./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8 --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 820426658db97058309ccbf6c9080e1e23ba9878004c38e814dfcfedaf40875a --- 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-e04fb08 [2022-11-16 12:15:06,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:15:06,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:15:06,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:15:06,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:15:06,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:15:06,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:15:06,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:15:06,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:15:06,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:15:06,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:15:06,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:15:06,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:15:06,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:15:06,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:15:06,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:15:06,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:15:06,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:15:06,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:15:06,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:15:06,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:15:06,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:15:06,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:15:06,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:15:06,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:15:06,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:15:06,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:15:06,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:15:06,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:15:06,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:15:06,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:15:06,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:15:06,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:15:06,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:15:06,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:15:06,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:15:06,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:15:06,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:15:06,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:15:06,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:15:06,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:15:06,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:15:06,667 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:15:06,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:15:06,676 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:15:06,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:15:06,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:15:06,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:15:06,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:15:06,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:15:06,680 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:15:06,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:15:06,681 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:15:06,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:15:06,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:15:06,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:15:06,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:15:06,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:15:06,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:15:06,683 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:15:06,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:15:06,683 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:15:06,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:15:06,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:15:06,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:15:06,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:15:06,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:15:06,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:15:06,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:15:06,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:15:06,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:15:06,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:15:06,685 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:15:06,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:15:06,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:15:06,686 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_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 820426658db97058309ccbf6c9080e1e23ba9878004c38e814dfcfedaf40875a [2022-11-16 12:15:06,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:15:07,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:15:07,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:15:07,010 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:15:07,011 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:15:07,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 12:15:07,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/data/f75ff1613/f5df41bafddb499ba738364681b79568/FLAG75c041209 [2022-11-16 12:15:07,809 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:15:07,810 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 12:15:07,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/data/f75ff1613/f5df41bafddb499ba738364681b79568/FLAG75c041209 [2022-11-16 12:15:07,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/data/f75ff1613/f5df41bafddb499ba738364681b79568 [2022-11-16 12:15:07,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:15:07,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:15:07,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:15:07,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:15:07,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:15:07,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:15:07" (1/1) ... [2022-11-16 12:15:07,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0457d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:07, skipping insertion in model container [2022-11-16 12:15:07,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:15:07" (1/1) ... [2022-11-16 12:15:07,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:15:08,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:15:08,507 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2022-11-16 12:15:08,547 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2022-11-16 12:15:08,561 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2022-11-16 12:15:08,569 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2022-11-16 12:15:08,591 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2022-11-16 12:15:08,598 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2022-11-16 12:15:08,613 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2022-11-16 12:15:09,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:15:09,151 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:15:09,232 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2022-11-16 12:15:09,254 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2022-11-16 12:15:09,263 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2022-11-16 12:15:09,268 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2022-11-16 12:15:09,280 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2022-11-16 12:15:09,284 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2022-11-16 12:15:09,293 WARN L229 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_0897e7f9-58ce-44a0-be80-68443ba246cc/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2022-11-16 12:15:09,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:15:09,630 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:15:09,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09 WrapperNode [2022-11-16 12:15:09,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:15:09,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:15:09,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:15:09,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:15:09,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:09,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:09,833 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6525 [2022-11-16 12:15:09,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:15:09,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:15:09,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:15:09,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:15:09,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:09,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:09,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:09,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:09,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:09,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:10,013 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:10,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:10,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:15:10,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:15:10,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:15:10,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:15:10,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (1/1) ... [2022-11-16 12:15:10,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:15:10,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:15:10,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:15:10,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0897e7f9-58ce-44a0-be80-68443ba246cc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:15:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:15:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:15:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:15:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:15:10,538 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:15:10,541 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:15:13,735 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:15:13,754 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:15:13,754 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:15:13,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:13 BoogieIcfgContainer [2022-11-16 12:15:13,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:15:13,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:15:13,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:15:13,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:15:13,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:15:07" (1/3) ... [2022-11-16 12:15:13,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fa79fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:15:13, skipping insertion in model container [2022-11-16 12:15:13,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:09" (2/3) ... [2022-11-16 12:15:13,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fa79fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:15:13, skipping insertion in model container [2022-11-16 12:15:13,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:13" (3/3) ... [2022-11-16 12:15:13,768 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 12:15:13,788 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:15:13,788 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-16 12:15:13,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:15:13,877 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;@193fffa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:15:13,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-16 12:15:13,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 1102 states, 1094 states have (on average 1.8875685557586837) internal successors, (2065), 1101 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:13,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-16 12:15:13,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:13,910 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] [2022-11-16 12:15:13,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:13,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1027637325, now seen corresponding path program 1 times [2022-11-16 12:15:13,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:13,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111340793] [2022-11-16 12:15:13,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:14,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:14,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111340793] [2022-11-16 12:15:14,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111340793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:14,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:14,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:15:14,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949594500] [2022-11-16 12:15:14,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:14,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:15:14,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:14,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:15:14,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:15:14,696 INFO L87 Difference]: Start difference. First operand has 1102 states, 1094 states have (on average 1.8875685557586837) internal successors, (2065), 1101 states have internal predecessors, (2065), 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 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:15,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:15,868 INFO L93 Difference]: Finished difference Result 1790 states and 3275 transitions. [2022-11-16 12:15:15,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:15:15,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2022-11-16 12:15:15,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:15,890 INFO L225 Difference]: With dead ends: 1790 [2022-11-16 12:15:15,911 INFO L226 Difference]: Without dead ends: 987 [2022-11-16 12:15:15,917 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 [2022-11-16 12:15:15,920 INFO L413 NwaCegarLoop]: 1062 mSDtfsCounter, 5044 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5044 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:15,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5044 Valid, 1250 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:15:15,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2022-11-16 12:15:16,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 979. [2022-11-16 12:15:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 972 states have (on average 1.3477366255144032) internal successors, (1310), 978 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:16,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1310 transitions. [2022-11-16 12:15:16,052 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1310 transitions. Word has length 63 [2022-11-16 12:15:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:16,052 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1310 transitions. [2022-11-16 12:15:16,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:16,053 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1310 transitions. [2022-11-16 12:15:16,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 12:15:16,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:16,056 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] [2022-11-16 12:15:16,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:15:16,057 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:16,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:16,058 INFO L85 PathProgramCache]: Analyzing trace with hash 517550277, now seen corresponding path program 1 times [2022-11-16 12:15:16,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:16,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511723551] [2022-11-16 12:15:16,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:16,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:16,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:16,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:16,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511723551] [2022-11-16 12:15:16,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511723551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:16,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:16,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:15:16,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022983751] [2022-11-16 12:15:16,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:16,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:15:16,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:16,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:15:16,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:16,174 INFO L87 Difference]: Start difference. First operand 979 states and 1310 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-11-16 12:15:16,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:16,289 INFO L93 Difference]: Finished difference Result 1722 states and 2352 transitions. [2022-11-16 12:15:16,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:15:16,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 [2022-11-16 12:15:16,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:16,296 INFO L225 Difference]: With dead ends: 1722 [2022-11-16 12:15:16,296 INFO L226 Difference]: Without dead ends: 1402 [2022-11-16 12:15:16,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:16,299 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 896 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:16,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 2136 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:15:16,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-11-16 12:15:16,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1393. [2022-11-16 12:15:16,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1386 states have (on average 1.3398268398268398) internal successors, (1857), 1392 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:16,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1857 transitions. [2022-11-16 12:15:16,423 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1857 transitions. Word has length 64 [2022-11-16 12:15:16,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:16,426 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 1857 transitions. [2022-11-16 12:15:16,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-11-16 12:15:16,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1857 transitions. [2022-11-16 12:15:16,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 12:15:16,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:16,439 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] [2022-11-16 12:15:16,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:15:16,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:16,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1546123801, now seen corresponding path program 1 times [2022-11-16 12:15:16,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:16,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406847594] [2022-11-16 12:15:16,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:16,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:16,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:16,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:16,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406847594] [2022-11-16 12:15:16,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406847594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:16,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:16,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:15:16,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269841003] [2022-11-16 12:15:16,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:16,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:15:16,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:16,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:15:16,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:16,604 INFO L87 Difference]: Start difference. First operand 1393 states and 1857 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-11-16 12:15:16,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:16,802 INFO L93 Difference]: Finished difference Result 2185 states and 3029 transitions. [2022-11-16 12:15:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:15:16,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 [2022-11-16 12:15:16,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:16,810 INFO L225 Difference]: With dead ends: 2185 [2022-11-16 12:15:16,810 INFO L226 Difference]: Without dead ends: 1800 [2022-11-16 12:15:16,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:16,812 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 532 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:16,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1864 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:15:16,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2022-11-16 12:15:16,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1792. [2022-11-16 12:15:16,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1785 states have (on average 1.3647058823529412) internal successors, (2436), 1791 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:16,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2436 transitions. [2022-11-16 12:15:16,919 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2436 transitions. Word has length 64 [2022-11-16 12:15:16,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:16,920 INFO L495 AbstractCegarLoop]: Abstraction has 1792 states and 2436 transitions. [2022-11-16 12:15:16,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-11-16 12:15:16,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2436 transitions. [2022-11-16 12:15:16,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 12:15:16,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:16,925 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] [2022-11-16 12:15:16,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:15:16,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:16,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:16,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1930220714, now seen corresponding path program 1 times [2022-11-16 12:15:16,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:16,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660130180] [2022-11-16 12:15:16,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:16,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:17,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:17,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660130180] [2022-11-16 12:15:17,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660130180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:17,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:17,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:15:17,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268133990] [2022-11-16 12:15:17,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:17,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:15:17,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:17,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:15:17,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:17,047 INFO L87 Difference]: Start difference. First operand 1792 states and 2436 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-11-16 12:15:17,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:17,278 INFO L93 Difference]: Finished difference Result 3258 states and 4588 transitions. [2022-11-16 12:15:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:15:17,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 [2022-11-16 12:15:17,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:17,290 INFO L225 Difference]: With dead ends: 3258 [2022-11-16 12:15:17,290 INFO L226 Difference]: Without dead ends: 2458 [2022-11-16 12:15:17,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:17,299 INFO L413 NwaCegarLoop]: 1081 mSDtfsCounter, 553 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:17,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 1797 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:15:17,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2022-11-16 12:15:17,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2450. [2022-11-16 12:15:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2443 states have (on average 1.3835448219402373) internal successors, (3380), 2449 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:17,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3380 transitions. [2022-11-16 12:15:17,484 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3380 transitions. Word has length 64 [2022-11-16 12:15:17,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:17,486 INFO L495 AbstractCegarLoop]: Abstraction has 2450 states and 3380 transitions. [2022-11-16 12:15:17,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-11-16 12:15:17,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3380 transitions. [2022-11-16 12:15:17,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 12:15:17,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:17,491 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] [2022-11-16 12:15:17,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:15:17,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:17,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:17,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1847708861, now seen corresponding path program 1 times [2022-11-16 12:15:17,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:17,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409282053] [2022-11-16 12:15:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:17,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:17,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:17,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409282053] [2022-11-16 12:15:17,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409282053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:17,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:17,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:15:17,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146211521] [2022-11-16 12:15:17,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:17,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:15:17,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:17,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:15:17,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:15:17,691 INFO L87 Difference]: Start difference. First operand 2450 states and 3380 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2022-11-16 12:15:18,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:18,663 INFO L93 Difference]: Finished difference Result 4663 states and 6528 transitions. [2022-11-16 12:15:18,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:15:18,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 [2022-11-16 12:15:18,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:18,674 INFO L225 Difference]: With dead ends: 4663 [2022-11-16 12:15:18,675 INFO L226 Difference]: Without dead ends: 2817 [2022-11-16 12:15:18,677 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 [2022-11-16 12:15:18,678 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 3048 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3048 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:18,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3048 Valid, 692 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:15:18,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2022-11-16 12:15:18,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2803. [2022-11-16 12:15:18,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2796 states have (on average 1.3776824034334765) internal successors, (3852), 2802 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:18,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3852 transitions. [2022-11-16 12:15:18,930 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3852 transitions. Word has length 64 [2022-11-16 12:15:18,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:18,931 INFO L495 AbstractCegarLoop]: Abstraction has 2803 states and 3852 transitions. [2022-11-16 12:15:18,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2022-11-16 12:15:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3852 transitions. [2022-11-16 12:15:18,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 12:15:18,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:18,935 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] [2022-11-16 12:15:18,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:15:18,936 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:18,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1685345629, now seen corresponding path program 1 times [2022-11-16 12:15:18,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:18,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725675824] [2022-11-16 12:15:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:18,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:19,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:19,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725675824] [2022-11-16 12:15:19,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725675824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:19,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:19,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:15:19,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012624237] [2022-11-16 12:15:19,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:19,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:15:19,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:19,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:15:19,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:15:19,064 INFO L87 Difference]: Start difference. First operand 2803 states and 3852 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2022-11-16 12:15:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:19,916 INFO L93 Difference]: Finished difference Result 6625 states and 9341 transitions. [2022-11-16 12:15:19,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:15:19,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 [2022-11-16 12:15:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:19,930 INFO L225 Difference]: With dead ends: 6625 [2022-11-16 12:15:19,930 INFO L226 Difference]: Without dead ends: 4111 [2022-11-16 12:15:19,933 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 [2022-11-16 12:15:19,933 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 2711 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:19,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 644 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:15:19,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2022-11-16 12:15:20,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 4103. [2022-11-16 12:15:20,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4103 states, 4096 states have (on average 1.41162109375) internal successors, (5782), 4102 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4103 states to 4103 states and 5782 transitions. [2022-11-16 12:15:20,304 INFO L78 Accepts]: Start accepts. Automaton has 4103 states and 5782 transitions. Word has length 64 [2022-11-16 12:15:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:20,304 INFO L495 AbstractCegarLoop]: Abstraction has 4103 states and 5782 transitions. [2022-11-16 12:15:20,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2022-11-16 12:15:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4103 states and 5782 transitions. [2022-11-16 12:15:20,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 12:15:20,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:20,309 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] [2022-11-16 12:15:20,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:15:20,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:20,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:20,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1051430303, now seen corresponding path program 1 times [2022-11-16 12:15:20,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:20,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468622712] [2022-11-16 12:15:20,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:20,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:20,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:20,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468622712] [2022-11-16 12:15:20,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468622712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:20,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:20,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:15:20,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912866531] [2022-11-16 12:15:20,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:20,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:15:20,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:20,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:15:20,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:20,388 INFO L87 Difference]: Start difference. First operand 4103 states and 5782 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-11-16 12:15:20,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:20,911 INFO L93 Difference]: Finished difference Result 8762 states and 12471 transitions. [2022-11-16 12:15:20,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:15:20,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2022-11-16 12:15:20,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:20,930 INFO L225 Difference]: With dead ends: 8762 [2022-11-16 12:15:20,930 INFO L226 Difference]: Without dead ends: 5676 [2022-11-16 12:15:20,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:20,936 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 583 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:20,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1523 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:15:20,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-11-16 12:15:21,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5650. [2022-11-16 12:15:21,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 5643 states have (on average 1.3891547049441786) internal successors, (7839), 5649 states have internal predecessors, (7839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:21,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 7839 transitions. [2022-11-16 12:15:21,577 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 7839 transitions. Word has length 65 [2022-11-16 12:15:21,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:21,577 INFO L495 AbstractCegarLoop]: Abstraction has 5650 states and 7839 transitions. [2022-11-16 12:15:21,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-11-16 12:15:21,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 7839 transitions. [2022-11-16 12:15:21,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-16 12:15:21,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:21,584 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] [2022-11-16 12:15:21,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:15:21,584 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:21,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:21,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1899148000, now seen corresponding path program 1 times [2022-11-16 12:15:21,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:21,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830753300] [2022-11-16 12:15:21,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:21,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:21,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:21,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830753300] [2022-11-16 12:15:21,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830753300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:21,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:21,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:15:21,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165811083] [2022-11-16 12:15:21,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:21,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:15:21,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:21,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:15:21,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:15:21,735 INFO L87 Difference]: Start difference. First operand 5650 states and 7839 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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) [2022-11-16 12:15:22,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:22,993 INFO L93 Difference]: Finished difference Result 12666 states and 17736 transitions. [2022-11-16 12:15:22,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:15:22,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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 [2022-11-16 12:15:22,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:23,029 INFO L225 Difference]: With dead ends: 12666 [2022-11-16 12:15:23,030 INFO L226 Difference]: Without dead ends: 7452 [2022-11-16 12:15:23,036 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 [2022-11-16 12:15:23,037 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 2375 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:23,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 577 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:15:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7452 states. [2022-11-16 12:15:23,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7452 to 7417. [2022-11-16 12:15:23,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7417 states, 7410 states have (on average 1.3913630229419702) internal successors, (10310), 7416 states have internal predecessors, (10310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7417 states to 7417 states and 10310 transitions. [2022-11-16 12:15:23,694 INFO L78 Accepts]: Start accepts. Automaton has 7417 states and 10310 transitions. Word has length 66 [2022-11-16 12:15:23,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:23,695 INFO L495 AbstractCegarLoop]: Abstraction has 7417 states and 10310 transitions. [2022-11-16 12:15:23,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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) [2022-11-16 12:15:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 7417 states and 10310 transitions. [2022-11-16 12:15:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 12:15:23,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:23,702 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] [2022-11-16 12:15:23,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:15:23,703 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:23,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:23,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1449474395, now seen corresponding path program 1 times [2022-11-16 12:15:23,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:23,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679444584] [2022-11-16 12:15:23,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:23,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:24,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:24,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679444584] [2022-11-16 12:15:24,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679444584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:24,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:24,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:24,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234674421] [2022-11-16 12:15:24,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:24,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:15:24,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:24,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:15:24,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:15:24,029 INFO L87 Difference]: Start difference. First operand 7417 states and 10310 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-11-16 12:15:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:27,749 INFO L93 Difference]: Finished difference Result 25547 states and 36211 transitions. [2022-11-16 12:15:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:15:27,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-11-16 12:15:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:27,807 INFO L225 Difference]: With dead ends: 25547 [2022-11-16 12:15:27,807 INFO L226 Difference]: Without dead ends: 22002 [2022-11-16 12:15:27,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:15:27,819 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 4463 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:27,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 1064 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:15:27,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22002 states. [2022-11-16 12:15:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22002 to 7445. [2022-11-16 12:15:28,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 7438 states have (on average 1.3909653132562516) internal successors, (10346), 7444 states have internal predecessors, (10346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10346 transitions. [2022-11-16 12:15:28,980 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10346 transitions. Word has length 67 [2022-11-16 12:15:28,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:28,980 INFO L495 AbstractCegarLoop]: Abstraction has 7445 states and 10346 transitions. [2022-11-16 12:15:28,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-11-16 12:15:28,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10346 transitions. [2022-11-16 12:15:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 12:15:28,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:28,989 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] [2022-11-16 12:15:28,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:15:28,990 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:28,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:28,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1861181409, now seen corresponding path program 1 times [2022-11-16 12:15:28,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:28,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587881587] [2022-11-16 12:15:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:28,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:29,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:29,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:29,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587881587] [2022-11-16 12:15:29,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587881587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:29,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:29,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:29,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109284954] [2022-11-16 12:15:29,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:29,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:15:29,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:29,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:15:29,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:15:29,160 INFO L87 Difference]: Start difference. First operand 7445 states and 10346 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-11-16 12:15:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:33,946 INFO L93 Difference]: Finished difference Result 28139 states and 40023 transitions. [2022-11-16 12:15:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:15:33,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-11-16 12:15:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:34,000 INFO L225 Difference]: With dead ends: 28139 [2022-11-16 12:15:34,000 INFO L226 Difference]: Without dead ends: 25042 [2022-11-16 12:15:34,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:15:34,010 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 3354 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3354 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:34,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3354 Valid, 1236 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:15:34,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25042 states. [2022-11-16 12:15:35,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25042 to 7516. [2022-11-16 12:15:35,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7509 states have (on average 1.390997469703023) internal successors, (10445), 7515 states have internal predecessors, (10445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 10445 transitions. [2022-11-16 12:15:35,120 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 10445 transitions. Word has length 67 [2022-11-16 12:15:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:35,121 INFO L495 AbstractCegarLoop]: Abstraction has 7516 states and 10445 transitions. [2022-11-16 12:15:35,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-11-16 12:15:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 10445 transitions. [2022-11-16 12:15:35,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 12:15:35,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:35,129 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] [2022-11-16 12:15:35,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:15:35,129 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:35,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:35,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2008504829, now seen corresponding path program 1 times [2022-11-16 12:15:35,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:35,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984933050] [2022-11-16 12:15:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:35,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:35,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:35,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:35,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984933050] [2022-11-16 12:15:35,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984933050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:35,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:35,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:35,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868070245] [2022-11-16 12:15:35,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:35,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:15:35,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:35,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:15:35,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:15:35,294 INFO L87 Difference]: Start difference. First operand 7516 states and 10445 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-11-16 12:15:41,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:41,765 INFO L93 Difference]: Finished difference Result 36677 states and 52253 transitions. [2022-11-16 12:15:41,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:15:41,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-11-16 12:15:41,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:41,830 INFO L225 Difference]: With dead ends: 36677 [2022-11-16 12:15:41,831 INFO L226 Difference]: Without dead ends: 33134 [2022-11-16 12:15:41,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:15:41,841 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 5046 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5046 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:41,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5046 Valid, 1130 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:15:41,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33134 states. [2022-11-16 12:15:43,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33134 to 7584. [2022-11-16 12:15:43,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7584 states, 7577 states have (on average 1.3901280190048833) internal successors, (10533), 7583 states have internal predecessors, (10533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:43,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 10533 transitions. [2022-11-16 12:15:43,155 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 10533 transitions. Word has length 67 [2022-11-16 12:15:43,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:43,155 INFO L495 AbstractCegarLoop]: Abstraction has 7584 states and 10533 transitions. [2022-11-16 12:15:43,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-11-16 12:15:43,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 10533 transitions. [2022-11-16 12:15:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 12:15:43,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:43,162 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] [2022-11-16 12:15:43,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:15:43,163 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:43,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:43,163 INFO L85 PathProgramCache]: Analyzing trace with hash 296799215, now seen corresponding path program 1 times [2022-11-16 12:15:43,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:43,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76073321] [2022-11-16 12:15:43,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:43,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:43,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:43,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76073321] [2022-11-16 12:15:43,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76073321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:43,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:43,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:43,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292392933] [2022-11-16 12:15:43,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:43,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:15:43,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:43,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:15:43,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:15:43,325 INFO L87 Difference]: Start difference. First operand 7584 states and 10533 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-11-16 12:15:50,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:50,108 INFO L93 Difference]: Finished difference Result 32608 states and 46382 transitions. [2022-11-16 12:15:50,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:15:50,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-11-16 12:15:50,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:50,158 INFO L225 Difference]: With dead ends: 32608 [2022-11-16 12:15:50,158 INFO L226 Difference]: Without dead ends: 29247 [2022-11-16 12:15:50,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:15:50,168 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 4613 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4613 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:50,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4613 Valid, 1112 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:15:50,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29247 states. [2022-11-16 12:15:51,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29247 to 7713. [2022-11-16 12:15:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7713 states, 7706 states have (on average 1.3890474954580847) internal successors, (10704), 7712 states have internal predecessors, (10704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7713 states to 7713 states and 10704 transitions. [2022-11-16 12:15:51,725 INFO L78 Accepts]: Start accepts. Automaton has 7713 states and 10704 transitions. Word has length 67 [2022-11-16 12:15:51,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:51,725 INFO L495 AbstractCegarLoop]: Abstraction has 7713 states and 10704 transitions. [2022-11-16 12:15:51,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-11-16 12:15:51,726 INFO L276 IsEmpty]: Start isEmpty. Operand 7713 states and 10704 transitions. [2022-11-16 12:15:51,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 12:15:51,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:51,732 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] [2022-11-16 12:15:51,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:15:51,733 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:51,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:51,733 INFO L85 PathProgramCache]: Analyzing trace with hash -766843701, now seen corresponding path program 1 times [2022-11-16 12:15:51,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:51,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457602077] [2022-11-16 12:15:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:51,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:52,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:52,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457602077] [2022-11-16 12:15:52,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457602077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:52,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:52,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:15:52,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137337613] [2022-11-16 12:15:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:52,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:15:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:52,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:15:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:15:52,080 INFO L87 Difference]: Start difference. First operand 7713 states and 10704 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 12:15:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:57,675 INFO L93 Difference]: Finished difference Result 24010 states and 34216 transitions. [2022-11-16 12:15:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:15:57,676 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) Word has length 68 [2022-11-16 12:15:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:57,699 INFO L225 Difference]: With dead ends: 24010 [2022-11-16 12:15:57,699 INFO L226 Difference]: Without dead ends: 19371 [2022-11-16 12:15:57,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:15:57,711 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 2857 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2857 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:57,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2857 Valid, 2111 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:15:57,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19371 states. [2022-11-16 12:15:59,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19371 to 7704. [2022-11-16 12:15:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7704 states, 7697 states have (on average 1.3883331167987527) internal successors, (10686), 7703 states have internal predecessors, (10686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7704 states to 7704 states and 10686 transitions. [2022-11-16 12:15:59,297 INFO L78 Accepts]: Start accepts. Automaton has 7704 states and 10686 transitions. Word has length 68 [2022-11-16 12:15:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:59,297 INFO L495 AbstractCegarLoop]: Abstraction has 7704 states and 10686 transitions. [2022-11-16 12:15:59,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 12:15:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 7704 states and 10686 transitions. [2022-11-16 12:15:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 12:15:59,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:59,304 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] [2022-11-16 12:15:59,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:15:59,304 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:15:59,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:59,305 INFO L85 PathProgramCache]: Analyzing trace with hash -646757943, now seen corresponding path program 1 times [2022-11-16 12:15:59,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:59,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363241093] [2022-11-16 12:15:59,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:59,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:59,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:59,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363241093] [2022-11-16 12:15:59,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363241093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:59,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:59,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:15:59,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635521261] [2022-11-16 12:15:59,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:59,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:15:59,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:59,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:15:59,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:15:59,693 INFO L87 Difference]: Start difference. First operand 7704 states and 10686 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 12:16:06,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:16:06,963 INFO L93 Difference]: Finished difference Result 24156 states and 34433 transitions. [2022-11-16 12:16:06,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:16:06,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) Word has length 68 [2022-11-16 12:16:06,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:16:06,986 INFO L225 Difference]: With dead ends: 24156 [2022-11-16 12:16:06,986 INFO L226 Difference]: Without dead ends: 19487 [2022-11-16 12:16:06,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:16:06,994 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 3891 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3891 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:16:06,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3891 Valid, 2006 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:16:07,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19487 states. [2022-11-16 12:16:09,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19487 to 7680. [2022-11-16 12:16:09,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7680 states, 7673 states have (on average 1.387592858073765) internal successors, (10647), 7679 states have internal predecessors, (10647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:09,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7680 states to 7680 states and 10647 transitions. [2022-11-16 12:16:09,210 INFO L78 Accepts]: Start accepts. Automaton has 7680 states and 10647 transitions. Word has length 68 [2022-11-16 12:16:09,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:16:09,211 INFO L495 AbstractCegarLoop]: Abstraction has 7680 states and 10647 transitions. [2022-11-16 12:16:09,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 12:16:09,211 INFO L276 IsEmpty]: Start isEmpty. Operand 7680 states and 10647 transitions. [2022-11-16 12:16:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 12:16:09,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:16:09,217 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] [2022-11-16 12:16:09,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:16:09,218 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:16:09,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:09,219 INFO L85 PathProgramCache]: Analyzing trace with hash 850267752, now seen corresponding path program 1 times [2022-11-16 12:16:09,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:09,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886915159] [2022-11-16 12:16:09,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:09,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:16:09,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:16:09,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886915159] [2022-11-16 12:16:09,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886915159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:16:09,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:16:09,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:16:09,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213802355] [2022-11-16 12:16:09,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:16:09,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:16:09,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:16:09,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:16:09,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:16:09,386 INFO L87 Difference]: Start difference. First operand 7680 states and 10647 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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) [2022-11-16 12:16:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:16:18,525 INFO L93 Difference]: Finished difference Result 28357 states and 40299 transitions. [2022-11-16 12:16:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:16:18,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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) Word has length 68 [2022-11-16 12:16:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:16:18,555 INFO L225 Difference]: With dead ends: 28357 [2022-11-16 12:16:18,555 INFO L226 Difference]: Without dead ends: 25260 [2022-11-16 12:16:18,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:16:18,561 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 3338 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3338 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:16:18,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3338 Valid, 1237 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:16:18,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25260 states. [2022-11-16 12:16:20,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25260 to 7749. [2022-11-16 12:16:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7749 states, 7742 states have (on average 1.3877551020408163) internal successors, (10744), 7748 states have internal predecessors, (10744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:20,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7749 states to 7749 states and 10744 transitions. [2022-11-16 12:16:20,663 INFO L78 Accepts]: Start accepts. Automaton has 7749 states and 10744 transitions. Word has length 68 [2022-11-16 12:16:20,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:16:20,664 INFO L495 AbstractCegarLoop]: Abstraction has 7749 states and 10744 transitions. [2022-11-16 12:16:20,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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) [2022-11-16 12:16:20,664 INFO L276 IsEmpty]: Start isEmpty. Operand 7749 states and 10744 transitions. [2022-11-16 12:16:20,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 12:16:20,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:16:20,671 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] [2022-11-16 12:16:20,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:16:20,671 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:16:20,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:20,672 INFO L85 PathProgramCache]: Analyzing trace with hash -16939312, now seen corresponding path program 1 times [2022-11-16 12:16:20,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:20,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615512206] [2022-11-16 12:16:20,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:20,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:16:21,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:16:21,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615512206] [2022-11-16 12:16:21,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615512206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:16:21,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:16:21,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:16:21,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615519458] [2022-11-16 12:16:21,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:16:21,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:16:21,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:16:21,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:16:21,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:16:21,035 INFO L87 Difference]: Start difference. First operand 7749 states and 10744 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 12:16:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:16:31,042 INFO L93 Difference]: Finished difference Result 30527 states and 43611 transitions. [2022-11-16 12:16:31,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:16:31,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) Word has length 68 [2022-11-16 12:16:31,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:16:31,084 INFO L225 Difference]: With dead ends: 30527 [2022-11-16 12:16:31,084 INFO L226 Difference]: Without dead ends: 25634 [2022-11-16 12:16:31,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:16:31,092 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 3618 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:16:31,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3618 Valid, 2246 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:16:31,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25634 states. [2022-11-16 12:16:33,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25634 to 7614. [2022-11-16 12:16:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7614 states, 7607 states have (on average 1.387537794136979) internal successors, (10555), 7613 states have internal predecessors, (10555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:33,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7614 states to 7614 states and 10555 transitions. [2022-11-16 12:16:33,202 INFO L78 Accepts]: Start accepts. Automaton has 7614 states and 10555 transitions. Word has length 68 [2022-11-16 12:16:33,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:16:33,202 INFO L495 AbstractCegarLoop]: Abstraction has 7614 states and 10555 transitions. [2022-11-16 12:16:33,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 12:16:33,202 INFO L276 IsEmpty]: Start isEmpty. Operand 7614 states and 10555 transitions. [2022-11-16 12:16:33,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 12:16:33,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:16:33,207 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] [2022-11-16 12:16:33,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:16:33,207 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:16:33,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:33,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1623797592, now seen corresponding path program 1 times [2022-11-16 12:16:33,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:33,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111883611] [2022-11-16 12:16:33,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:33,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:16:33,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:16:33,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111883611] [2022-11-16 12:16:33,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111883611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:16:33,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:16:33,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:16:33,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904886165] [2022-11-16 12:16:33,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:16:33,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:16:33,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:16:33,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:16:33,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:16:33,588 INFO L87 Difference]: Start difference. First operand 7614 states and 10555 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2022-11-16 12:16:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:16:39,629 INFO L93 Difference]: Finished difference Result 20857 states and 29579 transitions. [2022-11-16 12:16:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:16:39,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) Word has length 68 [2022-11-16 12:16:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:16:39,646 INFO L225 Difference]: With dead ends: 20857 [2022-11-16 12:16:39,646 INFO L226 Difference]: Without dead ends: 15464 [2022-11-16 12:16:39,652 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 [2022-11-16 12:16:39,653 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 3373 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3373 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:16:39,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3373 Valid, 1851 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:16:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15464 states. [2022-11-16 12:16:41,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15464 to 7287. [2022-11-16 12:16:41,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7287 states, 7280 states have (on average 1.3862637362637362) internal successors, (10092), 7286 states have internal predecessors, (10092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:41,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7287 states to 7287 states and 10092 transitions. [2022-11-16 12:16:41,571 INFO L78 Accepts]: Start accepts. Automaton has 7287 states and 10092 transitions. Word has length 68 [2022-11-16 12:16:41,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:16:41,572 INFO L495 AbstractCegarLoop]: Abstraction has 7287 states and 10092 transitions. [2022-11-16 12:16:41,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2022-11-16 12:16:41,572 INFO L276 IsEmpty]: Start isEmpty. Operand 7287 states and 10092 transitions. [2022-11-16 12:16:41,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:16:41,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:16:41,575 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, 1] [2022-11-16 12:16:41,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:16:41,576 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:16:41,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:41,576 INFO L85 PathProgramCache]: Analyzing trace with hash 601134174, now seen corresponding path program 1 times [2022-11-16 12:16:41,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:41,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984602720] [2022-11-16 12:16:41,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:41,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:16:42,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:16:42,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984602720] [2022-11-16 12:16:42,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984602720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:16:42,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:16:42,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:16:42,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615153368] [2022-11-16 12:16:42,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:16:42,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:16:42,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:16:42,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:16:42,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:16:42,298 INFO L87 Difference]: Start difference. First operand 7287 states and 10092 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:16:54,417 INFO L93 Difference]: Finished difference Result 36644 states and 52526 transitions. [2022-11-16 12:16:54,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:16:54,419 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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 69 [2022-11-16 12:16:54,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:16:54,457 INFO L225 Difference]: With dead ends: 36644 [2022-11-16 12:16:54,457 INFO L226 Difference]: Without dead ends: 31716 [2022-11-16 12:16:54,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:16:54,465 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 4726 mSDsluCounter, 3968 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4726 SdHoareTripleChecker+Valid, 4931 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:16:54,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4726 Valid, 4931 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:16:54,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31716 states. [2022-11-16 12:16:57,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31716 to 6954. [2022-11-16 12:16:57,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6954 states, 6949 states have (on average 1.3889768311987336) internal successors, (9652), 6953 states have internal predecessors, (9652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:57,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6954 states to 6954 states and 9652 transitions. [2022-11-16 12:16:57,453 INFO L78 Accepts]: Start accepts. Automaton has 6954 states and 9652 transitions. Word has length 69 [2022-11-16 12:16:57,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:16:57,453 INFO L495 AbstractCegarLoop]: Abstraction has 6954 states and 9652 transitions. [2022-11-16 12:16:57,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6954 states and 9652 transitions. [2022-11-16 12:16:57,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:16:57,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:16:57,457 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, 1] [2022-11-16 12:16:57,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:16:57,457 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:16:57,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:57,457 INFO L85 PathProgramCache]: Analyzing trace with hash -10442599, now seen corresponding path program 1 times [2022-11-16 12:16:57,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:57,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740438601] [2022-11-16 12:16:57,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:57,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:58,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:16:58,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:16:58,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740438601] [2022-11-16 12:16:58,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740438601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:16:58,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:16:58,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:16:58,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942073874] [2022-11-16 12:16:58,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:16:58,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:16:58,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:16:58,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:16:58,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:16:58,105 INFO L87 Difference]: Start difference. First operand 6954 states and 9652 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:13,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:17:13,823 INFO L93 Difference]: Finished difference Result 35404 states and 50973 transitions. [2022-11-16 12:17:13,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:17:13,823 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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 69 [2022-11-16 12:17:13,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:17:13,861 INFO L225 Difference]: With dead ends: 35404 [2022-11-16 12:17:13,862 INFO L226 Difference]: Without dead ends: 30700 [2022-11-16 12:17:13,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:17:13,872 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 3667 mSDsluCounter, 4384 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3667 SdHoareTripleChecker+Valid, 5200 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:17:13,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3667 Valid, 5200 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:17:13,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30700 states. [2022-11-16 12:17:16,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30700 to 6869. [2022-11-16 12:17:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6869 states, 6865 states have (on average 1.3873270211216315) internal successors, (9524), 6868 states have internal predecessors, (9524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6869 states to 6869 states and 9524 transitions. [2022-11-16 12:17:16,559 INFO L78 Accepts]: Start accepts. Automaton has 6869 states and 9524 transitions. Word has length 69 [2022-11-16 12:17:16,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:17:16,559 INFO L495 AbstractCegarLoop]: Abstraction has 6869 states and 9524 transitions. [2022-11-16 12:17:16,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:16,559 INFO L276 IsEmpty]: Start isEmpty. Operand 6869 states and 9524 transitions. [2022-11-16 12:17:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:17:16,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:17:16,565 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, 1] [2022-11-16 12:17:16,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:17:16,565 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:17:16,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:16,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2099777066, now seen corresponding path program 1 times [2022-11-16 12:17:16,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:16,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071508300] [2022-11-16 12:17:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:16,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:17:17,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:17,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071508300] [2022-11-16 12:17:17,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071508300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:17,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:17,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:17:17,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500898857] [2022-11-16 12:17:17,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:17,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:17:17,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:17,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:17:17,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:17:17,280 INFO L87 Difference]: Start difference. First operand 6869 states and 9524 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:32,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:17:32,831 INFO L93 Difference]: Finished difference Result 35047 states and 50463 transitions. [2022-11-16 12:17:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:17:32,832 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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 69 [2022-11-16 12:17:32,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:17:32,868 INFO L225 Difference]: With dead ends: 35047 [2022-11-16 12:17:32,868 INFO L226 Difference]: Without dead ends: 30418 [2022-11-16 12:17:32,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:17:32,875 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 3876 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 4979 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:17:32,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3876 Valid, 4979 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:17:32,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30418 states. [2022-11-16 12:17:36,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30418 to 6875. [2022-11-16 12:17:36,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6875 states, 6871 states have (on average 1.387279871925484) internal successors, (9532), 6874 states have internal predecessors, (9532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:36,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6875 states to 6875 states and 9532 transitions. [2022-11-16 12:17:36,091 INFO L78 Accepts]: Start accepts. Automaton has 6875 states and 9532 transitions. Word has length 69 [2022-11-16 12:17:36,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:17:36,091 INFO L495 AbstractCegarLoop]: Abstraction has 6875 states and 9532 transitions. [2022-11-16 12:17:36,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:36,091 INFO L276 IsEmpty]: Start isEmpty. Operand 6875 states and 9532 transitions. [2022-11-16 12:17:36,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:17:36,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:17:36,095 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, 1] [2022-11-16 12:17:36,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:17:36,095 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:17:36,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:36,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1281154285, now seen corresponding path program 1 times [2022-11-16 12:17:36,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:36,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609511555] [2022-11-16 12:17:36,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:36,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:17:36,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:36,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609511555] [2022-11-16 12:17:36,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609511555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:36,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:36,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:17:36,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466893668] [2022-11-16 12:17:36,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:36,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:17:36,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:36,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:17:36,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:17:36,243 INFO L87 Difference]: Start difference. First operand 6875 states and 9532 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:53,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:17:53,702 INFO L93 Difference]: Finished difference Result 31167 states and 44465 transitions. [2022-11-16 12:17:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:17:53,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 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 69 [2022-11-16 12:17:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:17:53,745 INFO L225 Difference]: With dead ends: 31167 [2022-11-16 12:17:53,746 INFO L226 Difference]: Without dead ends: 28065 [2022-11-16 12:17:53,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:17:53,753 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 3151 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:17:53,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3151 Valid, 1139 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:17:53,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28065 states. [2022-11-16 12:17:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28065 to 6893. [2022-11-16 12:17:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6893 states, 6889 states have (on average 1.3868485992161417) internal successors, (9554), 6892 states have internal predecessors, (9554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:57,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6893 states to 6893 states and 9554 transitions. [2022-11-16 12:17:57,278 INFO L78 Accepts]: Start accepts. Automaton has 6893 states and 9554 transitions. Word has length 69 [2022-11-16 12:17:57,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:17:57,279 INFO L495 AbstractCegarLoop]: Abstraction has 6893 states and 9554 transitions. [2022-11-16 12:17:57,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:57,279 INFO L276 IsEmpty]: Start isEmpty. Operand 6893 states and 9554 transitions. [2022-11-16 12:17:57,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:17:57,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:17:57,282 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, 1] [2022-11-16 12:17:57,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:17:57,283 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:17:57,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:57,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1218623503, now seen corresponding path program 1 times [2022-11-16 12:17:57,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:57,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188977064] [2022-11-16 12:17:57,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:57,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:57,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:17:57,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:57,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188977064] [2022-11-16 12:17:57,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188977064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:57,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:57,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:17:57,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013772792] [2022-11-16 12:17:57,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:57,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:17:57,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:57,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:17:57,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:17:57,896 INFO L87 Difference]: Start difference. First operand 6893 states and 9554 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:16,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:16,390 INFO L93 Difference]: Finished difference Result 35017 states and 50426 transitions. [2022-11-16 12:18:16,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:18:16,393 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 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 69 [2022-11-16 12:18:16,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:16,429 INFO L225 Difference]: With dead ends: 35017 [2022-11-16 12:18:16,429 INFO L226 Difference]: Without dead ends: 30384 [2022-11-16 12:18:16,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:18:16,436 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 3922 mSDsluCounter, 3490 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3922 SdHoareTripleChecker+Valid, 4232 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:16,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3922 Valid, 4232 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:18:16,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30384 states. [2022-11-16 12:18:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30384 to 6879. [2022-11-16 12:18:20,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6879 states, 6876 states have (on average 1.3858347876672483) internal successors, (9529), 6878 states have internal predecessors, (9529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6879 states to 6879 states and 9529 transitions. [2022-11-16 12:18:20,303 INFO L78 Accepts]: Start accepts. Automaton has 6879 states and 9529 transitions. Word has length 69 [2022-11-16 12:18:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:20,304 INFO L495 AbstractCegarLoop]: Abstraction has 6879 states and 9529 transitions. [2022-11-16 12:18:20,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6879 states and 9529 transitions. [2022-11-16 12:18:20,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-16 12:18:20,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:20,308 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, 1, 1] [2022-11-16 12:18:20,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:18:20,308 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:18:20,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:20,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1903821217, now seen corresponding path program 1 times [2022-11-16 12:18:20,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:18:20,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363635677] [2022-11-16 12:18:20,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:20,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:18:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:20,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:20,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:18:20,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363635677] [2022-11-16 12:18:20,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363635677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:20,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:20,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:18:20,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908252063] [2022-11-16 12:18:20,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:20,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:20,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:18:20,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:20,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:20,387 INFO L87 Difference]: Start difference. First operand 6879 states and 9529 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:24,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:24,055 INFO L93 Difference]: Finished difference Result 10380 states and 14513 transitions. [2022-11-16 12:18:24,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:24,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-11-16 12:18:24,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:24,063 INFO L225 Difference]: With dead ends: 10380 [2022-11-16 12:18:24,063 INFO L226 Difference]: Without dead ends: 6885 [2022-11-16 12:18:24,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:24,067 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 356 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:24,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1320 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:18:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6885 states. [2022-11-16 12:18:27,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6885 to 6879. [2022-11-16 12:18:27,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6879 states, 6876 states have (on average 1.3749272833042467) internal successors, (9454), 6878 states have internal predecessors, (9454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:27,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6879 states to 6879 states and 9454 transitions. [2022-11-16 12:18:27,204 INFO L78 Accepts]: Start accepts. Automaton has 6879 states and 9454 transitions. Word has length 70 [2022-11-16 12:18:27,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:27,205 INFO L495 AbstractCegarLoop]: Abstraction has 6879 states and 9454 transitions. [2022-11-16 12:18:27,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:27,205 INFO L276 IsEmpty]: Start isEmpty. Operand 6879 states and 9454 transitions. [2022-11-16 12:18:27,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-16 12:18:27,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:27,210 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, 1, 1, 1] [2022-11-16 12:18:27,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:18:27,211 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:18:27,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:27,211 INFO L85 PathProgramCache]: Analyzing trace with hash 309786751, now seen corresponding path program 1 times [2022-11-16 12:18:27,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:18:27,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993827374] [2022-11-16 12:18:27,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:27,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:18:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:27,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:18:27,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993827374] [2022-11-16 12:18:27,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993827374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:27,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:27,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:18:27,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198128924] [2022-11-16 12:18:27,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:27,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:27,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:18:27,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:27,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:27,279 INFO L87 Difference]: Start difference. First operand 6879 states and 9454 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:32,614 INFO L93 Difference]: Finished difference Result 12487 states and 17340 transitions. [2022-11-16 12:18:32,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:32,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2022-11-16 12:18:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:32,622 INFO L225 Difference]: With dead ends: 12487 [2022-11-16 12:18:32,622 INFO L226 Difference]: Without dead ends: 8378 [2022-11-16 12:18:32,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:32,627 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 526 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:32,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 827 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:18:32,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8378 states. [2022-11-16 12:18:36,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8378 to 6326. [2022-11-16 12:18:36,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6326 states, 6323 states have (on average 1.3803574252728135) internal successors, (8728), 6325 states have internal predecessors, (8728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6326 states to 6326 states and 8728 transitions. [2022-11-16 12:18:36,223 INFO L78 Accepts]: Start accepts. Automaton has 6326 states and 8728 transitions. Word has length 71 [2022-11-16 12:18:36,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:36,223 INFO L495 AbstractCegarLoop]: Abstraction has 6326 states and 8728 transitions. [2022-11-16 12:18:36,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand 6326 states and 8728 transitions. [2022-11-16 12:18:36,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-16 12:18:36,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:36,228 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, 1, 1, 1] [2022-11-16 12:18:36,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:18:36,229 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:18:36,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash 988722201, now seen corresponding path program 1 times [2022-11-16 12:18:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:18:36,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37590766] [2022-11-16 12:18:36,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:36,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:18:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:36,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:18:36,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37590766] [2022-11-16 12:18:36,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37590766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:36,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:36,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:18:36,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536122798] [2022-11-16 12:18:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:36,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:36,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:18:36,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:36,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:36,293 INFO L87 Difference]: Start difference. First operand 6326 states and 8728 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:41,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:41,952 INFO L93 Difference]: Finished difference Result 12989 states and 18162 transitions. [2022-11-16 12:18:41,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:41,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2022-11-16 12:18:41,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:41,962 INFO L225 Difference]: With dead ends: 12989 [2022-11-16 12:18:41,962 INFO L226 Difference]: Without dead ends: 9162 [2022-11-16 12:18:41,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:41,966 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 425 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:41,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 607 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:18:41,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9162 states. [2022-11-16 12:18:47,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9162 to 9133. [2022-11-16 12:18:47,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9133 states, 9131 states have (on average 1.4028036359653926) internal successors, (12809), 9132 states have internal predecessors, (12809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:47,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9133 states to 9133 states and 12809 transitions. [2022-11-16 12:18:47,581 INFO L78 Accepts]: Start accepts. Automaton has 9133 states and 12809 transitions. Word has length 71 [2022-11-16 12:18:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:47,581 INFO L495 AbstractCegarLoop]: Abstraction has 9133 states and 12809 transitions. [2022-11-16 12:18:47,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:47,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9133 states and 12809 transitions. [2022-11-16 12:18:47,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 12:18:47,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:47,585 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, 1, 1, 1, 1] [2022-11-16 12:18:47,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 12:18:47,585 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:18:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1452200258, now seen corresponding path program 1 times [2022-11-16 12:18:47,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:18:47,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958469973] [2022-11-16 12:18:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:47,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:18:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:47,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:47,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:18:47,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958469973] [2022-11-16 12:18:47,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958469973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:47,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:47,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:18:47,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916982452] [2022-11-16 12:18:47,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:47,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:18:47,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:18:47,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:18:47,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:18:47,903 INFO L87 Difference]: Start difference. First operand 9133 states and 12809 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:56,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:56,123 INFO L93 Difference]: Finished difference Result 14544 states and 20526 transitions. [2022-11-16 12:18:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:18:56,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 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 72 [2022-11-16 12:18:56,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:56,135 INFO L225 Difference]: With dead ends: 14544 [2022-11-16 12:18:56,136 INFO L226 Difference]: Without dead ends: 11960 [2022-11-16 12:18:56,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:18:56,139 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 2692 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2692 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:56,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2692 Valid, 1514 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:18:56,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11960 states. [2022-11-16 12:19:01,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11960 to 9130. [2022-11-16 12:19:01,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9128 states have (on average 1.4026073619631902) internal successors, (12803), 9129 states have internal predecessors, (12803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:01,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 12803 transitions. [2022-11-16 12:19:01,020 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 12803 transitions. Word has length 72 [2022-11-16 12:19:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:01,020 INFO L495 AbstractCegarLoop]: Abstraction has 9130 states and 12803 transitions. [2022-11-16 12:19:01,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 12803 transitions. [2022-11-16 12:19:01,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-16 12:19:01,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:01,024 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, 1, 1, 1, 1, 1] [2022-11-16 12:19:01,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 12:19:01,025 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:19:01,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:01,025 INFO L85 PathProgramCache]: Analyzing trace with hash 829917559, now seen corresponding path program 1 times [2022-11-16 12:19:01,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:01,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243953902] [2022-11-16 12:19:01,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:01,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:01,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:01,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243953902] [2022-11-16 12:19:01,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243953902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:01,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:01,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:19:01,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289352194] [2022-11-16 12:19:01,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:01,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:01,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:01,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:01,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:01,097 INFO L87 Difference]: Start difference. First operand 9130 states and 12803 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:07,518 INFO L93 Difference]: Finished difference Result 14150 states and 19965 transitions. [2022-11-16 12:19:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:07,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-16 12:19:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:07,526 INFO L225 Difference]: With dead ends: 14150 [2022-11-16 12:19:07,527 INFO L226 Difference]: Without dead ends: 9134 [2022-11-16 12:19:07,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:07,531 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 245 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:07,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 983 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:19:07,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2022-11-16 12:19:13,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 9130. [2022-11-16 12:19:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9128 states have (on average 1.389241893076249) internal successors, (12681), 9129 states have internal predecessors, (12681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:13,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 12681 transitions. [2022-11-16 12:19:13,557 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 12681 transitions. Word has length 73 [2022-11-16 12:19:13,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:13,558 INFO L495 AbstractCegarLoop]: Abstraction has 9130 states and 12681 transitions. [2022-11-16 12:19:13,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:13,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 12681 transitions. [2022-11-16 12:19:13,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 12:19:13,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:13,562 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:13,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 12:19:13,562 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:19:13,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:13,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1577670508, now seen corresponding path program 1 times [2022-11-16 12:19:13,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:13,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50374781] [2022-11-16 12:19:13,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:13,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:14,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:14,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50374781] [2022-11-16 12:19:14,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50374781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:14,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:14,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:19:14,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647192036] [2022-11-16 12:19:14,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:14,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:19:14,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:14,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:19:14,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:14,088 INFO L87 Difference]: Start difference. First operand 9130 states and 12681 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:35,622 INFO L93 Difference]: Finished difference Result 32337 states and 45685 transitions. [2022-11-16 12:19:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:19:35,622 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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 75 [2022-11-16 12:19:35,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:35,660 INFO L225 Difference]: With dead ends: 32337 [2022-11-16 12:19:35,660 INFO L226 Difference]: Without dead ends: 29678 [2022-11-16 12:19:35,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2022-11-16 12:19:35,667 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 3599 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3599 SdHoareTripleChecker+Valid, 3704 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:35,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3599 Valid, 3704 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:19:35,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29678 states. [2022-11-16 12:19:41,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29678 to 8989. [2022-11-16 12:19:41,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8989 states, 8987 states have (on average 1.3915655947479693) internal successors, (12506), 8988 states have internal predecessors, (12506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8989 states to 8989 states and 12506 transitions. [2022-11-16 12:19:41,290 INFO L78 Accepts]: Start accepts. Automaton has 8989 states and 12506 transitions. Word has length 75 [2022-11-16 12:19:41,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:41,290 INFO L495 AbstractCegarLoop]: Abstraction has 8989 states and 12506 transitions. [2022-11-16 12:19:41,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:41,290 INFO L276 IsEmpty]: Start isEmpty. Operand 8989 states and 12506 transitions. [2022-11-16 12:19:41,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 12:19:41,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:41,296 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:41,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 12:19:41,296 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:19:41,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:41,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2128427700, now seen corresponding path program 1 times [2022-11-16 12:19:41,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:41,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076297489] [2022-11-16 12:19:41,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:41,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:41,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076297489] [2022-11-16 12:19:41,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076297489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:41,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:41,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:19:41,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658666431] [2022-11-16 12:19:41,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:41,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:41,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:41,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:41,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:41,359 INFO L87 Difference]: Start difference. First operand 8989 states and 12506 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:48,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:48,789 INFO L93 Difference]: Finished difference Result 16990 states and 23794 transitions. [2022-11-16 12:19:48,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:48,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2022-11-16 12:19:48,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:48,800 INFO L225 Difference]: With dead ends: 16990 [2022-11-16 12:19:48,801 INFO L226 Difference]: Without dead ends: 11247 [2022-11-16 12:19:48,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:48,805 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 308 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:48,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 465 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:19:48,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-11-16 12:19:53,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 8576. [2022-11-16 12:19:53,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8576 states, 8575 states have (on average 1.3945189504373179) internal successors, (11958), 8575 states have internal predecessors, (11958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8576 states to 8576 states and 11958 transitions. [2022-11-16 12:19:53,916 INFO L78 Accepts]: Start accepts. Automaton has 8576 states and 11958 transitions. Word has length 75 [2022-11-16 12:19:53,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:53,916 INFO L495 AbstractCegarLoop]: Abstraction has 8576 states and 11958 transitions. [2022-11-16 12:19:53,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:53,916 INFO L276 IsEmpty]: Start isEmpty. Operand 8576 states and 11958 transitions. [2022-11-16 12:19:53,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 12:19:53,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:53,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:53,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 12:19:53,922 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:19:53,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:53,923 INFO L85 PathProgramCache]: Analyzing trace with hash -485578834, now seen corresponding path program 1 times [2022-11-16 12:19:53,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:53,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321696302] [2022-11-16 12:19:53,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:53,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:54,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:54,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321696302] [2022-11-16 12:19:54,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321696302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:54,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:54,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:19:54,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750841210] [2022-11-16 12:19:54,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:54,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:19:54,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:54,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:19:54,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:19:54,087 INFO L87 Difference]: Start difference. First operand 8576 states and 11958 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:12,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:12,947 INFO L93 Difference]: Finished difference Result 35295 states and 50312 transitions. [2022-11-16 12:20:12,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:12,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-16 12:20:12,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:12,983 INFO L225 Difference]: With dead ends: 35295 [2022-11-16 12:20:12,983 INFO L226 Difference]: Without dead ends: 28066 [2022-11-16 12:20:12,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:20:12,992 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1766 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:12,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 1095 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:20:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28066 states. [2022-11-16 12:20:23,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28066 to 15803. [2022-11-16 12:20:23,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15803 states, 15802 states have (on average 1.3963422351601062) internal successors, (22065), 15802 states have internal predecessors, (22065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:23,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15803 states to 15803 states and 22065 transitions. [2022-11-16 12:20:23,895 INFO L78 Accepts]: Start accepts. Automaton has 15803 states and 22065 transitions. Word has length 84 [2022-11-16 12:20:23,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:23,895 INFO L495 AbstractCegarLoop]: Abstraction has 15803 states and 22065 transitions. [2022-11-16 12:20:23,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:23,895 INFO L276 IsEmpty]: Start isEmpty. Operand 15803 states and 22065 transitions. [2022-11-16 12:20:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-16 12:20:23,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:23,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:23,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 12:20:23,905 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:20:23,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1437916483, now seen corresponding path program 1 times [2022-11-16 12:20:23,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:23,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114317768] [2022-11-16 12:20:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:23,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:24,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:24,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114317768] [2022-11-16 12:20:24,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114317768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:24,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:24,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:20:24,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91679944] [2022-11-16 12:20:24,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:24,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:24,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:24,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:24,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:24,066 INFO L87 Difference]: Start difference. First operand 15803 states and 22065 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:38,640 INFO L93 Difference]: Finished difference Result 26005 states and 36306 transitions. [2022-11-16 12:20:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:38,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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 85 [2022-11-16 12:20:38,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:38,663 INFO L225 Difference]: With dead ends: 26005 [2022-11-16 12:20:38,663 INFO L226 Difference]: Without dead ends: 20153 [2022-11-16 12:20:38,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:38,670 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 909 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:38,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1167 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:20:38,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20153 states. [2022-11-16 12:20:51,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20153 to 17585. [2022-11-16 12:20:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17585 states, 17584 states have (on average 1.3942220200181983) internal successors, (24516), 17584 states have internal predecessors, (24516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:51,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17585 states to 17585 states and 24516 transitions. [2022-11-16 12:20:51,953 INFO L78 Accepts]: Start accepts. Automaton has 17585 states and 24516 transitions. Word has length 85 [2022-11-16 12:20:51,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:51,954 INFO L495 AbstractCegarLoop]: Abstraction has 17585 states and 24516 transitions. [2022-11-16 12:20:51,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:51,954 INFO L276 IsEmpty]: Start isEmpty. Operand 17585 states and 24516 transitions. [2022-11-16 12:20:51,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 12:20:51,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:51,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:51,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 12:20:51,968 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:20:51,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:51,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1391083626, now seen corresponding path program 1 times [2022-11-16 12:20:51,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:51,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116662486] [2022-11-16 12:20:51,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:51,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:52,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:52,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:52,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116662486] [2022-11-16 12:20:52,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116662486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:52,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:52,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:20:52,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150291956] [2022-11-16 12:20:52,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:52,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:52,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:52,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:52,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:52,055 INFO L87 Difference]: Start difference. First operand 17585 states and 24516 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:03,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:03,396 INFO L93 Difference]: Finished difference Result 26307 states and 36670 transitions. [2022-11-16 12:21:03,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:03,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2022-11-16 12:21:03,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:03,414 INFO L225 Difference]: With dead ends: 26307 [2022-11-16 12:21:03,415 INFO L226 Difference]: Without dead ends: 14755 [2022-11-16 12:21:03,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:03,422 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 215 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:03,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 812 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:21:03,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14755 states. [2022-11-16 12:21:14,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14755 to 14753. [2022-11-16 12:21:14,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14753 states, 14752 states have (on average 1.3800162689804771) internal successors, (20358), 14752 states have internal predecessors, (20358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:14,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14753 states to 14753 states and 20358 transitions. [2022-11-16 12:21:14,818 INFO L78 Accepts]: Start accepts. Automaton has 14753 states and 20358 transitions. Word has length 86 [2022-11-16 12:21:14,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:14,818 INFO L495 AbstractCegarLoop]: Abstraction has 14753 states and 20358 transitions. [2022-11-16 12:21:14,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:14,819 INFO L276 IsEmpty]: Start isEmpty. Operand 14753 states and 20358 transitions. [2022-11-16 12:21:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 12:21:14,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:14,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:14,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 12:21:14,830 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:21:14,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:14,831 INFO L85 PathProgramCache]: Analyzing trace with hash -214737700, now seen corresponding path program 1 times [2022-11-16 12:21:14,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:14,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066531662] [2022-11-16 12:21:14,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:14,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:14,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:14,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066531662] [2022-11-16 12:21:14,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066531662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:14,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:14,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:21:14,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740386510] [2022-11-16 12:21:14,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:14,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:14,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:14,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:14,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:14,961 INFO L87 Difference]: Start difference. First operand 14753 states and 20358 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:36,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:36,903 INFO L93 Difference]: Finished difference Result 40825 states and 56776 transitions. [2022-11-16 12:21:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:36,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2022-11-16 12:21:36,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:36,942 INFO L225 Difference]: With dead ends: 40825 [2022-11-16 12:21:36,942 INFO L226 Difference]: Without dead ends: 27349 [2022-11-16 12:21:36,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:36,952 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 142 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:36,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 726 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:21:36,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27349 states. [2022-11-16 12:21:58,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27349 to 25971. [2022-11-16 12:21:58,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25971 states, 25970 states have (on average 1.383673469387755) internal successors, (35934), 25970 states have internal predecessors, (35934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25971 states to 25971 states and 35934 transitions. [2022-11-16 12:21:58,520 INFO L78 Accepts]: Start accepts. Automaton has 25971 states and 35934 transitions. Word has length 86 [2022-11-16 12:21:58,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:58,520 INFO L495 AbstractCegarLoop]: Abstraction has 25971 states and 35934 transitions. [2022-11-16 12:21:58,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 25971 states and 35934 transitions. [2022-11-16 12:21:58,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 12:21:58,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:58,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:58,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 12:21:58,528 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-11-16 12:21:58,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:58,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1393258625, now seen corresponding path program 1 times [2022-11-16 12:21:58,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:58,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272626063] [2022-11-16 12:21:58,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:58,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:58,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:58,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272626063] [2022-11-16 12:21:58,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272626063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:58,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:58,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:21:58,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90486982] [2022-11-16 12:21:58,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:58,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:58,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:58,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:58,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:58,652 INFO L87 Difference]: Start difference. First operand 25971 states and 35934 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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)