./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/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_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/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_2ce96c65-20a8-4335-98ad-68900b75ede8/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 61079a62c86de0622c6f0d8d69ab5d3bd5c88209c75f4f3a60aa83a2a40500fd --- 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 11:42:27,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:42:27,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:42:27,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:42:27,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:42:27,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:42:27,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:42:27,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:42:27,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:42:27,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:42:27,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:42:27,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:42:27,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:42:27,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:42:27,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:42:27,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:42:27,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:42:27,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:42:27,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:42:27,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:42:27,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:42:27,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:42:27,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:42:27,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:42:27,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:42:27,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:42:27,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:42:27,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:42:27,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:42:27,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:42:27,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:42:27,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:42:27,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:42:27,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:42:27,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:42:27,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:42:27,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:42:27,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:42:27,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:42:27,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:42:27,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:42:27,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:42:27,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:42:27,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:42:27,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:42:27,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:42:27,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:42:27,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:42:27,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:42:27,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:42:27,207 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:42:27,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:42:27,209 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:42:27,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:42:27,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:42:27,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:42:27,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:42:27,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:42:27,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:42:27,210 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:42:27,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:42:27,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:42:27,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:42:27,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:42:27,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:42:27,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:42:27,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:42:27,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:42:27,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:42:27,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:42:27,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:42:27,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:42:27,214 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:42:27,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:42:27,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:42:27,215 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_2ce96c65-20a8-4335-98ad-68900b75ede8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61079a62c86de0622c6f0d8d69ab5d3bd5c88209c75f4f3a60aa83a2a40500fd [2022-11-16 11:42:27,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:42:27,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:42:27,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:42:27,560 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:42:27,561 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:42:27,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-16 11:42:27,649 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/data/2b2e00aad/8934640ac76c45daab83091f50d2b911/FLAG5a365620b [2022-11-16 11:42:28,718 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:42:28,718 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-16 11:42:28,784 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/data/2b2e00aad/8934640ac76c45daab83091f50d2b911/FLAG5a365620b [2022-11-16 11:42:29,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/data/2b2e00aad/8934640ac76c45daab83091f50d2b911 [2022-11-16 11:42:29,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:42:29,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:42:29,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:42:29,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:42:29,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:42:29,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:42:29" (1/1) ... [2022-11-16 11:42:29,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8da820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:29, skipping insertion in model container [2022-11-16 11:42:29,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:42:29" (1/1) ... [2022-11-16 11:42:29,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:42:29,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:42:30,639 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82693,82706] [2022-11-16 11:42:30,793 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[113477,113490] [2022-11-16 11:42:31,029 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[165794,165807] [2022-11-16 11:42:31,151 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[197365,197378] [2022-11-16 11:42:31,195 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[205886,205899] [2022-11-16 11:42:31,203 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[207836,207849] [2022-11-16 11:42:31,254 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[224171,224184] [2022-11-16 11:42:31,276 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231245,231258] [2022-11-16 11:42:31,379 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[259571,259584] [2022-11-16 11:42:31,465 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[287337,287350] [2022-11-16 11:42:31,720 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[370939,370952] [2022-11-16 11:42:31,775 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[389606,389619] [2022-11-16 11:42:31,834 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[408649,408662] [2022-11-16 11:42:31,856 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[415665,415678] [2022-11-16 11:42:31,869 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[419162,419175] [2022-11-16 11:42:31,911 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[433807,433820] [2022-11-16 11:42:31,984 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[448287,448300] [2022-11-16 11:42:32,064 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[480365,480378] [2022-11-16 11:42:32,317 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[569807,569820] [2022-11-16 11:42:32,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:42:32,589 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:42:32,968 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82693,82706] [2022-11-16 11:42:33,105 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[113477,113490] [2022-11-16 11:42:33,227 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[165794,165807] [2022-11-16 11:42:33,303 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[197365,197378] [2022-11-16 11:42:33,325 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[205886,205899] [2022-11-16 11:42:33,331 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[207836,207849] [2022-11-16 11:42:33,373 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[224171,224184] [2022-11-16 11:42:33,392 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231245,231258] [2022-11-16 11:42:33,466 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[259571,259584] [2022-11-16 11:42:33,541 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[287337,287350] [2022-11-16 11:42:33,747 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[370939,370952] [2022-11-16 11:42:33,795 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[389606,389619] [2022-11-16 11:42:33,875 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[408649,408662] [2022-11-16 11:42:33,893 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[415665,415678] [2022-11-16 11:42:33,904 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[419162,419175] [2022-11-16 11:42:33,939 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[433807,433820] [2022-11-16 11:42:33,973 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[448287,448300] [2022-11-16 11:42:34,047 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[480365,480378] [2022-11-16 11:42:34,247 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_2ce96c65-20a8-4335-98ad-68900b75ede8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[569807,569820] [2022-11-16 11:42:34,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:42:34,521 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:42:34,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34 WrapperNode [2022-11-16 11:42:34,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:42:34,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:42:34,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:42:34,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:42:34,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:34,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:34,990 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28483 [2022-11-16 11:42:34,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:42:34,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:42:34,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:42:34,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:42:35,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:35,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:35,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:35,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:35,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:35,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:35,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:35,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:35,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:42:35,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:42:35,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:42:35,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:42:35,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (1/1) ... [2022-11-16 11:42:35,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:42:35,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:35,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:35,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce96c65-20a8-4335-98ad-68900b75ede8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:42:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:42:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:42:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:42:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:42:36,764 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:42:36,766 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:42:48,766 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:42:48,808 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:42:48,808 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:42:48,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:42:48 BoogieIcfgContainer [2022-11-16 11:42:48,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:42:48,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:42:48,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:42:48,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:42:48,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:42:29" (1/3) ... [2022-11-16 11:42:48,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289dab51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:42:48, skipping insertion in model container [2022-11-16 11:42:48,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:34" (2/3) ... [2022-11-16 11:42:48,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289dab51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:42:48, skipping insertion in model container [2022-11-16 11:42:48,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:42:48" (3/3) ... [2022-11-16 11:42:48,829 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-16 11:42:48,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:42:48,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-16 11:42:49,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:42:49,046 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;@f2f5b3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:42:49,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-11-16 11:42:49,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 6183 states, 6163 states have (on average 1.8075612526367029) internal successors, (11140), 6182 states have internal predecessors, (11140), 0 states have call successors, (0), 0 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 11:42:49,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 11:42:49,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:49,121 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] [2022-11-16 11:42:49,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:42:49,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash 642976960, now seen corresponding path program 1 times [2022-11-16 11:42:49,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:49,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207971046] [2022-11-16 11:42:49,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:49,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:49,875 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 11:42:49,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:49,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207971046] [2022-11-16 11:42:49,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207971046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:49,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:49,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:42:49,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298315938] [2022-11-16 11:42:49,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:49,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:42:49,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:49,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:42:49,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:42:49,933 INFO L87 Difference]: Start difference. First operand has 6183 states, 6163 states have (on average 1.8075612526367029) internal successors, (11140), 6182 states have internal predecessors, (11140), 0 states have call successors, (0), 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 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 11:42:56,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:56,332 INFO L93 Difference]: Finished difference Result 9223 states and 16402 transitions. [2022-11-16 11:42:56,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:42:56,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-11-16 11:42:56,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:42:56,372 INFO L225 Difference]: With dead ends: 9223 [2022-11-16 11:42:56,372 INFO L226 Difference]: Without dead ends: 5815 [2022-11-16 11:42:56,382 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 11:42:56,392 INFO L413 NwaCegarLoop]: 4776 mSDtfsCounter, 29236 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 4688 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29236 SdHoareTripleChecker+Valid, 5738 SdHoareTripleChecker+Invalid, 4751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:42:56,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29236 Valid, 5738 Invalid, 4751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 4688 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-16 11:42:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5815 states. [2022-11-16 11:42:56,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5815 to 5785. [2022-11-16 11:42:56,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 5766 states have (on average 1.3331599028789456) internal successors, (7687), 5784 states have internal predecessors, (7687), 0 states have call successors, (0), 0 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 11:42:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 7687 transitions. [2022-11-16 11:42:56,667 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 7687 transitions. Word has length 77 [2022-11-16 11:42:56,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:42:56,668 INFO L495 AbstractCegarLoop]: Abstraction has 5785 states and 7687 transitions. [2022-11-16 11:42:56,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 11:42:56,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 7687 transitions. [2022-11-16 11:42:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 11:42:56,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:56,680 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] [2022-11-16 11:42:56,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:42:56,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:42:56,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:56,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1955930775, now seen corresponding path program 1 times [2022-11-16 11:42:56,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:56,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261595] [2022-11-16 11:42:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:56,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:57,441 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 11:42:57,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:57,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261595] [2022-11-16 11:42:57,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:57,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:57,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:42:57,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749316615] [2022-11-16 11:42:57,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:57,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:42:57,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:57,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:42:57,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:42:57,446 INFO L87 Difference]: Start difference. First operand 5785 states and 7687 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 11:43:08,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:08,294 INFO L93 Difference]: Finished difference Result 6282 states and 8361 transitions. [2022-11-16 11:43:08,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:43:08,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 11:43:08,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:08,318 INFO L225 Difference]: With dead ends: 6282 [2022-11-16 11:43:08,318 INFO L226 Difference]: Without dead ends: 6277 [2022-11-16 11:43:08,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:43:08,324 INFO L413 NwaCegarLoop]: 3022 mSDtfsCounter, 28593 mSDsluCounter, 10471 mSDsCounter, 0 mSdLazyCounter, 15074 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28593 SdHoareTripleChecker+Valid, 13493 SdHoareTripleChecker+Invalid, 15135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 15074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:08,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28593 Valid, 13493 Invalid, 15135 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [61 Valid, 15074 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-16 11:43:08,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6277 states. [2022-11-16 11:43:08,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6277 to 5785. [2022-11-16 11:43:08,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 5766 states have (on average 1.3329864724245577) internal successors, (7686), 5784 states have internal predecessors, (7686), 0 states have call successors, (0), 0 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 11:43:08,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 7686 transitions. [2022-11-16 11:43:08,598 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 7686 transitions. Word has length 78 [2022-11-16 11:43:08,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:08,598 INFO L495 AbstractCegarLoop]: Abstraction has 5785 states and 7686 transitions. [2022-11-16 11:43:08,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 11:43:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 7686 transitions. [2022-11-16 11:43:08,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 11:43:08,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:08,609 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] [2022-11-16 11:43:08,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:43:08,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:43:08,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:08,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2136533534, now seen corresponding path program 1 times [2022-11-16 11:43:08,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:08,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292482351] [2022-11-16 11:43:08,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:08,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:08,857 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 11:43:08,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:08,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292482351] [2022-11-16 11:43:08,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292482351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:08,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:08,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:43:08,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562751458] [2022-11-16 11:43:08,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:08,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:43:08,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:08,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:43:08,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:43:08,861 INFO L87 Difference]: Start difference. First operand 5785 states and 7686 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 11:43:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:14,141 INFO L93 Difference]: Finished difference Result 11480 states and 15434 transitions. [2022-11-16 11:43:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:43:14,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 11:43:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:14,172 INFO L225 Difference]: With dead ends: 11480 [2022-11-16 11:43:14,172 INFO L226 Difference]: Without dead ends: 7760 [2022-11-16 11:43:14,181 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 11:43:14,182 INFO L413 NwaCegarLoop]: 2954 mSDtfsCounter, 23497 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 4727 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23497 SdHoareTripleChecker+Valid, 3936 SdHoareTripleChecker+Invalid, 4814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:14,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23497 Valid, 3936 Invalid, 4814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 4727 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-16 11:43:14,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7760 states. [2022-11-16 11:43:14,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7760 to 7736. [2022-11-16 11:43:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7736 states, 7717 states have (on average 1.3389918362057796) internal successors, (10333), 7735 states have internal predecessors, (10333), 0 states have call successors, (0), 0 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 11:43:14,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7736 states to 7736 states and 10333 transitions. [2022-11-16 11:43:14,674 INFO L78 Accepts]: Start accepts. Automaton has 7736 states and 10333 transitions. Word has length 78 [2022-11-16 11:43:14,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:14,677 INFO L495 AbstractCegarLoop]: Abstraction has 7736 states and 10333 transitions. [2022-11-16 11:43:14,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 11:43:14,678 INFO L276 IsEmpty]: Start isEmpty. Operand 7736 states and 10333 transitions. [2022-11-16 11:43:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 11:43:14,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:14,692 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] [2022-11-16 11:43:14,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:43:14,695 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:43:14,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:14,697 INFO L85 PathProgramCache]: Analyzing trace with hash 816480341, now seen corresponding path program 1 times [2022-11-16 11:43:14,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:14,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855263236] [2022-11-16 11:43:14,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:14,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:14,926 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 11:43:14,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:14,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855263236] [2022-11-16 11:43:14,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855263236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:14,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:14,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:43:14,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242499580] [2022-11-16 11:43:14,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:14,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:43:14,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:14,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:43:14,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:43:14,931 INFO L87 Difference]: Start difference. First operand 7736 states and 10333 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:43:19,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:19,746 INFO L93 Difference]: Finished difference Result 15140 states and 20342 transitions. [2022-11-16 11:43:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:43:19,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-11-16 11:43:19,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:19,781 INFO L225 Difference]: With dead ends: 15140 [2022-11-16 11:43:19,781 INFO L226 Difference]: Without dead ends: 9760 [2022-11-16 11:43:19,791 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 11:43:19,792 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 21329 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21329 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 4261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:19,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21329 Valid, 3626 Invalid, 4261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-16 11:43:19,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9760 states. [2022-11-16 11:43:20,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9760 to 9734. [2022-11-16 11:43:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9734 states, 9715 states have (on average 1.3288728769943388) internal successors, (12910), 9733 states have internal predecessors, (12910), 0 states have call successors, (0), 0 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 11:43:20,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9734 states to 9734 states and 12910 transitions. [2022-11-16 11:43:20,418 INFO L78 Accepts]: Start accepts. Automaton has 9734 states and 12910 transitions. Word has length 79 [2022-11-16 11:43:20,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:20,419 INFO L495 AbstractCegarLoop]: Abstraction has 9734 states and 12910 transitions. [2022-11-16 11:43:20,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:43:20,419 INFO L276 IsEmpty]: Start isEmpty. Operand 9734 states and 12910 transitions. [2022-11-16 11:43:20,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 11:43:20,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:20,433 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] [2022-11-16 11:43:20,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:43:20,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:43:20,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:20,435 INFO L85 PathProgramCache]: Analyzing trace with hash 42417281, now seen corresponding path program 1 times [2022-11-16 11:43:20,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:20,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920611181] [2022-11-16 11:43:20,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:20,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:21,496 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 11:43:21,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:21,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920611181] [2022-11-16 11:43:21,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920611181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:21,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:21,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:43:21,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684774394] [2022-11-16 11:43:21,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:21,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:43:21,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:21,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:43:21,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:43:21,498 INFO L87 Difference]: Start difference. First operand 9734 states and 12910 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:43:29,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:29,418 INFO L93 Difference]: Finished difference Result 24297 states and 34725 transitions. [2022-11-16 11:43:29,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 11:43:29,418 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-11-16 11:43:29,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:29,463 INFO L225 Difference]: With dead ends: 24297 [2022-11-16 11:43:29,463 INFO L226 Difference]: Without dead ends: 24289 [2022-11-16 11:43:29,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 11:43:29,469 INFO L413 NwaCegarLoop]: 6230 mSDtfsCounter, 46056 mSDsluCounter, 36605 mSDsCounter, 0 mSdLazyCounter, 5346 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46056 SdHoareTripleChecker+Valid, 42835 SdHoareTripleChecker+Invalid, 5403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 5346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:29,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46056 Valid, 42835 Invalid, 5403 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [57 Valid, 5346 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-16 11:43:29,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24289 states. [2022-11-16 11:43:30,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24289 to 9726. [2022-11-16 11:43:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9726 states, 9708 states have (on average 1.3290070045323445) internal successors, (12902), 9725 states have internal predecessors, (12902), 0 states have call successors, (0), 0 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 11:43:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9726 states to 9726 states and 12902 transitions. [2022-11-16 11:43:30,328 INFO L78 Accepts]: Start accepts. Automaton has 9726 states and 12902 transitions. Word has length 79 [2022-11-16 11:43:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:30,328 INFO L495 AbstractCegarLoop]: Abstraction has 9726 states and 12902 transitions. [2022-11-16 11:43:30,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:43:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 9726 states and 12902 transitions. [2022-11-16 11:43:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 11:43:30,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:30,345 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] [2022-11-16 11:43:30,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:43:30,346 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:43:30,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1994039540, now seen corresponding path program 1 times [2022-11-16 11:43:30,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:30,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235098278] [2022-11-16 11:43:30,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:30,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:30,536 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 11:43:30,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:30,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235098278] [2022-11-16 11:43:30,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235098278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:30,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:30,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:43:30,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228271666] [2022-11-16 11:43:30,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:30,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:43:30,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:30,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:43:30,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:43:30,539 INFO L87 Difference]: Start difference. First operand 9726 states and 12902 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:43:35,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:35,278 INFO L93 Difference]: Finished difference Result 17851 states and 23937 transitions. [2022-11-16 11:43:35,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:43:35,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-11-16 11:43:35,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:35,301 INFO L225 Difference]: With dead ends: 17851 [2022-11-16 11:43:35,301 INFO L226 Difference]: Without dead ends: 11721 [2022-11-16 11:43:35,311 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 11:43:35,312 INFO L413 NwaCegarLoop]: 2427 mSDtfsCounter, 17777 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 3321 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17777 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 3366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:35,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17777 Valid, 3189 Invalid, 3366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3321 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-16 11:43:35,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11721 states. [2022-11-16 11:43:36,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11721 to 11692. [2022-11-16 11:43:36,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11692 states, 11674 states have (on average 1.3539489463765633) internal successors, (15806), 11691 states have internal predecessors, (15806), 0 states have call successors, (0), 0 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 11:43:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 15806 transitions. [2022-11-16 11:43:36,765 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 15806 transitions. Word has length 79 [2022-11-16 11:43:36,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:36,766 INFO L495 AbstractCegarLoop]: Abstraction has 11692 states and 15806 transitions. [2022-11-16 11:43:36,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:43:36,766 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 15806 transitions. [2022-11-16 11:43:36,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 11:43:36,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:36,784 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] [2022-11-16 11:43:36,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:43:36,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:43:36,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:36,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1428801169, now seen corresponding path program 1 times [2022-11-16 11:43:36,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:36,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137049594] [2022-11-16 11:43:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:36,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:37,222 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 11:43:37,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:37,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137049594] [2022-11-16 11:43:37,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137049594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:37,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:37,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:43:37,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219254361] [2022-11-16 11:43:37,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:37,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:43:37,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:37,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:43:37,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:43:37,226 INFO L87 Difference]: Start difference. First operand 11692 states and 15806 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:43:49,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:49,153 INFO L93 Difference]: Finished difference Result 21035 states and 29682 transitions. [2022-11-16 11:43:49,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:43:49,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 11:43:49,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:49,272 INFO L225 Difference]: With dead ends: 21035 [2022-11-16 11:43:49,272 INFO L226 Difference]: Without dead ends: 19312 [2022-11-16 11:43:49,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:43:49,278 INFO L413 NwaCegarLoop]: 2519 mSDtfsCounter, 12634 mSDsluCounter, 10716 mSDsCounter, 0 mSdLazyCounter, 14977 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12634 SdHoareTripleChecker+Valid, 13235 SdHoareTripleChecker+Invalid, 14987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 14977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:49,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12634 Valid, 13235 Invalid, 14987 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 14977 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-16 11:43:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19312 states. [2022-11-16 11:43:50,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19312 to 11699. [2022-11-16 11:43:50,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11699 states, 11681 states have (on average 1.3537368375995207) internal successors, (15813), 11698 states have internal predecessors, (15813), 0 states have call successors, (0), 0 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 11:43:50,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 15813 transitions. [2022-11-16 11:43:50,604 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 15813 transitions. Word has length 80 [2022-11-16 11:43:50,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:50,605 INFO L495 AbstractCegarLoop]: Abstraction has 11699 states and 15813 transitions. [2022-11-16 11:43:50,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:43:50,605 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 15813 transitions. [2022-11-16 11:43:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 11:43:50,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:50,619 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] [2022-11-16 11:43:50,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:43:50,619 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:43:50,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:50,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1294381398, now seen corresponding path program 1 times [2022-11-16 11:43:50,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:50,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99506332] [2022-11-16 11:43:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:50,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:50,809 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 11:43:50,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:50,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99506332] [2022-11-16 11:43:50,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99506332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:50,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:50,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:43:50,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283939951] [2022-11-16 11:43:50,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:50,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:43:50,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:50,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:43:50,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:43:50,812 INFO L87 Difference]: Start difference. First operand 11699 states and 15813 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:43:56,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:56,123 INFO L93 Difference]: Finished difference Result 23220 states and 31550 transitions. [2022-11-16 11:43:56,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:43:56,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 11:43:56,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:56,156 INFO L225 Difference]: With dead ends: 23220 [2022-11-16 11:43:56,156 INFO L226 Difference]: Without dead ends: 15844 [2022-11-16 11:43:56,165 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 11:43:56,165 INFO L413 NwaCegarLoop]: 2093 mSDtfsCounter, 15570 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15570 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:56,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15570 Valid, 2815 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-16 11:43:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15844 states. [2022-11-16 11:43:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15844 to 15824. [2022-11-16 11:43:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15824 states, 15806 states have (on average 1.3551815766164748) internal successors, (21420), 15823 states have internal predecessors, (21420), 0 states have call successors, (0), 0 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 11:43:57,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15824 states to 15824 states and 21420 transitions. [2022-11-16 11:43:57,897 INFO L78 Accepts]: Start accepts. Automaton has 15824 states and 21420 transitions. Word has length 80 [2022-11-16 11:43:57,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:57,898 INFO L495 AbstractCegarLoop]: Abstraction has 15824 states and 21420 transitions. [2022-11-16 11:43:57,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:43:57,898 INFO L276 IsEmpty]: Start isEmpty. Operand 15824 states and 21420 transitions. [2022-11-16 11:43:57,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 11:43:57,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:57,908 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] [2022-11-16 11:43:57,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:43:57,908 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:43:57,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:57,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1633622625, now seen corresponding path program 1 times [2022-11-16 11:43:57,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:57,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533116728] [2022-11-16 11:43:57,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:57,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:58,021 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 11:43:58,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:58,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533116728] [2022-11-16 11:43:58,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533116728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:58,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:58,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:43:58,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091985291] [2022-11-16 11:43:58,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:58,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:43:58,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:58,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:43:58,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:43:58,024 INFO L87 Difference]: Start difference. First operand 15824 states and 21420 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:44:01,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:01,531 INFO L93 Difference]: Finished difference Result 31749 states and 43433 transitions. [2022-11-16 11:44:01,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:44:01,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-11-16 11:44:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:01,560 INFO L225 Difference]: With dead ends: 31749 [2022-11-16 11:44:01,560 INFO L226 Difference]: Without dead ends: 19509 [2022-11-16 11:44:01,573 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 11:44:01,574 INFO L413 NwaCegarLoop]: 3952 mSDtfsCounter, 3993 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3993 SdHoareTripleChecker+Valid, 5148 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:01,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3993 Valid, 5148 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:44:01,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19509 states. [2022-11-16 11:44:04,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19509 to 19482. [2022-11-16 11:44:04,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19482 states, 19464 states have (on average 1.3550143855322647) internal successors, (26374), 19481 states have internal predecessors, (26374), 0 states have call successors, (0), 0 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 11:44:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19482 states to 19482 states and 26374 transitions. [2022-11-16 11:44:04,092 INFO L78 Accepts]: Start accepts. Automaton has 19482 states and 26374 transitions. Word has length 81 [2022-11-16 11:44:04,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:04,092 INFO L495 AbstractCegarLoop]: Abstraction has 19482 states and 26374 transitions. [2022-11-16 11:44:04,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:44:04,092 INFO L276 IsEmpty]: Start isEmpty. Operand 19482 states and 26374 transitions. [2022-11-16 11:44:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 11:44:04,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:04,102 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] [2022-11-16 11:44:04,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:44:04,102 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:44:04,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:04,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1819290860, now seen corresponding path program 1 times [2022-11-16 11:44:04,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:04,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298821377] [2022-11-16 11:44:04,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:04,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:04,966 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 11:44:04,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:04,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298821377] [2022-11-16 11:44:04,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298821377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:04,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:04,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:44:04,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805751691] [2022-11-16 11:44:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:04,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:44:04,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:44:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:44:04,968 INFO L87 Difference]: Start difference. First operand 19482 states and 26374 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:44:22,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:22,447 INFO L93 Difference]: Finished difference Result 52425 states and 76675 transitions. [2022-11-16 11:44:22,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 11:44:22,447 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-11-16 11:44:22,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:22,510 INFO L225 Difference]: With dead ends: 52425 [2022-11-16 11:44:22,510 INFO L226 Difference]: Without dead ends: 52421 [2022-11-16 11:44:22,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 11:44:22,518 INFO L413 NwaCegarLoop]: 4063 mSDtfsCounter, 31254 mSDsluCounter, 26063 mSDsCounter, 0 mSdLazyCounter, 4804 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31254 SdHoareTripleChecker+Valid, 30126 SdHoareTripleChecker+Invalid, 4837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:22,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31254 Valid, 30126 Invalid, 4837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 4804 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 11:44:22,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52421 states. [2022-11-16 11:44:26,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52421 to 19478. [2022-11-16 11:44:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19478 states, 19461 states have (on average 1.3550177277632187) internal successors, (26370), 19477 states have internal predecessors, (26370), 0 states have call successors, (0), 0 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 11:44:26,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19478 states to 19478 states and 26370 transitions. [2022-11-16 11:44:26,051 INFO L78 Accepts]: Start accepts. Automaton has 19478 states and 26370 transitions. Word has length 81 [2022-11-16 11:44:26,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:26,051 INFO L495 AbstractCegarLoop]: Abstraction has 19478 states and 26370 transitions. [2022-11-16 11:44:26,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:44:26,051 INFO L276 IsEmpty]: Start isEmpty. Operand 19478 states and 26370 transitions. [2022-11-16 11:44:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 11:44:26,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:26,062 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] [2022-11-16 11:44:26,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:44:26,063 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:44:26,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:26,063 INFO L85 PathProgramCache]: Analyzing trace with hash 153905521, now seen corresponding path program 1 times [2022-11-16 11:44:26,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:26,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694942471] [2022-11-16 11:44:26,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:26,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:26,542 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 11:44:26,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:26,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694942471] [2022-11-16 11:44:26,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694942471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:26,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:26,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:44:26,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474176876] [2022-11-16 11:44:26,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:26,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:44:26,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:26,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:44:26,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:44:26,545 INFO L87 Difference]: Start difference. First operand 19478 states and 26370 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:44:37,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:37,088 INFO L93 Difference]: Finished difference Result 24786 states and 33764 transitions. [2022-11-16 11:44:37,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:44:37,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-11-16 11:44:37,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:37,125 INFO L225 Difference]: With dead ends: 24786 [2022-11-16 11:44:37,126 INFO L226 Difference]: Without dead ends: 24778 [2022-11-16 11:44:37,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:44:37,131 INFO L413 NwaCegarLoop]: 2082 mSDtfsCounter, 21616 mSDsluCounter, 6630 mSDsCounter, 0 mSdLazyCounter, 8733 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21616 SdHoareTripleChecker+Valid, 8712 SdHoareTripleChecker+Invalid, 8775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 8733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:37,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21616 Valid, 8712 Invalid, 8775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 8733 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-16 11:44:37,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24778 states. [2022-11-16 11:44:40,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24778 to 19478. [2022-11-16 11:44:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19478 states, 19461 states have (on average 1.354966342942295) internal successors, (26369), 19477 states have internal predecessors, (26369), 0 states have call successors, (0), 0 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 11:44:40,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19478 states to 19478 states and 26369 transitions. [2022-11-16 11:44:40,146 INFO L78 Accepts]: Start accepts. Automaton has 19478 states and 26369 transitions. Word has length 81 [2022-11-16 11:44:40,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:40,146 INFO L495 AbstractCegarLoop]: Abstraction has 19478 states and 26369 transitions. [2022-11-16 11:44:40,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:44:40,147 INFO L276 IsEmpty]: Start isEmpty. Operand 19478 states and 26369 transitions. [2022-11-16 11:44:40,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 11:44:40,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:40,156 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] [2022-11-16 11:44:40,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:44:40,156 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:44:40,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1262373862, now seen corresponding path program 1 times [2022-11-16 11:44:40,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:40,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120270976] [2022-11-16 11:44:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:40,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,730 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 11:44:40,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:40,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120270976] [2022-11-16 11:44:40,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120270976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:40,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:40,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:44:40,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695428109] [2022-11-16 11:44:40,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:40,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:44:40,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:40,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:44:40,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:44:40,732 INFO L87 Difference]: Start difference. First operand 19478 states and 26369 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 11:44:57,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:57,546 INFO L93 Difference]: Finished difference Result 35516 states and 50334 transitions. [2022-11-16 11:44:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:44:57,546 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-16 11:44:57,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:57,582 INFO L225 Difference]: With dead ends: 35516 [2022-11-16 11:44:57,582 INFO L226 Difference]: Without dead ends: 31010 [2022-11-16 11:44:57,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2022-11-16 11:44:57,588 INFO L413 NwaCegarLoop]: 2193 mSDtfsCounter, 11396 mSDsluCounter, 10904 mSDsCounter, 0 mSdLazyCounter, 12854 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11396 SdHoareTripleChecker+Valid, 13097 SdHoareTripleChecker+Invalid, 12931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 12854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:57,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11396 Valid, 13097 Invalid, 12931 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [77 Valid, 12854 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-11-16 11:44:57,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31010 states. [2022-11-16 11:45:00,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31010 to 19478. [2022-11-16 11:45:00,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19478 states, 19461 states have (on average 1.354863573300447) internal successors, (26367), 19477 states have internal predecessors, (26367), 0 states have call successors, (0), 0 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 11:45:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19478 states to 19478 states and 26367 transitions. [2022-11-16 11:45:00,885 INFO L78 Accepts]: Start accepts. Automaton has 19478 states and 26367 transitions. Word has length 82 [2022-11-16 11:45:00,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:00,886 INFO L495 AbstractCegarLoop]: Abstraction has 19478 states and 26367 transitions. [2022-11-16 11:45:00,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 11:45:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 19478 states and 26367 transitions. [2022-11-16 11:45:00,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 11:45:00,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:00,896 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] [2022-11-16 11:45:00,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:45:00,896 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:45:00,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:00,896 INFO L85 PathProgramCache]: Analyzing trace with hash 143681813, now seen corresponding path program 1 times [2022-11-16 11:45:00,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:00,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973730193] [2022-11-16 11:45:00,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:00,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,348 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 11:45:01,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:01,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973730193] [2022-11-16 11:45:01,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973730193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:01,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:01,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:45:01,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528368548] [2022-11-16 11:45:01,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:01,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:45:01,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:01,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:45:01,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:45:01,350 INFO L87 Difference]: Start difference. First operand 19478 states and 26367 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 11:45:16,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:16,900 INFO L93 Difference]: Finished difference Result 31677 states and 45078 transitions. [2022-11-16 11:45:16,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:45:16,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-16 11:45:16,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:16,937 INFO L225 Difference]: With dead ends: 31677 [2022-11-16 11:45:16,937 INFO L226 Difference]: Without dead ends: 26922 [2022-11-16 11:45:16,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:45:16,945 INFO L413 NwaCegarLoop]: 2120 mSDtfsCounter, 18259 mSDsluCounter, 10697 mSDsCounter, 0 mSdLazyCounter, 13088 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18259 SdHoareTripleChecker+Valid, 12817 SdHoareTripleChecker+Invalid, 13096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:16,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18259 Valid, 12817 Invalid, 13096 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 13088 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-16 11:45:16,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26922 states. [2022-11-16 11:45:20,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26922 to 19227. [2022-11-16 11:45:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19227 states, 19210 states have (on average 1.3562727745965644) internal successors, (26054), 19226 states have internal predecessors, (26054), 0 states have call successors, (0), 0 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 11:45:20,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19227 states to 19227 states and 26054 transitions. [2022-11-16 11:45:20,492 INFO L78 Accepts]: Start accepts. Automaton has 19227 states and 26054 transitions. Word has length 82 [2022-11-16 11:45:20,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:20,492 INFO L495 AbstractCegarLoop]: Abstraction has 19227 states and 26054 transitions. [2022-11-16 11:45:20,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 11:45:20,492 INFO L276 IsEmpty]: Start isEmpty. Operand 19227 states and 26054 transitions. [2022-11-16 11:45:20,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 11:45:20,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:20,501 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] [2022-11-16 11:45:20,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:45:20,501 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:45:20,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:20,501 INFO L85 PathProgramCache]: Analyzing trace with hash -521520380, now seen corresponding path program 1 times [2022-11-16 11:45:20,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:20,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097427589] [2022-11-16 11:45:20,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:20,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:21,241 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 11:45:21,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:21,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097427589] [2022-11-16 11:45:21,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097427589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:21,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:21,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:45:21,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005443597] [2022-11-16 11:45:21,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:21,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:45:21,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:21,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:45:21,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:45:21,243 INFO L87 Difference]: Start difference. First operand 19227 states and 26054 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 11:45:38,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:38,829 INFO L93 Difference]: Finished difference Result 49676 states and 72229 transitions. [2022-11-16 11:45:38,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:45:38,830 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-16 11:45:38,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:38,884 INFO L225 Difference]: With dead ends: 49676 [2022-11-16 11:45:38,884 INFO L226 Difference]: Without dead ends: 45065 [2022-11-16 11:45:38,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:45:38,894 INFO L413 NwaCegarLoop]: 4302 mSDtfsCounter, 27551 mSDsluCounter, 23158 mSDsCounter, 0 mSdLazyCounter, 3318 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27551 SdHoareTripleChecker+Valid, 27460 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:38,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27551 Valid, 27460 Invalid, 3346 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 3318 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-16 11:45:38,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45065 states. [2022-11-16 11:45:43,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45065 to 19195. [2022-11-16 11:45:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19195 states, 19178 states have (on average 1.3565022421524664) internal successors, (26015), 19194 states have internal predecessors, (26015), 0 states have call successors, (0), 0 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 11:45:43,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19195 states to 19195 states and 26015 transitions. [2022-11-16 11:45:43,440 INFO L78 Accepts]: Start accepts. Automaton has 19195 states and 26015 transitions. Word has length 82 [2022-11-16 11:45:43,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:43,440 INFO L495 AbstractCegarLoop]: Abstraction has 19195 states and 26015 transitions. [2022-11-16 11:45:43,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 11:45:43,441 INFO L276 IsEmpty]: Start isEmpty. Operand 19195 states and 26015 transitions. [2022-11-16 11:45:43,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 11:45:43,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:43,450 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] [2022-11-16 11:45:43,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:45:43,451 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:45:43,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:43,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1082319899, now seen corresponding path program 1 times [2022-11-16 11:45:43,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:43,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226146592] [2022-11-16 11:45:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:43,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:43,827 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 11:45:43,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:43,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226146592] [2022-11-16 11:45:43,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226146592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:43,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:43,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:45:43,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576711854] [2022-11-16 11:45:43,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:43,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:45:43,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:43,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:45:43,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:45:43,829 INFO L87 Difference]: Start difference. First operand 19195 states and 26015 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 11:46:04,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:04,538 INFO L93 Difference]: Finished difference Result 43366 states and 62167 transitions. [2022-11-16 11:46:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:46:04,539 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-16 11:46:04,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:04,582 INFO L225 Difference]: With dead ends: 43366 [2022-11-16 11:46:04,582 INFO L226 Difference]: Without dead ends: 38795 [2022-11-16 11:46:04,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:46:04,591 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 13895 mSDsluCounter, 8287 mSDsCounter, 0 mSdLazyCounter, 10645 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13895 SdHoareTripleChecker+Valid, 10558 SdHoareTripleChecker+Invalid, 10704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 10645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:04,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13895 Valid, 10558 Invalid, 10704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 10645 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-16 11:46:04,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38795 states. [2022-11-16 11:46:09,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38795 to 19126. [2022-11-16 11:46:09,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3562719137579151) internal successors, (25917), 19125 states have internal predecessors, (25917), 0 states have call successors, (0), 0 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 11:46:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25917 transitions. [2022-11-16 11:46:09,205 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25917 transitions. Word has length 82 [2022-11-16 11:46:09,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:09,205 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25917 transitions. [2022-11-16 11:46:09,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 11:46:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25917 transitions. [2022-11-16 11:46:09,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:46:09,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:09,216 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] [2022-11-16 11:46:09,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:46:09,216 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:46:09,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:09,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1453267902, now seen corresponding path program 1 times [2022-11-16 11:46:09,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:09,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107973344] [2022-11-16 11:46:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:09,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:09,592 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 11:46:09,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:09,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107973344] [2022-11-16 11:46:09,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107973344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:09,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:09,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:46:09,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596410923] [2022-11-16 11:46:09,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:09,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:46:09,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:09,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:46:09,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:46:09,598 INFO L87 Difference]: Start difference. First operand 19126 states and 25917 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:46:32,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:32,206 INFO L93 Difference]: Finished difference Result 44973 states and 64933 transitions. [2022-11-16 11:46:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:46:32,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 11:46:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:32,254 INFO L225 Difference]: With dead ends: 44973 [2022-11-16 11:46:32,255 INFO L226 Difference]: Without dead ends: 40451 [2022-11-16 11:46:32,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:46:32,265 INFO L413 NwaCegarLoop]: 2164 mSDtfsCounter, 19068 mSDsluCounter, 7214 mSDsCounter, 0 mSdLazyCounter, 9162 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19068 SdHoareTripleChecker+Valid, 9378 SdHoareTripleChecker+Invalid, 9205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 9162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:32,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19068 Valid, 9378 Invalid, 9205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 9162 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-16 11:46:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40451 states. [2022-11-16 11:46:38,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40451 to 19126. [2022-11-16 11:46:38,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3562195823957297) internal successors, (25916), 19125 states have internal predecessors, (25916), 0 states have call successors, (0), 0 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 11:46:38,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25916 transitions. [2022-11-16 11:46:38,282 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25916 transitions. Word has length 83 [2022-11-16 11:46:38,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:38,282 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25916 transitions. [2022-11-16 11:46:38,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:46:38,283 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25916 transitions. [2022-11-16 11:46:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:46:38,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:38,295 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] [2022-11-16 11:46:38,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:46:38,295 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:46:38,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:38,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1144387461, now seen corresponding path program 1 times [2022-11-16 11:46:38,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:38,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615986866] [2022-11-16 11:46:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:38,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,640 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 11:46:38,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:38,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615986866] [2022-11-16 11:46:38,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615986866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:38,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:38,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:46:38,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022641706] [2022-11-16 11:46:38,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:38,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:46:38,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:38,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:46:38,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:46:38,642 INFO L87 Difference]: Start difference. First operand 19126 states and 25916 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:46:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:59,567 INFO L93 Difference]: Finished difference Result 40699 states and 57983 transitions. [2022-11-16 11:46:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:46:59,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 11:46:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:59,608 INFO L225 Difference]: With dead ends: 40699 [2022-11-16 11:46:59,609 INFO L226 Difference]: Without dead ends: 36113 [2022-11-16 11:46:59,616 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 11:46:59,617 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 21933 mSDsluCounter, 7027 mSDsCounter, 0 mSdLazyCounter, 9567 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21933 SdHoareTripleChecker+Valid, 9298 SdHoareTripleChecker+Invalid, 9631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 9567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:59,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21933 Valid, 9298 Invalid, 9631 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 9567 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-16 11:46:59,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36113 states. [2022-11-16 11:47:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36113 to 19126. [2022-11-16 11:47:04,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3561672510335443) internal successors, (25915), 19125 states have internal predecessors, (25915), 0 states have call successors, (0), 0 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 11:47:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25915 transitions. [2022-11-16 11:47:04,839 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25915 transitions. Word has length 83 [2022-11-16 11:47:04,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:04,840 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25915 transitions. [2022-11-16 11:47:04,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:47:04,840 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25915 transitions. [2022-11-16 11:47:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:47:04,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:04,848 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] [2022-11-16 11:47:04,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:47:04,849 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:47:04,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:04,849 INFO L85 PathProgramCache]: Analyzing trace with hash -493973130, now seen corresponding path program 1 times [2022-11-16 11:47:04,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:04,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970347109] [2022-11-16 11:47:04,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:04,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:05,288 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 11:47:05,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:05,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970347109] [2022-11-16 11:47:05,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970347109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:05,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:05,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:47:05,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184019226] [2022-11-16 11:47:05,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:05,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:47:05,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:05,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:47:05,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:47:05,291 INFO L87 Difference]: Start difference. First operand 19126 states and 25915 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:47:27,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:27,542 INFO L93 Difference]: Finished difference Result 40649 states and 57923 transitions. [2022-11-16 11:47:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:47:27,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 11:47:27,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:27,582 INFO L225 Difference]: With dead ends: 40649 [2022-11-16 11:47:27,582 INFO L226 Difference]: Without dead ends: 36113 [2022-11-16 11:47:27,589 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 11:47:27,590 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 21930 mSDsluCounter, 7050 mSDsCounter, 0 mSdLazyCounter, 9563 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21930 SdHoareTripleChecker+Valid, 9309 SdHoareTripleChecker+Invalid, 9627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 9563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:27,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21930 Valid, 9309 Invalid, 9627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 9563 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-16 11:47:27,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36113 states. [2022-11-16 11:47:33,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36113 to 19126. [2022-11-16 11:47:33,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.356114919671359) internal successors, (25914), 19125 states have internal predecessors, (25914), 0 states have call successors, (0), 0 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 11:47:33,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25914 transitions. [2022-11-16 11:47:33,160 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25914 transitions. Word has length 83 [2022-11-16 11:47:33,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:33,160 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25914 transitions. [2022-11-16 11:47:33,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:47:33,160 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25914 transitions. [2022-11-16 11:47:33,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:47:33,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:33,169 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] [2022-11-16 11:47:33,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:47:33,169 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:47:33,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:33,170 INFO L85 PathProgramCache]: Analyzing trace with hash 305854051, now seen corresponding path program 1 times [2022-11-16 11:47:33,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:33,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609198445] [2022-11-16 11:47:33,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:33,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:33,522 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 11:47:33,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:33,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609198445] [2022-11-16 11:47:33,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609198445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:33,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:33,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:47:33,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356420281] [2022-11-16 11:47:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:33,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:47:33,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:47:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:47:33,526 INFO L87 Difference]: Start difference. First operand 19126 states and 25914 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:47:51,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:51,773 INFO L93 Difference]: Finished difference Result 35769 states and 50781 transitions. [2022-11-16 11:47:51,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:47:51,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 11:47:51,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:51,826 INFO L225 Difference]: With dead ends: 35769 [2022-11-16 11:47:51,826 INFO L226 Difference]: Without dead ends: 31263 [2022-11-16 11:47:51,834 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 11:47:51,835 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 21557 mSDsluCounter, 6983 mSDsCounter, 0 mSdLazyCounter, 9011 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21557 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 9053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 9011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:51,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21557 Valid, 9182 Invalid, 9053 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 9011 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-16 11:47:51,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31263 states. [2022-11-16 11:47:57,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31263 to 19126. [2022-11-16 11:47:57,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3560625883091737) internal successors, (25913), 19125 states have internal predecessors, (25913), 0 states have call successors, (0), 0 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 11:47:57,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25913 transitions. [2022-11-16 11:47:57,872 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25913 transitions. Word has length 83 [2022-11-16 11:47:57,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:57,872 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25913 transitions. [2022-11-16 11:47:57,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:47:57,872 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25913 transitions. [2022-11-16 11:47:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:47:57,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:57,880 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] [2022-11-16 11:47:57,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:47:57,880 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:47:57,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:57,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1768707315, now seen corresponding path program 1 times [2022-11-16 11:47:57,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:57,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710218659] [2022-11-16 11:47:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:57,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:58,281 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 11:47:58,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:58,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710218659] [2022-11-16 11:47:58,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710218659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:58,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:58,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:47:58,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626675579] [2022-11-16 11:47:58,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:58,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:47:58,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:58,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:47:58,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:47:58,282 INFO L87 Difference]: Start difference. First operand 19126 states and 25913 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:48:24,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:24,448 INFO L93 Difference]: Finished difference Result 43477 states and 62287 transitions. [2022-11-16 11:48:24,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:48:24,449 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 11:48:24,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:24,491 INFO L225 Difference]: With dead ends: 43477 [2022-11-16 11:48:24,491 INFO L226 Difference]: Without dead ends: 38795 [2022-11-16 11:48:24,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:48:24,498 INFO L413 NwaCegarLoop]: 2264 mSDtfsCounter, 21829 mSDsluCounter, 10332 mSDsCounter, 0 mSdLazyCounter, 12405 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21829 SdHoareTripleChecker+Valid, 12596 SdHoareTripleChecker+Invalid, 12466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 12405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:24,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21829 Valid, 12596 Invalid, 12466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 12405 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-16 11:48:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38795 states. [2022-11-16 11:48:30,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38795 to 19126. [2022-11-16 11:48:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3560102569469883) internal successors, (25912), 19125 states have internal predecessors, (25912), 0 states have call successors, (0), 0 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 11:48:30,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25912 transitions. [2022-11-16 11:48:30,936 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25912 transitions. Word has length 83 [2022-11-16 11:48:30,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:30,936 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25912 transitions. [2022-11-16 11:48:30,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:48:30,936 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25912 transitions. [2022-11-16 11:48:30,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:48:30,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:30,945 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] [2022-11-16 11:48:30,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:48:30,945 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:48:30,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:30,945 INFO L85 PathProgramCache]: Analyzing trace with hash 774058097, now seen corresponding path program 1 times [2022-11-16 11:48:30,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:30,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305529419] [2022-11-16 11:48:30,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:30,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:31,271 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 11:48:31,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:31,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305529419] [2022-11-16 11:48:31,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305529419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:31,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:31,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:48:31,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034383190] [2022-11-16 11:48:31,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:31,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:48:31,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:31,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:48:31,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:48:31,274 INFO L87 Difference]: Start difference. First operand 19126 states and 25912 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:48:50,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:50,063 INFO L93 Difference]: Finished difference Result 29188 states and 40297 transitions. [2022-11-16 11:48:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:48:50,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 11:48:50,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:50,095 INFO L225 Difference]: With dead ends: 29188 [2022-11-16 11:48:50,095 INFO L226 Difference]: Without dead ends: 29178 [2022-11-16 11:48:50,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:48:50,100 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 21308 mSDsluCounter, 6950 mSDsCounter, 0 mSdLazyCounter, 9450 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21308 SdHoareTripleChecker+Valid, 9171 SdHoareTripleChecker+Invalid, 9514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 9450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:50,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21308 Valid, 9171 Invalid, 9514 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 9450 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-16 11:48:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29178 states. [2022-11-16 11:48:56,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29178 to 19126. [2022-11-16 11:48:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3559579255848029) internal successors, (25911), 19125 states have internal predecessors, (25911), 0 states have call successors, (0), 0 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 11:48:56,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25911 transitions. [2022-11-16 11:48:56,598 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25911 transitions. Word has length 83 [2022-11-16 11:48:56,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:56,598 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25911 transitions. [2022-11-16 11:48:56,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:48:56,598 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25911 transitions. [2022-11-16 11:48:56,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:48:56,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:56,606 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] [2022-11-16 11:48:56,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:48:56,606 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:48:56,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:56,607 INFO L85 PathProgramCache]: Analyzing trace with hash 565746600, now seen corresponding path program 1 times [2022-11-16 11:48:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:56,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221330359] [2022-11-16 11:48:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:56,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:57,273 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 11:48:57,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:57,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221330359] [2022-11-16 11:48:57,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221330359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:57,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:57,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:48:57,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812932295] [2022-11-16 11:48:57,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:57,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:48:57,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:57,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:48:57,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:48:57,275 INFO L87 Difference]: Start difference. First operand 19126 states and 25911 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:49:14,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:49:14,709 INFO L93 Difference]: Finished difference Result 34198 states and 49190 transitions. [2022-11-16 11:49:14,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:49:14,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 11:49:14,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:49:14,740 INFO L225 Difference]: With dead ends: 34198 [2022-11-16 11:49:14,740 INFO L226 Difference]: Without dead ends: 29624 [2022-11-16 11:49:14,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:49:14,745 INFO L413 NwaCegarLoop]: 4067 mSDtfsCounter, 20727 mSDsluCounter, 16955 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20727 SdHoareTripleChecker+Valid, 21022 SdHoareTripleChecker+Invalid, 2755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:49:14,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20727 Valid, 21022 Invalid, 2755 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 11:49:14,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29624 states. [2022-11-16 11:49:21,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29624 to 19050. [2022-11-16 11:49:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19050 states, 19034 states have (on average 1.3558369234002312) internal successors, (25807), 19049 states have internal predecessors, (25807), 0 states have call successors, (0), 0 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 11:49:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19050 states to 19050 states and 25807 transitions. [2022-11-16 11:49:21,761 INFO L78 Accepts]: Start accepts. Automaton has 19050 states and 25807 transitions. Word has length 83 [2022-11-16 11:49:21,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:49:21,762 INFO L495 AbstractCegarLoop]: Abstraction has 19050 states and 25807 transitions. [2022-11-16 11:49:21,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:49:21,762 INFO L276 IsEmpty]: Start isEmpty. Operand 19050 states and 25807 transitions. [2022-11-16 11:49:21,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 11:49:21,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:49:21,770 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 11:49:21,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:49:21,771 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:49:21,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:21,771 INFO L85 PathProgramCache]: Analyzing trace with hash -107464423, now seen corresponding path program 1 times [2022-11-16 11:49:21,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:21,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414818962] [2022-11-16 11:49:21,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:21,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:21,856 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 11:49:21,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:21,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414818962] [2022-11-16 11:49:21,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414818962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:21,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:21,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:49:21,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221830864] [2022-11-16 11:49:21,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:21,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:49:21,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:21,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:49:21,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:49:21,859 INFO L87 Difference]: Start difference. First operand 19050 states and 25807 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:49:31,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:49:31,124 INFO L93 Difference]: Finished difference Result 26177 states and 36852 transitions. [2022-11-16 11:49:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:49:31,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:49:31,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:49:31,144 INFO L225 Difference]: With dead ends: 26177 [2022-11-16 11:49:31,144 INFO L226 Difference]: Without dead ends: 19508 [2022-11-16 11:49:31,150 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 11:49:31,151 INFO L413 NwaCegarLoop]: 4133 mSDtfsCounter, 2546 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2546 SdHoareTripleChecker+Valid, 5660 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:49:31,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2546 Valid, 5660 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:49:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19508 states. [2022-11-16 11:49:38,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19508 to 15684. [2022-11-16 11:49:38,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15684 states, 15668 states have (on average 1.3785422517232575) internal successors, (21599), 15683 states have internal predecessors, (21599), 0 states have call successors, (0), 0 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 11:49:38,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15684 states to 15684 states and 21599 transitions. [2022-11-16 11:49:38,693 INFO L78 Accepts]: Start accepts. Automaton has 15684 states and 21599 transitions. Word has length 84 [2022-11-16 11:49:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:49:38,693 INFO L495 AbstractCegarLoop]: Abstraction has 15684 states and 21599 transitions. [2022-11-16 11:49:38,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:49:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 15684 states and 21599 transitions. [2022-11-16 11:49:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 11:49:38,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:49:38,701 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 11:49:38,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:49:38,701 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:49:38,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:38,701 INFO L85 PathProgramCache]: Analyzing trace with hash -951518663, now seen corresponding path program 1 times [2022-11-16 11:49:38,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:38,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628742134] [2022-11-16 11:49:38,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:38,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:38,784 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 11:49:38,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:38,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628742134] [2022-11-16 11:49:38,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628742134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:38,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:38,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:49:38,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499919628] [2022-11-16 11:49:38,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:38,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:49:38,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:38,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:49:38,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:49:38,787 INFO L87 Difference]: Start difference. First operand 15684 states and 21599 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:49:49,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:49:49,834 INFO L93 Difference]: Finished difference Result 26322 states and 37990 transitions. [2022-11-16 11:49:49,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:49:49,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:49:49,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:49:49,854 INFO L225 Difference]: With dead ends: 26322 [2022-11-16 11:49:49,854 INFO L226 Difference]: Without dead ends: 19633 [2022-11-16 11:49:49,858 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 11:49:49,859 INFO L413 NwaCegarLoop]: 4044 mSDtfsCounter, 1774 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 6348 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:49:49,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 6348 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:49:49,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19633 states. [2022-11-16 11:50:00,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19633 to 19631. [2022-11-16 11:50:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19631 states, 19615 states have (on average 1.4139689013510068) internal successors, (27735), 19630 states have internal predecessors, (27735), 0 states have call successors, (0), 0 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 11:50:00,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19631 states to 19631 states and 27735 transitions. [2022-11-16 11:50:00,384 INFO L78 Accepts]: Start accepts. Automaton has 19631 states and 27735 transitions. Word has length 84 [2022-11-16 11:50:00,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:50:00,384 INFO L495 AbstractCegarLoop]: Abstraction has 19631 states and 27735 transitions. [2022-11-16 11:50:00,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:50:00,384 INFO L276 IsEmpty]: Start isEmpty. Operand 19631 states and 27735 transitions. [2022-11-16 11:50:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 11:50:00,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:50:00,391 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 11:50:00,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:50:00,391 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:50:00,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:00,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1226615281, now seen corresponding path program 1 times [2022-11-16 11:50:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:00,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211112336] [2022-11-16 11:50:00,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:00,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:00,465 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 11:50:00,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:00,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211112336] [2022-11-16 11:50:00,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211112336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:50:00,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:50:00,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:50:00,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421316350] [2022-11-16 11:50:00,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:50:00,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:50:00,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:00,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:50:00,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:50:00,468 INFO L87 Difference]: Start difference. First operand 19631 states and 27735 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:50:18,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:50:18,766 INFO L93 Difference]: Finished difference Result 44160 states and 64079 transitions. [2022-11-16 11:50:18,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:50:18,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:50:18,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:50:18,801 INFO L225 Difference]: With dead ends: 44160 [2022-11-16 11:50:18,801 INFO L226 Difference]: Without dead ends: 32085 [2022-11-16 11:50:18,813 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 11:50:18,813 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 2463 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2463 SdHoareTripleChecker+Valid, 7503 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:50:18,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2463 Valid, 7503 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:50:18,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32085 states. [2022-11-16 11:50:38,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32085 to 32069. [2022-11-16 11:50:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32069 states, 32053 states have (on average 1.4241724643559106) internal successors, (45649), 32068 states have internal predecessors, (45649), 0 states have call successors, (0), 0 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 11:50:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32069 states to 32069 states and 45649 transitions. [2022-11-16 11:50:38,188 INFO L78 Accepts]: Start accepts. Automaton has 32069 states and 45649 transitions. Word has length 84 [2022-11-16 11:50:38,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:50:38,188 INFO L495 AbstractCegarLoop]: Abstraction has 32069 states and 45649 transitions. [2022-11-16 11:50:38,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:50:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 32069 states and 45649 transitions. [2022-11-16 11:50:38,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 11:50:38,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:50:38,202 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 11:50:38,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:50:38,203 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:50:38,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:38,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1452311755, now seen corresponding path program 1 times [2022-11-16 11:50:38,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:38,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522714745] [2022-11-16 11:50:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:38,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:38,296 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 11:50:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:38,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522714745] [2022-11-16 11:50:38,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522714745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:50:38,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:50:38,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:50:38,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255304656] [2022-11-16 11:50:38,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:50:38,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:50:38,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:38,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:50:38,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:50:38,299 INFO L87 Difference]: Start difference. First operand 32069 states and 45649 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:51:01,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:01,769 INFO L93 Difference]: Finished difference Result 60445 states and 87697 transitions. [2022-11-16 11:51:01,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:01,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:51:01,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:01,814 INFO L225 Difference]: With dead ends: 60445 [2022-11-16 11:51:01,814 INFO L226 Difference]: Without dead ends: 34718 [2022-11-16 11:51:01,827 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 11:51:01,828 INFO L413 NwaCegarLoop]: 2967 mSDtfsCounter, 2940 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2940 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:01,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2940 Valid, 3856 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:01,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34718 states. [2022-11-16 11:51:20,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34718 to 28119. [2022-11-16 11:51:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28119 states, 28107 states have (on average 1.4388586473120575) internal successors, (40442), 28118 states have internal predecessors, (40442), 0 states have call successors, (0), 0 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 11:51:20,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28119 states to 28119 states and 40442 transitions. [2022-11-16 11:51:20,140 INFO L78 Accepts]: Start accepts. Automaton has 28119 states and 40442 transitions. Word has length 84 [2022-11-16 11:51:20,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:20,141 INFO L495 AbstractCegarLoop]: Abstraction has 28119 states and 40442 transitions. [2022-11-16 11:51:20,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:51:20,141 INFO L276 IsEmpty]: Start isEmpty. Operand 28119 states and 40442 transitions. [2022-11-16 11:51:20,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 11:51:20,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:20,149 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 11:51:20,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:51:20,150 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-16 11:51:20,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:20,150 INFO L85 PathProgramCache]: Analyzing trace with hash -975845154, now seen corresponding path program 1 times [2022-11-16 11:51:20,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:20,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724284019] [2022-11-16 11:51:20,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:20,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:20,219 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 11:51:20,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:20,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724284019] [2022-11-16 11:51:20,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724284019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:20,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:20,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:51:20,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488924501] [2022-11-16 11:51:20,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:20,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:51:20,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:20,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:51:20,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:20,222 INFO L87 Difference]: Start difference. First operand 28119 states and 40442 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:51:53,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:53,469 INFO L93 Difference]: Finished difference Result 68973 states and 101189 transitions. [2022-11-16 11:51:53,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:53,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 11:51:53,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:53,536 INFO L225 Difference]: With dead ends: 68973 [2022-11-16 11:51:53,536 INFO L226 Difference]: Without dead ends: 47704 [2022-11-16 11:51:53,551 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 11:51:53,552 INFO L413 NwaCegarLoop]: 3214 mSDtfsCounter, 1937 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 5632 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:53,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 5632 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:53,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47704 states.