10:57:26,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-10-17 10:57:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 466 transitions. [2022-10-17 10:57:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 10:57:26,302 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:26,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:26,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:57:26,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:26,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:26,304 INFO L85 PathProgramCache]: Analyzing trace with hash -699288056, now seen corresponding path program 1 times [2022-10-17 10:57:26,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:26,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491927634] [2022-10-17 10:57:26,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:26,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:26,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:26,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491927634] [2022-10-17 10:57:26,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491927634] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:26,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:26,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:57:26,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443503772] [2022-10-17 10:57:26,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:26,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:57:26,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:26,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:57:26,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:57:26,714 INFO L87 Difference]: Start difference. First operand 357 states and 466 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-10-17 10:57:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:27,494 INFO L93 Difference]: Finished difference Result 810 states and 1097 transitions. [2022-10-17 10:57:27,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:57:27,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-10-17 10:57:27,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:27,500 INFO L225 Difference]: With dead ends: 810 [2022-10-17 10:57:27,502 INFO L226 Difference]: Without dead ends: 666 [2022-10-17 10:57:27,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:57:27,504 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 2135 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:27,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 923 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:57:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-10-17 10:57:27,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 357. [2022-10-17 10:57:27,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3439306358381502) internal successors, (465), 356 states have internal predecessors, (465), 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) [2022-10-17 10:57:27,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 465 transitions. [2022-10-17 10:57:27,579 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 465 transitions. Word has length 64 [2022-10-17 10:57:27,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:27,581 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 465 transitions. [2022-10-17 10:57:27,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-10-17 10:57:27,582 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 465 transitions. [2022-10-17 10:57:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 10:57:27,583 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:27,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:27,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:57:27,584 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:27,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1796013608, now seen corresponding path program 1 times [2022-10-17 10:57:27,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:27,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104397709] [2022-10-17 10:57:27,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:27,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:28,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:28,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:28,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104397709] [2022-10-17 10:57:28,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104397709] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:28,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:28,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:57:28,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775892743] [2022-10-17 10:57:28,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:28,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:57:28,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:57:28,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:57:28,037 INFO L87 Difference]: Start difference. First operand 357 states and 465 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-10-17 10:57:28,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:28,926 INFO L93 Difference]: Finished difference Result 915 states and 1258 transitions. [2022-10-17 10:57:28,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:57:28,927 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-10-17 10:57:28,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:28,932 INFO L225 Difference]: With dead ends: 915 [2022-10-17 10:57:28,932 INFO L226 Difference]: Without dead ends: 795 [2022-10-17 10:57:28,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-10-17 10:57:28,934 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1925 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:28,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1925 Valid, 1070 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:57:28,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-10-17 10:57:29,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 357. [2022-10-17 10:57:29,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3410404624277457) internal successors, (464), 356 states have internal predecessors, (464), 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) [2022-10-17 10:57:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 464 transitions. [2022-10-17 10:57:29,004 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 464 transitions. Word has length 64 [2022-10-17 10:57:29,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:29,004 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 464 transitions. [2022-10-17 10:57:29,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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) [2022-10-17 10:57:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 464 transitions. [2022-10-17 10:57:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 10:57:29,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:29,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:29,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:57:29,006 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1577721816, now seen corresponding path program 1 times [2022-10-17 10:57:29,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:29,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582703584] [2022-10-17 10:57:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:29,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:29,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:29,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:29,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582703584] [2022-10-17 10:57:29,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582703584] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:29,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:29,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:57:29,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809184256] [2022-10-17 10:57:29,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:29,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:57:29,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:29,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:57:29,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:57:29,413 INFO L87 Difference]: Start difference. First operand 357 states and 464 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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) [2022-10-17 10:57:29,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:29,967 INFO L93 Difference]: Finished difference Result 724 states and 946 transitions. [2022-10-17 10:57:29,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:57:29,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2022-10-17 10:57:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:29,972 INFO L225 Difference]: With dead ends: 724 [2022-10-17 10:57:29,972 INFO L226 Difference]: Without dead ends: 531 [2022-10-17 10:57:29,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:57:29,974 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1719 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:29,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1719 Valid, 673 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:57:29,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-10-17 10:57:30,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 357. [2022-10-17 10:57:30,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3381502890173411) internal successors, (463), 356 states have internal predecessors, (463), 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) [2022-10-17 10:57:30,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 463 transitions. [2022-10-17 10:57:30,036 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 463 transitions. Word has length 64 [2022-10-17 10:57:30,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:30,037 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 463 transitions. [2022-10-17 10:57:30,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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) [2022-10-17 10:57:30,038 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 463 transitions. [2022-10-17 10:57:30,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-17 10:57:30,039 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:30,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:30,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:57:30,040 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:30,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:30,041 INFO L85 PathProgramCache]: Analyzing trace with hash -295025225, now seen corresponding path program 1 times [2022-10-17 10:57:30,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:30,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108093530] [2022-10-17 10:57:30,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:30,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:30,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:30,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108093530] [2022-10-17 10:57:30,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108093530] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:30,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:30,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:57:30,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214193169] [2022-10-17 10:57:30,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:30,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:57:30,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:30,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:57:30,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:57:30,467 INFO L87 Difference]: Start difference. First operand 357 states and 463 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 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) [2022-10-17 10:57:31,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:31,372 INFO L93 Difference]: Finished difference Result 883 states and 1207 transitions. [2022-10-17 10:57:31,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:57:31,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2022-10-17 10:57:31,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:31,378 INFO L225 Difference]: With dead ends: 883 [2022-10-17 10:57:31,378 INFO L226 Difference]: Without dead ends: 774 [2022-10-17 10:57:31,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-10-17 10:57:31,380 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1908 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:31,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 985 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:57:31,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-10-17 10:57:31,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 357. [2022-10-17 10:57:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3352601156069364) internal successors, (462), 356 states have internal predecessors, (462), 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) [2022-10-17 10:57:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 462 transitions. [2022-10-17 10:57:31,470 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 462 transitions. Word has length 65 [2022-10-17 10:57:31,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:31,470 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 462 transitions. [2022-10-17 10:57:31,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 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) [2022-10-17 10:57:31,471 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 462 transitions. [2022-10-17 10:57:31,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-17 10:57:31,472 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:31,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:31,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:57:31,472 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:31,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:31,473 INFO L85 PathProgramCache]: Analyzing trace with hash -168692467, now seen corresponding path program 1 times [2022-10-17 10:57:31,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:31,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364298790] [2022-10-17 10:57:31,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:31,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:31,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:31,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:31,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364298790] [2022-10-17 10:57:31,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364298790] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:31,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:31,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:57:31,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410830915] [2022-10-17 10:57:31,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:31,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:57:31,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:31,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:57:31,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:57:31,800 INFO L87 Difference]: Start difference. First operand 357 states and 462 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:32,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:32,690 INFO L93 Difference]: Finished difference Result 814 states and 1101 transitions. [2022-10-17 10:57:32,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:57:32,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2022-10-17 10:57:32,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:32,695 INFO L225 Difference]: With dead ends: 814 [2022-10-17 10:57:32,695 INFO L226 Difference]: Without dead ends: 795 [2022-10-17 10:57:32,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-10-17 10:57:32,698 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 1857 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1857 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:32,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1857 Valid, 1103 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:57:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-10-17 10:57:32,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 357. [2022-10-17 10:57:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.329479768786127) internal successors, (460), 356 states have internal predecessors, (460), 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) [2022-10-17 10:57:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 460 transitions. [2022-10-17 10:57:32,780 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 460 transitions. Word has length 66 [2022-10-17 10:57:32,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:32,780 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 460 transitions. [2022-10-17 10:57:32,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:32,781 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 460 transitions. [2022-10-17 10:57:32,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-17 10:57:32,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:32,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:32,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:57:32,783 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:32,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:32,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1424145869, now seen corresponding path program 1 times [2022-10-17 10:57:32,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:32,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022039849] [2022-10-17 10:57:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:32,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:33,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:33,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022039849] [2022-10-17 10:57:33,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022039849] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:33,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:33,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:57:33,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648619432] [2022-10-17 10:57:33,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:33,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:57:33,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:33,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:57:33,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:57:33,095 INFO L87 Difference]: Start difference. First operand 357 states and 460 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:33,947 INFO L93 Difference]: Finished difference Result 780 states and 1048 transitions. [2022-10-17 10:57:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:57:33,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2022-10-17 10:57:33,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:33,952 INFO L225 Difference]: With dead ends: 780 [2022-10-17 10:57:33,952 INFO L226 Difference]: Without dead ends: 774 [2022-10-17 10:57:33,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:57:33,955 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 977 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:33,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 1061 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:57:33,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-10-17 10:57:34,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 357. [2022-10-17 10:57:34,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.323699421965318) internal successors, (458), 356 states have internal predecessors, (458), 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) [2022-10-17 10:57:34,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 458 transitions. [2022-10-17 10:57:34,036 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 458 transitions. Word has length 66 [2022-10-17 10:57:34,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:34,037 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 458 transitions. [2022-10-17 10:57:34,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:34,037 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 458 transitions. [2022-10-17 10:57:34,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-17 10:57:34,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:34,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:34,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:57:34,039 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:34,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:34,040 INFO L85 PathProgramCache]: Analyzing trace with hash -155488627, now seen corresponding path program 1 times [2022-10-17 10:57:34,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:34,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369680123] [2022-10-17 10:57:34,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:34,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:34,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:34,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:34,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369680123] [2022-10-17 10:57:34,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369680123] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:34,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:34,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:57:34,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801927887] [2022-10-17 10:57:34,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:34,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:57:34,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:34,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:57:34,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:57:34,328 INFO L87 Difference]: Start difference. First operand 357 states and 458 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:34,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:34,963 INFO L93 Difference]: Finished difference Result 701 states and 948 transitions. [2022-10-17 10:57:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:57:34,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2022-10-17 10:57:34,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:34,966 INFO L225 Difference]: With dead ends: 701 [2022-10-17 10:57:34,967 INFO L226 Difference]: Without dead ends: 524 [2022-10-17 10:57:34,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:57:34,968 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1346 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:34,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 909 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:57:34,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-10-17 10:57:35,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 357. [2022-10-17 10:57:35,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3179190751445087) internal successors, (456), 356 states have internal predecessors, (456), 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) [2022-10-17 10:57:35,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 456 transitions. [2022-10-17 10:57:35,049 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 456 transitions. Word has length 66 [2022-10-17 10:57:35,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:35,049 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 456 transitions. [2022-10-17 10:57:35,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:35,049 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 456 transitions. [2022-10-17 10:57:35,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-17 10:57:35,050 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:35,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:35,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:57:35,051 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:35,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:35,052 INFO L85 PathProgramCache]: Analyzing trace with hash -131812051, now seen corresponding path program 1 times [2022-10-17 10:57:35,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:35,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581858517] [2022-10-17 10:57:35,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:35,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:35,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:35,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581858517] [2022-10-17 10:57:35,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581858517] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:35,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:35,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:57:35,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2799336] [2022-10-17 10:57:35,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:35,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:57:35,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:35,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:57:35,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:57:35,306 INFO L87 Difference]: Start difference. First operand 357 states and 456 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:36,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:36,141 INFO L93 Difference]: Finished difference Result 886 states and 1203 transitions. [2022-10-17 10:57:36,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:57:36,142 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2022-10-17 10:57:36,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:36,146 INFO L225 Difference]: With dead ends: 886 [2022-10-17 10:57:36,147 INFO L226 Difference]: Without dead ends: 774 [2022-10-17 10:57:36,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:57:36,148 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 1373 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:36,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1072 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:57:36,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-10-17 10:57:36,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 357. [2022-10-17 10:57:36,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3150289017341041) internal successors, (455), 356 states have internal predecessors, (455), 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) [2022-10-17 10:57:36,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 455 transitions. [2022-10-17 10:57:36,242 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 455 transitions. Word has length 66 [2022-10-17 10:57:36,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:36,243 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 455 transitions. [2022-10-17 10:57:36,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:36,243 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 455 transitions. [2022-10-17 10:57:36,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-17 10:57:36,244 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:36,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:36,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-17 10:57:36,245 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:36,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:36,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2058619373, now seen corresponding path program 1 times [2022-10-17 10:57:36,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:36,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003556824] [2022-10-17 10:57:36,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:36,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:36,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:36,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003556824] [2022-10-17 10:57:36,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003556824] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:36,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:36,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:57:36,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070536375] [2022-10-17 10:57:36,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:36,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:57:36,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:57:36,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:57:36,550 INFO L87 Difference]: Start difference. First operand 357 states and 455 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:37,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:37,479 INFO L93 Difference]: Finished difference Result 920 states and 1252 transitions. [2022-10-17 10:57:37,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:57:37,480 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2022-10-17 10:57:37,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:37,484 INFO L225 Difference]: With dead ends: 920 [2022-10-17 10:57:37,484 INFO L226 Difference]: Without dead ends: 795 [2022-10-17 10:57:37,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:57:37,487 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1664 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:37,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 1297 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:57:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-10-17 10:57:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 357. [2022-10-17 10:57:37,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3121387283236994) internal successors, (454), 356 states have internal predecessors, (454), 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) [2022-10-17 10:57:37,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 454 transitions. [2022-10-17 10:57:37,580 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 454 transitions. Word has length 66 [2022-10-17 10:57:37,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:37,580 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 454 transitions. [2022-10-17 10:57:37,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:37,581 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 454 transitions. [2022-10-17 10:57:37,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-17 10:57:37,582 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:37,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:37,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-17 10:57:37,583 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:37,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:37,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1833305997, now seen corresponding path program 1 times [2022-10-17 10:57:37,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:37,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504276350] [2022-10-17 10:57:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:37,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:37,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:37,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504276350] [2022-10-17 10:57:37,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504276350] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:37,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:37,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:57:37,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786670834] [2022-10-17 10:57:37,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:37,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:57:37,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:37,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:57:37,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:57:37,843 INFO L87 Difference]: Start difference. First operand 357 states and 454 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:38,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:38,738 INFO L93 Difference]: Finished difference Result 780 states and 1042 transitions. [2022-10-17 10:57:38,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:57:38,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2022-10-17 10:57:38,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:38,743 INFO L225 Difference]: With dead ends: 780 [2022-10-17 10:57:38,743 INFO L226 Difference]: Without dead ends: 774 [2022-10-17 10:57:38,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:57:38,745 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1873 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:38,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 1201 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:57:38,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-10-17 10:57:38,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 357. [2022-10-17 10:57:38,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 346 states have (on average 1.3092485549132948) internal successors, (453), 356 states have internal predecessors, (453), 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) [2022-10-17 10:57:38,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 453 transitions. [2022-10-17 10:57:38,845 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 453 transitions. Word has length 66 [2022-10-17 10:57:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:38,845 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 453 transitions. [2022-10-17 10:57:38,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 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) [2022-10-17 10:57:38,845 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 453 transitions. [2022-10-17 10:57:38,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-17 10:57:38,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:38,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:38,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-17 10:57:38,847 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:38,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:38,848 INFO L85 PathProgramCache]: Analyzing trace with hash 817551922, now seen corresponding path program 1 times [2022-10-17 10:57:38,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:38,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354601067] [2022-10-17 10:57:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:38,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:39,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:39,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354601067] [2022-10-17 10:57:39,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354601067] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:39,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:39,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:57:39,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556557819] [2022-10-17 10:57:39,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:39,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:57:39,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:39,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:57:39,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:57:39,561 INFO L87 Difference]: Start difference. First operand 357 states and 453 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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) [2022-10-17 10:57:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:40,592 INFO L93 Difference]: Finished difference Result 701 states and 925 transitions. [2022-10-17 10:57:40,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:57:40,594 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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 67 [2022-10-17 10:57:40,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:40,597 INFO L225 Difference]: With dead ends: 701 [2022-10-17 10:57:40,598 INFO L226 Difference]: Without dead ends: 578 [2022-10-17 10:57:40,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:57:40,599 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 1240 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:40,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 2428 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:57:40,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-10-17 10:57:40,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 336. [2022-10-17 10:57:40,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 326 states have (on average 1.3067484662576687) internal successors, (426), 335 states have internal predecessors, (426), 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) [2022-10-17 10:57:40,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 426 transitions. [2022-10-17 10:57:40,708 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 426 transitions. Word has length 67 [2022-10-17 10:57:40,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:40,709 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 426 transitions. [2022-10-17 10:57:40,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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) [2022-10-17 10:57:40,709 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 426 transitions. [2022-10-17 10:57:40,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-17 10:57:40,710 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:40,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:40,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-17 10:57:40,711 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:40,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:40,712 INFO L85 PathProgramCache]: Analyzing trace with hash 167509874, now seen corresponding path program 1 times [2022-10-17 10:57:40,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:40,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381350810] [2022-10-17 10:57:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:40,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:41,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:41,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:41,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381350810] [2022-10-17 10:57:41,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381350810] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:41,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:41,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-17 10:57:41,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389335705] [2022-10-17 10:57:41,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:41,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 10:57:41,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:41,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:57:41,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:57:41,237 INFO L87 Difference]: Start difference. First operand 336 states and 426 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-10-17 10:57:42,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:57:42,244 INFO L93 Difference]: Finished difference Result 853 states and 1146 transitions. [2022-10-17 10:57:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:57:42,248 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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 67 [2022-10-17 10:57:42,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:57:42,251 INFO L225 Difference]: With dead ends: 853 [2022-10-17 10:57:42,251 INFO L226 Difference]: Without dead ends: 677 [2022-10-17 10:57:42,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-10-17 10:57:42,252 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 1574 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:57:42,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 1306 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:57:42,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-10-17 10:57:42,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 266. [2022-10-17 10:57:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 260 states have (on average 1.3153846153846154) internal successors, (342), 265 states have internal predecessors, (342), 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) [2022-10-17 10:57:42,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 342 transitions. [2022-10-17 10:57:42,347 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 342 transitions. Word has length 67 [2022-10-17 10:57:42,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:57:42,347 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 342 transitions. [2022-10-17 10:57:42,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 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) [2022-10-17 10:57:42,348 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 342 transitions. [2022-10-17 10:57:42,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-17 10:57:42,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:57:42,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:57:42,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-17 10:57:42,349 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-10-17 10:57:42,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:42,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1968382194, now seen corresponding path program 1 times [2022-10-17 10:57:42,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:42,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322395592] [2022-10-17 10:57:42,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:42,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:43,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:43,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:43,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322395592] [2022-10-17 10:57:43,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322395592] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:43,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:43,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-10-17 10:57:43,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170616773] [2022-10-17 10:57:43,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:43,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-17 10:57:43,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:57:43,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-17 10:57:43,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:57:43,804 INFO L87 Difference]: Start difference. First operand 266 states and 342 transitions. Second operand has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 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)