./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY --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 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:32:23,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:32:23,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:32:23,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:32:23,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:32:23,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:32:23,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:32:23,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:32:23,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:32:23,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:32:23,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:32:23,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:32:23,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:32:23,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:32:23,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:32:23,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:32:23,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:32:23,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:32:23,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:32:23,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:32:23,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:32:23,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:32:23,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:32:23,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:32:23,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:32:23,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:32:23,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:32:23,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:32:23,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:32:23,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:32:23,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:32:23,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:32:23,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:32:23,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:32:23,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:32:23,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:32:23,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:32:23,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:32:23,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:32:23,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:32:23,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:32:23,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:32:23,329 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:32:23,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:32:23,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:32:23,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:32:23,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:32:23,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:32:23,338 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:32:23,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:32:23,338 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:32:23,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:32:23,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:32:23,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:32:23,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:32:23,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:32:23,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:32:23,341 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:32:23,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:32:23,341 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:32:23,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:32:23,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:32:23,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:32:23,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:32:23,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:32:23,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:32:23,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:32:23,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:32:23,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:32:23,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:32:23,344 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:32:23,345 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:32:23,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:32:23,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:32:23,346 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_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 [2021-11-07 07:32:23,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:32:23,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:32:23,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:32:23,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:32:23,708 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:32:23,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-11-07 07:32:23,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/data/8ad7d9c5e/29d796f4880a4b1bba0fadd479f1a4a6/FLAG5d23e81c4 [2021-11-07 07:32:24,538 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:32:24,539 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-11-07 07:32:24,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/data/8ad7d9c5e/29d796f4880a4b1bba0fadd479f1a4a6/FLAG5d23e81c4 [2021-11-07 07:32:24,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/data/8ad7d9c5e/29d796f4880a4b1bba0fadd479f1a4a6 [2021-11-07 07:32:24,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:32:24,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:32:24,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:32:24,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:32:24,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:32:24,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:32:24" (1/1) ... [2021-11-07 07:32:24,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19489e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:24, skipping insertion in model container [2021-11-07 07:32:24,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:32:24" (1/1) ... [2021-11-07 07:32:24,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:32:24,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:32:25,368 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2021-11-07 07:32:25,447 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2021-11-07 07:32:25,481 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2021-11-07 07:32:25,498 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2021-11-07 07:32:25,532 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2021-11-07 07:32:25,640 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2021-11-07 07:32:25,683 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2021-11-07 07:32:25,703 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2021-11-07 07:32:25,728 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2021-11-07 07:32:25,745 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2021-11-07 07:32:25,763 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2021-11-07 07:32:25,804 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2021-11-07 07:32:25,821 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2021-11-07 07:32:25,840 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2021-11-07 07:32:25,855 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2021-11-07 07:32:25,869 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2021-11-07 07:32:25,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:32:25,955 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:32:26,133 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2021-11-07 07:32:26,181 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2021-11-07 07:32:26,204 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2021-11-07 07:32:26,217 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2021-11-07 07:32:26,229 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2021-11-07 07:32:26,310 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2021-11-07 07:32:26,334 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2021-11-07 07:32:26,347 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2021-11-07 07:32:26,360 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2021-11-07 07:32:26,373 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2021-11-07 07:32:26,385 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2021-11-07 07:32:26,397 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2021-11-07 07:32:26,410 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2021-11-07 07:32:26,424 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2021-11-07 07:32:26,437 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2021-11-07 07:32:26,450 WARN L228 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_80a45377-9816-4612-a24d-a633c62d5e90/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2021-11-07 07:32:26,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:32:26,512 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:32:26,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26 WrapperNode [2021-11-07 07:32:26,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:32:26,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:32:26,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:32:26,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:32:26,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:32:26,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:32:26,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:32:26,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:32:26,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:32:26,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:32:26,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:32:26,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:32:26,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (1/1) ... [2021-11-07 07:32:26,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:32:27,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:32:27,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:32:27,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a45377-9816-4612-a24d-a633c62d5e90/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:32:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:32:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:32:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:32:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:32:30,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:32:30,572 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 07:32:30,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:32:30 BoogieIcfgContainer [2021-11-07 07:32:30,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:32:30,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:32:30,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:32:30,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:32:30,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:32:24" (1/3) ... [2021-11-07 07:32:30,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649f37c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:32:30, skipping insertion in model container [2021-11-07 07:32:30,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:32:26" (2/3) ... [2021-11-07 07:32:30,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649f37c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:32:30, skipping insertion in model container [2021-11-07 07:32:30,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:32:30" (3/3) ... [2021-11-07 07:32:30,587 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-11-07 07:32:30,593 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:32:30,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-07 07:32:30,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:32:30,666 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:32:30,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-07 07:32:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:30,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 07:32:30,740 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:30,741 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:30,742 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:30,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:30,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1494001524, now seen corresponding path program 1 times [2021-11-07 07:32:30,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:30,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230206459] [2021-11-07 07:32:30,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:30,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:31,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:31,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:31,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230206459] [2021-11-07 07:32:31,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230206459] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:31,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:31,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:32:31,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279460035] [2021-11-07 07:32:31,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:32:31,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:31,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:32:31,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:32:31,405 INFO L87 Difference]: Start difference. First operand has 1193 states, 1176 states have (on average 1.7704081632653061) internal successors, (2082), 1192 states have internal predecessors, (2082), 0 states have call successors, (0), 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 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:32,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:32,664 INFO L93 Difference]: Finished difference Result 1628 states and 2780 transitions. [2021-11-07 07:32:32,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:32:32,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 07:32:32,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:32,690 INFO L225 Difference]: With dead ends: 1628 [2021-11-07 07:32:32,691 INFO L226 Difference]: Without dead ends: 1062 [2021-11-07 07:32:32,696 INFO L786 BasicCegarLoop]: 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 [2021-11-07 07:32:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2021-11-07 07:32:32,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1062. [2021-11-07 07:32:32,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1046 states have (on average 1.282982791586998) internal successors, (1342), 1061 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:32,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1342 transitions. [2021-11-07 07:32:32,799 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1342 transitions. Word has length 73 [2021-11-07 07:32:32,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:32,799 INFO L470 AbstractCegarLoop]: Abstraction has 1062 states and 1342 transitions. [2021-11-07 07:32:32,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:32,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1342 transitions. [2021-11-07 07:32:32,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 07:32:32,804 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:32,804 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:32,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:32:32,805 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:32,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:32,805 INFO L85 PathProgramCache]: Analyzing trace with hash 730465380, now seen corresponding path program 1 times [2021-11-07 07:32:32,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:32,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163492508] [2021-11-07 07:32:32,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:32,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:33,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:33,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:33,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163492508] [2021-11-07 07:32:33,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163492508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:33,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:33,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:32:33,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131966462] [2021-11-07 07:32:33,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:32:33,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:33,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:32:33,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:32:33,052 INFO L87 Difference]: Start difference. First operand 1062 states and 1342 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:33,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:33,694 INFO L93 Difference]: Finished difference Result 1401 states and 1758 transitions. [2021-11-07 07:32:33,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:32:33,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 07:32:33,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:33,701 INFO L225 Difference]: With dead ends: 1401 [2021-11-07 07:32:33,702 INFO L226 Difference]: Without dead ends: 887 [2021-11-07 07:32:33,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:32:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2021-11-07 07:32:33,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 821. [2021-11-07 07:32:33,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 805 states have (on average 1.3093167701863353) internal successors, (1054), 820 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:33,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1054 transitions. [2021-11-07 07:32:33,752 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1054 transitions. Word has length 73 [2021-11-07 07:32:33,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:33,753 INFO L470 AbstractCegarLoop]: Abstraction has 821 states and 1054 transitions. [2021-11-07 07:32:33,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:33,753 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1054 transitions. [2021-11-07 07:32:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 07:32:33,756 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:33,756 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:33,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:32:33,757 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:33,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:33,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1583086451, now seen corresponding path program 1 times [2021-11-07 07:32:33,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:33,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864232426] [2021-11-07 07:32:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:33,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:33,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:33,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864232426] [2021-11-07 07:32:33,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864232426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:33,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:33,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:32:33,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767561850] [2021-11-07 07:32:33,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:32:33,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:33,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:32:33,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:32:33,859 INFO L87 Difference]: Start difference. First operand 821 states and 1054 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:34,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:34,233 INFO L93 Difference]: Finished difference Result 1069 states and 1386 transitions. [2021-11-07 07:32:34,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:32:34,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 07:32:34,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:34,238 INFO L225 Difference]: With dead ends: 1069 [2021-11-07 07:32:34,238 INFO L226 Difference]: Without dead ends: 657 [2021-11-07 07:32:34,239 INFO L786 BasicCegarLoop]: 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 [2021-11-07 07:32:34,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-11-07 07:32:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2021-11-07 07:32:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 641 states have (on average 1.3229329173166926) internal successors, (848), 656 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:34,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 848 transitions. [2021-11-07 07:32:34,276 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 848 transitions. Word has length 73 [2021-11-07 07:32:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:34,276 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 848 transitions. [2021-11-07 07:32:34,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:34,277 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 848 transitions. [2021-11-07 07:32:34,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 07:32:34,278 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:34,279 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:34,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:32:34,279 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:34,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash 361601533, now seen corresponding path program 1 times [2021-11-07 07:32:34,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:34,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116613253] [2021-11-07 07:32:34,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:34,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:34,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:34,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116613253] [2021-11-07 07:32:34,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116613253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:34,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:34,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:32:34,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859893238] [2021-11-07 07:32:34,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:32:34,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:34,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:32:34,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:32:34,363 INFO L87 Difference]: Start difference. First operand 657 states and 848 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:34,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:34,703 INFO L93 Difference]: Finished difference Result 993 states and 1302 transitions. [2021-11-07 07:32:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:32:34,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-07 07:32:34,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:34,708 INFO L225 Difference]: With dead ends: 993 [2021-11-07 07:32:34,708 INFO L226 Difference]: Without dead ends: 602 [2021-11-07 07:32:34,710 INFO L786 BasicCegarLoop]: 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 [2021-11-07 07:32:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-11-07 07:32:34,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2021-11-07 07:32:34,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 586 states have (on average 1.3361774744027304) internal successors, (783), 601 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 783 transitions. [2021-11-07 07:32:34,764 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 783 transitions. Word has length 75 [2021-11-07 07:32:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:34,764 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 783 transitions. [2021-11-07 07:32:34,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 783 transitions. [2021-11-07 07:32:34,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 07:32:34,770 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:34,771 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:34,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:32:34,771 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:34,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:34,772 INFO L85 PathProgramCache]: Analyzing trace with hash 426814868, now seen corresponding path program 1 times [2021-11-07 07:32:34,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:34,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145566421] [2021-11-07 07:32:34,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:34,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:34,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:34,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145566421] [2021-11-07 07:32:34,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145566421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:34,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:34,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:32:34,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993489647] [2021-11-07 07:32:34,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:32:34,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:34,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:32:34,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:32:34,931 INFO L87 Difference]: Start difference. First operand 602 states and 783 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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) [2021-11-07 07:32:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:35,340 INFO L93 Difference]: Finished difference Result 1238 states and 1635 transitions. [2021-11-07 07:32:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:32:35,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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 [2021-11-07 07:32:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:35,347 INFO L225 Difference]: With dead ends: 1238 [2021-11-07 07:32:35,347 INFO L226 Difference]: Without dead ends: 890 [2021-11-07 07:32:35,348 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:32:35,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2021-11-07 07:32:35,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 843. [2021-11-07 07:32:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 827 states have (on average 1.3748488512696493) internal successors, (1137), 842 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1137 transitions. [2021-11-07 07:32:35,408 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1137 transitions. Word has length 77 [2021-11-07 07:32:35,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:35,409 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1137 transitions. [2021-11-07 07:32:35,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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) [2021-11-07 07:32:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1137 transitions. [2021-11-07 07:32:35,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:32:35,411 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:35,411 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:35,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 07:32:35,412 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:35,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:35,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1748744325, now seen corresponding path program 1 times [2021-11-07 07:32:35,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:35,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304397417] [2021-11-07 07:32:35,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:35,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:35,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:35,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:35,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304397417] [2021-11-07 07:32:35,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304397417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:35,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:35,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 07:32:35,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621991148] [2021-11-07 07:32:35,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:32:35,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:35,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:32:35,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:32:35,569 INFO L87 Difference]: Start difference. First operand 843 states and 1137 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2021-11-07 07:32:36,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:36,327 INFO L93 Difference]: Finished difference Result 1782 states and 2399 transitions. [2021-11-07 07:32:36,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 07:32:36,328 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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 [2021-11-07 07:32:36,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:36,338 INFO L225 Difference]: With dead ends: 1782 [2021-11-07 07:32:36,338 INFO L226 Difference]: Without dead ends: 1254 [2021-11-07 07:32:36,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-11-07 07:32:36,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2021-11-07 07:32:36,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 843. [2021-11-07 07:32:36,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 827 states have (on average 1.373639661426844) internal successors, (1136), 842 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:36,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1136 transitions. [2021-11-07 07:32:36,419 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1136 transitions. Word has length 79 [2021-11-07 07:32:36,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:36,420 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1136 transitions. [2021-11-07 07:32:36,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2021-11-07 07:32:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1136 transitions. [2021-11-07 07:32:36,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:32:36,428 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:36,429 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:36,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 07:32:36,429 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:36,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash -883245509, now seen corresponding path program 1 times [2021-11-07 07:32:36,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:36,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123276069] [2021-11-07 07:32:36,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:36,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:36,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:36,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123276069] [2021-11-07 07:32:36,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123276069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:36,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:36,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:36,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311273956] [2021-11-07 07:32:36,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:36,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:36,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:36,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:36,657 INFO L87 Difference]: Start difference. First operand 843 states and 1136 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-07 07:32:37,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:37,885 INFO L93 Difference]: Finished difference Result 2136 states and 2990 transitions. [2021-11-07 07:32:37,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:32:37,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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 [2021-11-07 07:32:37,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:37,896 INFO L225 Difference]: With dead ends: 2136 [2021-11-07 07:32:37,896 INFO L226 Difference]: Without dead ends: 1872 [2021-11-07 07:32:37,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:32:37,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2021-11-07 07:32:37,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 843. [2021-11-07 07:32:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 827 states have (on average 1.3724304715840387) internal successors, (1135), 842 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1135 transitions. [2021-11-07 07:32:37,985 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1135 transitions. Word has length 79 [2021-11-07 07:32:37,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:37,986 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1135 transitions. [2021-11-07 07:32:37,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-07 07:32:37,986 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1135 transitions. [2021-11-07 07:32:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:32:37,988 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:37,989 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:37,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 07:32:37,989 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:37,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:37,990 INFO L85 PathProgramCache]: Analyzing trace with hash -876086789, now seen corresponding path program 1 times [2021-11-07 07:32:37,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:37,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754290225] [2021-11-07 07:32:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:37,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:38,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:38,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754290225] [2021-11-07 07:32:38,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754290225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:38,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:38,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:38,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052905743] [2021-11-07 07:32:38,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:38,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:38,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:38,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:38,147 INFO L87 Difference]: Start difference. First operand 843 states and 1135 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-07 07:32:39,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:39,406 INFO L93 Difference]: Finished difference Result 2148 states and 3005 transitions. [2021-11-07 07:32:39,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:32:39,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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 [2021-11-07 07:32:39,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:39,418 INFO L225 Difference]: With dead ends: 2148 [2021-11-07 07:32:39,418 INFO L226 Difference]: Without dead ends: 1872 [2021-11-07 07:32:39,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:32:39,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2021-11-07 07:32:39,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 843. [2021-11-07 07:32:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 827 states have (on average 1.370012091898428) internal successors, (1133), 842 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:39,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1133 transitions. [2021-11-07 07:32:39,508 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1133 transitions. Word has length 79 [2021-11-07 07:32:39,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:39,509 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1133 transitions. [2021-11-07 07:32:39,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-07 07:32:39,510 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1133 transitions. [2021-11-07 07:32:39,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 07:32:39,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:39,512 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:39,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 07:32:39,512 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:39,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1198050725, now seen corresponding path program 1 times [2021-11-07 07:32:39,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:39,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692118410] [2021-11-07 07:32:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:39,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:39,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:39,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692118410] [2021-11-07 07:32:39,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692118410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:39,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:39,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:39,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526324173] [2021-11-07 07:32:39,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:39,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:39,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:39,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:39,667 INFO L87 Difference]: Start difference. First operand 843 states and 1133 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-07 07:32:41,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:41,022 INFO L93 Difference]: Finished difference Result 2232 states and 3120 transitions. [2021-11-07 07:32:41,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:32:41,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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 [2021-11-07 07:32:41,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:41,036 INFO L225 Difference]: With dead ends: 2232 [2021-11-07 07:32:41,037 INFO L226 Difference]: Without dead ends: 1888 [2021-11-07 07:32:41,039 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:32:41,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2021-11-07 07:32:41,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 843. [2021-11-07 07:32:41,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 827 states have (on average 1.3688029020556227) internal successors, (1132), 842 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1132 transitions. [2021-11-07 07:32:41,182 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1132 transitions. Word has length 79 [2021-11-07 07:32:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:41,183 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1132 transitions. [2021-11-07 07:32:41,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2021-11-07 07:32:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1132 transitions. [2021-11-07 07:32:41,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 07:32:41,185 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:41,186 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:41,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 07:32:41,186 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:41,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:41,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1148997540, now seen corresponding path program 1 times [2021-11-07 07:32:41,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:41,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833348218] [2021-11-07 07:32:41,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:41,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:41,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:41,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833348218] [2021-11-07 07:32:41,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833348218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:41,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:41,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:41,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666736641] [2021-11-07 07:32:41,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:41,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:41,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:41,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:41,399 INFO L87 Difference]: Start difference. First operand 843 states and 1132 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 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) [2021-11-07 07:32:42,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:42,677 INFO L93 Difference]: Finished difference Result 1687 states and 2344 transitions. [2021-11-07 07:32:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:32:42,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 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 [2021-11-07 07:32:42,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:42,686 INFO L225 Difference]: With dead ends: 1687 [2021-11-07 07:32:42,686 INFO L226 Difference]: Without dead ends: 1400 [2021-11-07 07:32:42,688 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:32:42,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2021-11-07 07:32:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 843. [2021-11-07 07:32:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 827 states have (on average 1.3675937122128174) internal successors, (1131), 842 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:42,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1131 transitions. [2021-11-07 07:32:42,797 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1131 transitions. Word has length 80 [2021-11-07 07:32:42,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:42,798 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1131 transitions. [2021-11-07 07:32:42,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 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) [2021-11-07 07:32:42,798 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1131 transitions. [2021-11-07 07:32:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 07:32:42,800 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:42,800 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:42,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 07:32:42,801 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:42,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash -178984548, now seen corresponding path program 1 times [2021-11-07 07:32:42,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:42,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358845573] [2021-11-07 07:32:42,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:42,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:42,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:42,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358845573] [2021-11-07 07:32:42,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358845573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:42,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:42,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:42,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276503059] [2021-11-07 07:32:42,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:42,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:42,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:42,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:42,950 INFO L87 Difference]: Start difference. First operand 843 states and 1131 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 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) [2021-11-07 07:32:44,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:44,160 INFO L93 Difference]: Finished difference Result 2132 states and 2981 transitions. [2021-11-07 07:32:44,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:32:44,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 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 [2021-11-07 07:32:44,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:44,172 INFO L225 Difference]: With dead ends: 2132 [2021-11-07 07:32:44,172 INFO L226 Difference]: Without dead ends: 1872 [2021-11-07 07:32:44,174 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:32:44,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2021-11-07 07:32:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 843. [2021-11-07 07:32:44,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 827 states have (on average 1.3663845223700122) internal successors, (1130), 842 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1130 transitions. [2021-11-07 07:32:44,286 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1130 transitions. Word has length 80 [2021-11-07 07:32:44,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:44,286 INFO L470 AbstractCegarLoop]: Abstraction has 843 states and 1130 transitions. [2021-11-07 07:32:44,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 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) [2021-11-07 07:32:44,287 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1130 transitions. [2021-11-07 07:32:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 07:32:44,288 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:44,289 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:44,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 07:32:44,289 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:44,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:44,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1495415488, now seen corresponding path program 1 times [2021-11-07 07:32:44,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:44,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682634419] [2021-11-07 07:32:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:44,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:44,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:44,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682634419] [2021-11-07 07:32:44,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682634419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:44,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:44,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 07:32:44,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62404274] [2021-11-07 07:32:44,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 07:32:44,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:44,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:32:44,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:32:44,548 INFO L87 Difference]: Start difference. First operand 843 states and 1130 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 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) [2021-11-07 07:32:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:46,402 INFO L93 Difference]: Finished difference Result 2952 states and 4132 transitions. [2021-11-07 07:32:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 07:32:46,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 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 [2021-11-07 07:32:46,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:46,416 INFO L225 Difference]: With dead ends: 2952 [2021-11-07 07:32:46,416 INFO L226 Difference]: Without dead ends: 2591 [2021-11-07 07:32:46,418 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:32:46,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2021-11-07 07:32:46,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 848. [2021-11-07 07:32:46,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 832 states have (on average 1.3641826923076923) internal successors, (1135), 847 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1135 transitions. [2021-11-07 07:32:46,550 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1135 transitions. Word has length 81 [2021-11-07 07:32:46,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:46,550 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1135 transitions. [2021-11-07 07:32:46,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 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) [2021-11-07 07:32:46,551 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1135 transitions. [2021-11-07 07:32:46,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 07:32:46,553 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:46,553 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:46,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 07:32:46,553 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:46,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:46,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1996016320, now seen corresponding path program 1 times [2021-11-07 07:32:46,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:46,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053178436] [2021-11-07 07:32:46,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:46,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:46,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:46,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053178436] [2021-11-07 07:32:46,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053178436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:46,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:46,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:46,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410388938] [2021-11-07 07:32:46,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:46,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:46,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:46,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:46,718 INFO L87 Difference]: Start difference. First operand 848 states and 1135 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) [2021-11-07 07:32:47,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:47,795 INFO L93 Difference]: Finished difference Result 1693 states and 2344 transitions. [2021-11-07 07:32:47,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:32:47,795 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 [2021-11-07 07:32:47,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:47,803 INFO L225 Difference]: With dead ends: 1693 [2021-11-07 07:32:47,803 INFO L226 Difference]: Without dead ends: 1405 [2021-11-07 07:32:47,804 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:32:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2021-11-07 07:32:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 848. [2021-11-07 07:32:47,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 832 states have (on average 1.3629807692307692) internal successors, (1134), 847 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:47,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1134 transitions. [2021-11-07 07:32:47,921 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1134 transitions. Word has length 81 [2021-11-07 07:32:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:47,921 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1134 transitions. [2021-11-07 07:32:47,921 INFO L471 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) [2021-11-07 07:32:47,921 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1134 transitions. [2021-11-07 07:32:47,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 07:32:47,923 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:47,923 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:47,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 07:32:47,924 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:47,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:47,924 INFO L85 PathProgramCache]: Analyzing trace with hash -583258688, now seen corresponding path program 1 times [2021-11-07 07:32:47,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:47,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935983651] [2021-11-07 07:32:47,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:47,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:48,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:48,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:48,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935983651] [2021-11-07 07:32:48,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935983651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:48,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:48,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:48,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339544767] [2021-11-07 07:32:48,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:48,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:48,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:48,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:48,070 INFO L87 Difference]: Start difference. First operand 848 states and 1134 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) [2021-11-07 07:32:49,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:49,161 INFO L93 Difference]: Finished difference Result 2141 states and 2987 transitions. [2021-11-07 07:32:49,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:32:49,161 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 [2021-11-07 07:32:49,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:49,170 INFO L225 Difference]: With dead ends: 2141 [2021-11-07 07:32:49,171 INFO L226 Difference]: Without dead ends: 1877 [2021-11-07 07:32:49,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:32:49,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2021-11-07 07:32:49,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 848. [2021-11-07 07:32:49,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 832 states have (on average 1.3617788461538463) internal successors, (1133), 847 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1133 transitions. [2021-11-07 07:32:49,308 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1133 transitions. Word has length 81 [2021-11-07 07:32:49,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:49,308 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1133 transitions. [2021-11-07 07:32:49,311 INFO L471 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) [2021-11-07 07:32:49,311 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1133 transitions. [2021-11-07 07:32:49,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 07:32:49,314 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:49,314 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:49,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 07:32:49,314 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:49,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:49,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1372385248, now seen corresponding path program 1 times [2021-11-07 07:32:49,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:49,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438952641] [2021-11-07 07:32:49,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:49,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:49,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:49,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438952641] [2021-11-07 07:32:49,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438952641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:49,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:49,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 07:32:49,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617656408] [2021-11-07 07:32:49,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:32:49,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:32:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:32:49,560 INFO L87 Difference]: Start difference. First operand 848 states and 1133 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 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) [2021-11-07 07:32:52,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:52,402 INFO L93 Difference]: Finished difference Result 2799 states and 3942 transitions. [2021-11-07 07:32:52,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:32:52,403 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 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 [2021-11-07 07:32:52,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:52,412 INFO L225 Difference]: With dead ends: 2799 [2021-11-07 07:32:52,413 INFO L226 Difference]: Without dead ends: 2502 [2021-11-07 07:32:52,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 07:32:52,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2021-11-07 07:32:52,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 848. [2021-11-07 07:32:52,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 832 states have (on average 1.3605769230769231) internal successors, (1132), 847 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:52,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1132 transitions. [2021-11-07 07:32:52,575 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1132 transitions. Word has length 81 [2021-11-07 07:32:52,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:52,576 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1132 transitions. [2021-11-07 07:32:52,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 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) [2021-11-07 07:32:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1132 transitions. [2021-11-07 07:32:52,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 07:32:52,579 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:52,579 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:52,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 07:32:52,580 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:52,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:52,581 INFO L85 PathProgramCache]: Analyzing trace with hash 962867702, now seen corresponding path program 1 times [2021-11-07 07:32:52,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:52,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062249177] [2021-11-07 07:32:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:52,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:52,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:52,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062249177] [2021-11-07 07:32:52,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062249177] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:52,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:52,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:52,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639429341] [2021-11-07 07:32:52,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:52,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:52,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:52,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:52,742 INFO L87 Difference]: Start difference. First operand 848 states and 1132 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) [2021-11-07 07:32:54,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:54,129 INFO L93 Difference]: Finished difference Result 2170 states and 3061 transitions. [2021-11-07 07:32:54,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:32:54,129 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 [2021-11-07 07:32:54,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:54,138 INFO L225 Difference]: With dead ends: 2170 [2021-11-07 07:32:54,138 INFO L226 Difference]: Without dead ends: 1919 [2021-11-07 07:32:54,139 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:32:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2021-11-07 07:32:54,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 847. [2021-11-07 07:32:54,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3598074608904933) internal successors, (1130), 846 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1130 transitions. [2021-11-07 07:32:54,272 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1130 transitions. Word has length 81 [2021-11-07 07:32:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:54,273 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1130 transitions. [2021-11-07 07:32:54,273 INFO L471 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) [2021-11-07 07:32:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1130 transitions. [2021-11-07 07:32:54,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 07:32:54,275 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:54,275 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:54,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 07:32:54,276 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:54,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:54,276 INFO L85 PathProgramCache]: Analyzing trace with hash 547042711, now seen corresponding path program 1 times [2021-11-07 07:32:54,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:54,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034590330] [2021-11-07 07:32:54,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:54,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:54,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:54,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034590330] [2021-11-07 07:32:54,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034590330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:54,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:54,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:54,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406887399] [2021-11-07 07:32:54,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:54,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:54,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:54,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:54,466 INFO L87 Difference]: Start difference. First operand 847 states and 1130 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:32:55,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:55,807 INFO L93 Difference]: Finished difference Result 2172 states and 3062 transitions. [2021-11-07 07:32:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:32:55,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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 [2021-11-07 07:32:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:55,818 INFO L225 Difference]: With dead ends: 2172 [2021-11-07 07:32:55,818 INFO L226 Difference]: Without dead ends: 1919 [2021-11-07 07:32:55,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:32:55,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2021-11-07 07:32:55,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 847. [2021-11-07 07:32:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.358604091456077) internal successors, (1129), 846 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:55,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1129 transitions. [2021-11-07 07:32:55,948 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1129 transitions. Word has length 82 [2021-11-07 07:32:55,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:55,949 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1129 transitions. [2021-11-07 07:32:55,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:32:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1129 transitions. [2021-11-07 07:32:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 07:32:55,951 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:55,952 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:55,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 07:32:55,952 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:55,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:55,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1592889193, now seen corresponding path program 1 times [2021-11-07 07:32:55,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:55,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129018674] [2021-11-07 07:32:55,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:55,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:56,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:56,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129018674] [2021-11-07 07:32:56,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129018674] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:56,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:56,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:56,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148453532] [2021-11-07 07:32:56,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:56,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:56,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:56,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:56,118 INFO L87 Difference]: Start difference. First operand 847 states and 1129 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:32:57,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:57,304 INFO L93 Difference]: Finished difference Result 2175 states and 3064 transitions. [2021-11-07 07:32:57,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:32:57,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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 [2021-11-07 07:32:57,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:57,312 INFO L225 Difference]: With dead ends: 2175 [2021-11-07 07:32:57,312 INFO L226 Difference]: Without dead ends: 1919 [2021-11-07 07:32:57,314 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:32:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2021-11-07 07:32:57,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 847. [2021-11-07 07:32:57,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3561973525872444) internal successors, (1127), 846 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:57,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1127 transitions. [2021-11-07 07:32:57,442 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1127 transitions. Word has length 82 [2021-11-07 07:32:57,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:57,442 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1127 transitions. [2021-11-07 07:32:57,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:32:57,442 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1127 transitions. [2021-11-07 07:32:57,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 07:32:57,444 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:57,444 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:57,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 07:32:57,445 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:57,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:57,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1441526830, now seen corresponding path program 1 times [2021-11-07 07:32:57,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:57,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830625366] [2021-11-07 07:32:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:57,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:57,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:57,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830625366] [2021-11-07 07:32:57,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830625366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:57,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:57,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:57,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409927306] [2021-11-07 07:32:57,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:57,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:57,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:57,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:57,591 INFO L87 Difference]: Start difference. First operand 847 states and 1127 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:32:58,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:58,906 INFO L93 Difference]: Finished difference Result 1701 states and 2351 transitions. [2021-11-07 07:32:58,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:32:58,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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 [2021-11-07 07:32:58,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:58,920 INFO L225 Difference]: With dead ends: 1701 [2021-11-07 07:32:58,920 INFO L226 Difference]: Without dead ends: 1404 [2021-11-07 07:32:58,921 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:32:58,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2021-11-07 07:32:59,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 847. [2021-11-07 07:32:59,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.354993983152828) internal successors, (1126), 846 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1126 transitions. [2021-11-07 07:32:59,032 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1126 transitions. Word has length 82 [2021-11-07 07:32:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:59,033 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1126 transitions. [2021-11-07 07:32:59,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:32:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1126 transitions. [2021-11-07 07:32:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 07:32:59,035 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:59,035 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:32:59,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 07:32:59,036 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:32:59,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash 906756407, now seen corresponding path program 1 times [2021-11-07 07:32:59,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:59,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966757015] [2021-11-07 07:32:59,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:59,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:59,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:59,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966757015] [2021-11-07 07:32:59,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966757015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:32:59,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:32:59,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:32:59,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206388229] [2021-11-07 07:32:59,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:32:59,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:59,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:32:59,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:32:59,179 INFO L87 Difference]: Start difference. First operand 847 states and 1126 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:33:00,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:00,528 INFO L93 Difference]: Finished difference Result 2172 states and 3058 transitions. [2021-11-07 07:33:00,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:33:00,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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 [2021-11-07 07:33:00,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:00,533 INFO L225 Difference]: With dead ends: 2172 [2021-11-07 07:33:00,533 INFO L226 Difference]: Without dead ends: 1919 [2021-11-07 07:33:00,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:33:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2021-11-07 07:33:00,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 847. [2021-11-07 07:33:00,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3537906137184115) internal successors, (1125), 846 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:00,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1125 transitions. [2021-11-07 07:33:00,659 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1125 transitions. Word has length 82 [2021-11-07 07:33:00,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:00,659 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1125 transitions. [2021-11-07 07:33:00,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:33:00,659 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1125 transitions. [2021-11-07 07:33:00,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 07:33:00,660 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:00,660 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:00,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 07:33:00,661 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:00,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1674020809, now seen corresponding path program 1 times [2021-11-07 07:33:00,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:00,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247363526] [2021-11-07 07:33:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:00,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:00,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:00,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:00,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247363526] [2021-11-07 07:33:00,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247363526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:00,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:00,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 07:33:00,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410580066] [2021-11-07 07:33:00,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:33:00,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:00,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:33:00,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:33:00,886 INFO L87 Difference]: Start difference. First operand 847 states and 1125 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 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) [2021-11-07 07:33:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:03,008 INFO L93 Difference]: Finished difference Result 2339 states and 3254 transitions. [2021-11-07 07:33:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:33:03,008 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 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 [2021-11-07 07:33:03,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:03,012 INFO L225 Difference]: With dead ends: 2339 [2021-11-07 07:33:03,012 INFO L226 Difference]: Without dead ends: 2086 [2021-11-07 07:33:03,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 07:33:03,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2021-11-07 07:33:03,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 847. [2021-11-07 07:33:03,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3525872442839952) internal successors, (1124), 846 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:03,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1124 transitions. [2021-11-07 07:33:03,175 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1124 transitions. Word has length 82 [2021-11-07 07:33:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:03,175 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1124 transitions. [2021-11-07 07:33:03,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 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) [2021-11-07 07:33:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1124 transitions. [2021-11-07 07:33:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 07:33:03,178 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:03,178 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:03,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-07 07:33:03,179 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:03,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:03,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1584942680, now seen corresponding path program 1 times [2021-11-07 07:33:03,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:03,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024493939] [2021-11-07 07:33:03,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:03,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:03,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:03,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024493939] [2021-11-07 07:33:03,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024493939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:03,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:03,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:33:03,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591197982] [2021-11-07 07:33:03,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:33:03,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:03,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:33:03,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:33:03,316 INFO L87 Difference]: Start difference. First operand 847 states and 1124 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:33:04,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:04,595 INFO L93 Difference]: Finished difference Result 2248 states and 3117 transitions. [2021-11-07 07:33:04,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:33:04,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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 [2021-11-07 07:33:04,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:04,599 INFO L225 Difference]: With dead ends: 2248 [2021-11-07 07:33:04,599 INFO L226 Difference]: Without dead ends: 1887 [2021-11-07 07:33:04,600 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:33:04,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2021-11-07 07:33:04,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 842. [2021-11-07 07:33:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 826 states have (on average 1.3535108958837772) internal successors, (1118), 841 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:04,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1118 transitions. [2021-11-07 07:33:04,740 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1118 transitions. Word has length 82 [2021-11-07 07:33:04,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:04,740 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1118 transitions. [2021-11-07 07:33:04,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2021-11-07 07:33:04,740 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1118 transitions. [2021-11-07 07:33:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:04,742 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:04,742 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:04,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-07 07:33:04,743 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:04,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:04,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2120283973, now seen corresponding path program 1 times [2021-11-07 07:33:04,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:04,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550039701] [2021-11-07 07:33:04,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:04,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:04,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:04,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550039701] [2021-11-07 07:33:04,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550039701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:04,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:04,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:33:04,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869565176] [2021-11-07 07:33:04,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:33:04,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:04,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:33:04,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:33:04,893 INFO L87 Difference]: Start difference. First operand 842 states and 1118 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) [2021-11-07 07:33:06,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:06,296 INFO L93 Difference]: Finished difference Result 1920 states and 2679 transitions. [2021-11-07 07:33:06,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:33:06,296 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 [2021-11-07 07:33:06,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:06,299 INFO L225 Difference]: With dead ends: 1920 [2021-11-07 07:33:06,299 INFO L226 Difference]: Without dead ends: 1914 [2021-11-07 07:33:06,299 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:33:06,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2021-11-07 07:33:06,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 842. [2021-11-07 07:33:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 826 states have (on average 1.3523002421307506) internal successors, (1117), 841 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:06,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1117 transitions. [2021-11-07 07:33:06,435 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1117 transitions. Word has length 83 [2021-11-07 07:33:06,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:06,436 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1117 transitions. [2021-11-07 07:33:06,436 INFO L471 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) [2021-11-07 07:33:06,436 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1117 transitions. [2021-11-07 07:33:06,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:06,437 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:06,438 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:06,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-07 07:33:06,438 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:06,439 INFO L85 PathProgramCache]: Analyzing trace with hash -647233403, now seen corresponding path program 1 times [2021-11-07 07:33:06,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:06,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530597589] [2021-11-07 07:33:06,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:06,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:06,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:06,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:06,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530597589] [2021-11-07 07:33:06,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530597589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:06,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:06,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 07:33:06,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939304203] [2021-11-07 07:33:06,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:33:06,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:06,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:33:06,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:33:06,634 INFO L87 Difference]: Start difference. First operand 842 states and 1117 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 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) [2021-11-07 07:33:09,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:09,629 INFO L93 Difference]: Finished difference Result 3525 states and 4983 transitions. [2021-11-07 07:33:09,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:33:09,629 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 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 [2021-11-07 07:33:09,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:09,634 INFO L225 Difference]: With dead ends: 3525 [2021-11-07 07:33:09,635 INFO L226 Difference]: Without dead ends: 3506 [2021-11-07 07:33:09,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-07 07:33:09,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2021-11-07 07:33:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 847. [2021-11-07 07:33:09,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3501805054151625) internal successors, (1122), 846 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:09,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1122 transitions. [2021-11-07 07:33:09,811 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1122 transitions. Word has length 83 [2021-11-07 07:33:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:09,811 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1122 transitions. [2021-11-07 07:33:09,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 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) [2021-11-07 07:33:09,811 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1122 transitions. [2021-11-07 07:33:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:09,813 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:09,813 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:09,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-07 07:33:09,814 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:09,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:09,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1292109307, now seen corresponding path program 1 times [2021-11-07 07:33:09,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:09,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390924207] [2021-11-07 07:33:09,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:09,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:10,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:10,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:10,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390924207] [2021-11-07 07:33:10,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390924207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:10,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:10,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 07:33:10,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332467482] [2021-11-07 07:33:10,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:33:10,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:10,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:33:10,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:33:10,041 INFO L87 Difference]: Start difference. First operand 847 states and 1122 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-11-07 07:33:12,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:12,492 INFO L93 Difference]: Finished difference Result 2095 states and 2882 transitions. [2021-11-07 07:33:12,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:33:12,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2021-11-07 07:33:12,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:12,498 INFO L225 Difference]: With dead ends: 2095 [2021-11-07 07:33:12,498 INFO L226 Difference]: Without dead ends: 2089 [2021-11-07 07:33:12,499 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 07:33:12,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2021-11-07 07:33:12,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 847. [2021-11-07 07:33:12,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.348977135980746) internal successors, (1121), 846 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:12,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1121 transitions. [2021-11-07 07:33:12,779 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1121 transitions. Word has length 83 [2021-11-07 07:33:12,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:12,779 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1121 transitions. [2021-11-07 07:33:12,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-11-07 07:33:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1121 transitions. [2021-11-07 07:33:12,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:12,783 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:12,784 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:12,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-07 07:33:12,784 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:12,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:12,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2136665467, now seen corresponding path program 1 times [2021-11-07 07:33:12,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:12,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846674184] [2021-11-07 07:33:12,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:12,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:12,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:12,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:12,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846674184] [2021-11-07 07:33:12,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846674184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:12,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:12,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:33:12,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290978604] [2021-11-07 07:33:12,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:33:12,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:12,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:33:12,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:33:12,940 INFO L87 Difference]: Start difference. First operand 847 states and 1121 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) [2021-11-07 07:33:14,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:14,349 INFO L93 Difference]: Finished difference Result 2179 states and 3061 transitions. [2021-11-07 07:33:14,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:33:14,350 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 [2021-11-07 07:33:14,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:14,352 INFO L225 Difference]: With dead ends: 2179 [2021-11-07 07:33:14,352 INFO L226 Difference]: Without dead ends: 1919 [2021-11-07 07:33:14,353 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:33:14,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2021-11-07 07:33:14,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 847. [2021-11-07 07:33:14,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3465703971119134) internal successors, (1119), 846 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:14,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1119 transitions. [2021-11-07 07:33:14,575 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1119 transitions. Word has length 83 [2021-11-07 07:33:14,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:14,575 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1119 transitions. [2021-11-07 07:33:14,576 INFO L471 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) [2021-11-07 07:33:14,576 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1119 transitions. [2021-11-07 07:33:14,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:14,577 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:14,577 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:14,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-07 07:33:14,578 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:14,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:14,578 INFO L85 PathProgramCache]: Analyzing trace with hash -609215547, now seen corresponding path program 1 times [2021-11-07 07:33:14,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:14,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886075865] [2021-11-07 07:33:14,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:14,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:14,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:14,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886075865] [2021-11-07 07:33:14,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886075865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:14,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:14,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:33:14,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031260942] [2021-11-07 07:33:14,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:33:14,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:14,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:33:14,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:33:14,706 INFO L87 Difference]: Start difference. First operand 847 states and 1119 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) [2021-11-07 07:33:15,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:15,890 INFO L93 Difference]: Finished difference Result 2148 states and 2981 transitions. [2021-11-07 07:33:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:33:15,891 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 [2021-11-07 07:33:15,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:15,894 INFO L225 Difference]: With dead ends: 2148 [2021-11-07 07:33:15,895 INFO L226 Difference]: Without dead ends: 1871 [2021-11-07 07:33:15,896 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:33:15,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2021-11-07 07:33:16,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 847. [2021-11-07 07:33:16,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3441636582430807) internal successors, (1117), 846 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:16,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1117 transitions. [2021-11-07 07:33:16,133 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1117 transitions. Word has length 83 [2021-11-07 07:33:16,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:16,134 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1117 transitions. [2021-11-07 07:33:16,134 INFO L471 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) [2021-11-07 07:33:16,134 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1117 transitions. [2021-11-07 07:33:16,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:16,136 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:16,136 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:16,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-07 07:33:16,136 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:16,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2078948027, now seen corresponding path program 1 times [2021-11-07 07:33:16,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:16,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249580276] [2021-11-07 07:33:16,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:16,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:16,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:16,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:16,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249580276] [2021-11-07 07:33:16,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249580276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:16,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:16,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 07:33:16,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469689173] [2021-11-07 07:33:16,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:33:16,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:16,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:33:16,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:33:16,346 INFO L87 Difference]: Start difference. First operand 847 states and 1117 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-11-07 07:33:19,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:19,114 INFO L93 Difference]: Finished difference Result 2822 states and 3946 transitions. [2021-11-07 07:33:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:33:19,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2021-11-07 07:33:19,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:19,117 INFO L225 Difference]: With dead ends: 2822 [2021-11-07 07:33:19,118 INFO L226 Difference]: Without dead ends: 2513 [2021-11-07 07:33:19,119 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 07:33:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2021-11-07 07:33:19,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 847. [2021-11-07 07:33:19,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3429602888086642) internal successors, (1116), 846 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:19,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1116 transitions. [2021-11-07 07:33:19,288 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1116 transitions. Word has length 83 [2021-11-07 07:33:19,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:19,289 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1116 transitions. [2021-11-07 07:33:19,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-11-07 07:33:19,289 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1116 transitions. [2021-11-07 07:33:19,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:19,290 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:19,291 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:19,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-07 07:33:19,291 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:19,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:19,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1135938619, now seen corresponding path program 1 times [2021-11-07 07:33:19,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:19,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965623572] [2021-11-07 07:33:19,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:19,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:19,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:19,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:19,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965623572] [2021-11-07 07:33:19,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965623572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:19,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:19,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:33:19,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822694179] [2021-11-07 07:33:19,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:33:19,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:19,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:33:19,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:33:19,430 INFO L87 Difference]: Start difference. First operand 847 states and 1116 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) [2021-11-07 07:33:21,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:21,038 INFO L93 Difference]: Finished difference Result 2179 states and 3056 transitions. [2021-11-07 07:33:21,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:33:21,039 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 [2021-11-07 07:33:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:21,041 INFO L225 Difference]: With dead ends: 2179 [2021-11-07 07:33:21,041 INFO L226 Difference]: Without dead ends: 1919 [2021-11-07 07:33:21,042 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:33:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2021-11-07 07:33:21,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 847. [2021-11-07 07:33:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3405535499398316) internal successors, (1114), 846 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:21,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1114 transitions. [2021-11-07 07:33:21,254 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1114 transitions. Word has length 83 [2021-11-07 07:33:21,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:21,254 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1114 transitions. [2021-11-07 07:33:21,254 INFO L471 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) [2021-11-07 07:33:21,254 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1114 transitions. [2021-11-07 07:33:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:21,255 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:21,255 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:21,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-07 07:33:21,256 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:21,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:21,256 INFO L85 PathProgramCache]: Analyzing trace with hash -120186235, now seen corresponding path program 1 times [2021-11-07 07:33:21,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:21,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676214284] [2021-11-07 07:33:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:21,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:21,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:21,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676214284] [2021-11-07 07:33:21,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676214284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:21,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:21,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 07:33:21,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304757738] [2021-11-07 07:33:21,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:33:21,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:21,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:33:21,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:33:21,455 INFO L87 Difference]: Start difference. First operand 847 states and 1114 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 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) [2021-11-07 07:33:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:24,624 INFO L93 Difference]: Finished difference Result 3791 states and 5371 transitions. [2021-11-07 07:33:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:33:24,624 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 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 [2021-11-07 07:33:24,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:24,628 INFO L225 Difference]: With dead ends: 3791 [2021-11-07 07:33:24,628 INFO L226 Difference]: Without dead ends: 3514 [2021-11-07 07:33:24,630 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-07 07:33:24,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2021-11-07 07:33:24,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 857. [2021-11-07 07:33:24,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 841 states have (on average 1.3365041617122473) internal successors, (1124), 856 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:24,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1124 transitions. [2021-11-07 07:33:24,849 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1124 transitions. Word has length 83 [2021-11-07 07:33:24,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:24,849 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 1124 transitions. [2021-11-07 07:33:24,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 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) [2021-11-07 07:33:24,850 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1124 transitions. [2021-11-07 07:33:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:24,851 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:24,851 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:24,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-07 07:33:24,852 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:24,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:24,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1344158299, now seen corresponding path program 1 times [2021-11-07 07:33:24,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:24,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371356843] [2021-11-07 07:33:24,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:24,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:25,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:25,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371356843] [2021-11-07 07:33:25,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371356843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:25,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:25,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 07:33:25,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861754112] [2021-11-07 07:33:25,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:33:25,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:25,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:33:25,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:33:25,073 INFO L87 Difference]: Start difference. First operand 857 states and 1124 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-11-07 07:33:27,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:27,502 INFO L93 Difference]: Finished difference Result 2363 states and 3269 transitions. [2021-11-07 07:33:27,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:33:27,502 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2021-11-07 07:33:27,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:27,505 INFO L225 Difference]: With dead ends: 2363 [2021-11-07 07:33:27,505 INFO L226 Difference]: Without dead ends: 2103 [2021-11-07 07:33:27,506 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 07:33:27,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2103 states. [2021-11-07 07:33:27,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2103 to 857. [2021-11-07 07:33:27,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 841 states have (on average 1.334126040428062) internal successors, (1122), 856 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:27,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1122 transitions. [2021-11-07 07:33:27,684 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1122 transitions. Word has length 83 [2021-11-07 07:33:27,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:27,685 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 1122 transitions. [2021-11-07 07:33:27,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-11-07 07:33:27,685 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1122 transitions. [2021-11-07 07:33:27,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:27,686 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:27,687 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:27,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-07 07:33:27,687 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:27,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1785662459, now seen corresponding path program 1 times [2021-11-07 07:33:27,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:27,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121181258] [2021-11-07 07:33:27,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:27,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:27,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:27,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:27,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121181258] [2021-11-07 07:33:27,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121181258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:27,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:27,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 07:33:27,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282505691] [2021-11-07 07:33:27,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:33:27,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:27,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:33:27,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:33:27,899 INFO L87 Difference]: Start difference. First operand 857 states and 1122 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-11-07 07:33:30,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:30,503 INFO L93 Difference]: Finished difference Result 2105 states and 2882 transitions. [2021-11-07 07:33:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:33:30,503 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2021-11-07 07:33:30,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:30,505 INFO L225 Difference]: With dead ends: 2105 [2021-11-07 07:33:30,506 INFO L226 Difference]: Without dead ends: 2099 [2021-11-07 07:33:30,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 07:33:30,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2021-11-07 07:33:30,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 857. [2021-11-07 07:33:30,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 841 states have (on average 1.3329369797859691) internal successors, (1121), 856 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1121 transitions. [2021-11-07 07:33:30,776 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1121 transitions. Word has length 83 [2021-11-07 07:33:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:30,776 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 1121 transitions. [2021-11-07 07:33:30,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2021-11-07 07:33:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1121 transitions. [2021-11-07 07:33:30,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 07:33:30,778 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:30,778 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:30,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-07 07:33:30,778 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:30,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1863854243, now seen corresponding path program 1 times [2021-11-07 07:33:30,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:30,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950842809] [2021-11-07 07:33:30,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:30,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:30,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:30,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:30,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950842809] [2021-11-07 07:33:30,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950842809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:30,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:30,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:33:30,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954205712] [2021-11-07 07:33:30,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:33:30,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:30,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:33:30,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:33:30,915 INFO L87 Difference]: Start difference. First operand 857 states and 1121 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) [2021-11-07 07:33:32,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:32,535 INFO L93 Difference]: Finished difference Result 2182 states and 3053 transitions. [2021-11-07 07:33:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:33:32,536 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 [2021-11-07 07:33:32,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:32,537 INFO L225 Difference]: With dead ends: 2182 [2021-11-07 07:33:32,538 INFO L226 Difference]: Without dead ends: 1929 [2021-11-07 07:33:32,538 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:33:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2021-11-07 07:33:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 857. [2021-11-07 07:33:32,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 841 states have (on average 1.3317479191438764) internal successors, (1120), 856 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:32,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1120 transitions. [2021-11-07 07:33:32,734 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1120 transitions. Word has length 83 [2021-11-07 07:33:32,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:32,734 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 1120 transitions. [2021-11-07 07:33:32,734 INFO L471 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) [2021-11-07 07:33:32,735 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1120 transitions. [2021-11-07 07:33:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:33:32,736 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:32,736 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:32,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-07 07:33:32,736 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash 901356690, now seen corresponding path program 1 times [2021-11-07 07:33:32,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:32,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212004831] [2021-11-07 07:33:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:32,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:34,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:34,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212004831] [2021-11-07 07:33:34,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212004831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:34,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:34,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 07:33:34,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252949890] [2021-11-07 07:33:34,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 07:33:34,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:34,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 07:33:34,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2021-11-07 07:33:34,150 INFO L87 Difference]: Start difference. First operand 857 states and 1120 transitions. Second operand has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:33:43,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:43,435 INFO L93 Difference]: Finished difference Result 2619 states and 3472 transitions. [2021-11-07 07:33:43,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-07 07:33:43,437 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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 [2021-11-07 07:33:43,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:43,439 INFO L225 Difference]: With dead ends: 2619 [2021-11-07 07:33:43,439 INFO L226 Difference]: Without dead ends: 2368 [2021-11-07 07:33:43,441 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=613, Invalid=3293, Unknown=0, NotChecked=0, Total=3906 [2021-11-07 07:33:43,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2021-11-07 07:33:43,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 878. [2021-11-07 07:33:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 862 states have (on average 1.3306264501160092) internal successors, (1147), 877 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1147 transitions. [2021-11-07 07:33:43,676 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1147 transitions. Word has length 84 [2021-11-07 07:33:43,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:43,677 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 1147 transitions. [2021-11-07 07:33:43,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:33:43,677 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1147 transitions. [2021-11-07 07:33:43,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:33:43,679 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:43,679 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:43,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-07 07:33:43,680 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1803038574, now seen corresponding path program 1 times [2021-11-07 07:33:43,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:43,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069938150] [2021-11-07 07:33:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:43,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:45,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:45,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069938150] [2021-11-07 07:33:45,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069938150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:45,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:45,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 07:33:45,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409003081] [2021-11-07 07:33:45,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 07:33:45,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:45,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 07:33:45,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2021-11-07 07:33:45,279 INFO L87 Difference]: Start difference. First operand 878 states and 1147 transitions. Second operand has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:33:54,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:54,820 INFO L93 Difference]: Finished difference Result 2513 states and 3359 transitions. [2021-11-07 07:33:54,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-07 07:33:54,820 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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 [2021-11-07 07:33:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:54,822 INFO L225 Difference]: With dead ends: 2513 [2021-11-07 07:33:54,822 INFO L226 Difference]: Without dead ends: 2262 [2021-11-07 07:33:54,823 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=543, Invalid=2763, Unknown=0, NotChecked=0, Total=3306 [2021-11-07 07:33:54,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2021-11-07 07:33:55,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 889. [2021-11-07 07:33:55,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 873 states have (on average 1.3298969072164948) internal successors, (1161), 888 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:55,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1161 transitions. [2021-11-07 07:33:55,054 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1161 transitions. Word has length 84 [2021-11-07 07:33:55,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:55,054 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1161 transitions. [2021-11-07 07:33:55,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:33:55,054 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1161 transitions. [2021-11-07 07:33:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:33:55,055 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:55,055 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:33:55,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-07 07:33:55,056 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:33:55,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:55,056 INFO L85 PathProgramCache]: Analyzing trace with hash 469045170, now seen corresponding path program 1 times [2021-11-07 07:33:55,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:55,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980116885] [2021-11-07 07:33:55,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:55,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:56,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:56,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980116885] [2021-11-07 07:33:56,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980116885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:33:56,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:33:56,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 07:33:56,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826559378] [2021-11-07 07:33:56,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 07:33:56,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:56,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 07:33:56,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2021-11-07 07:33:56,111 INFO L87 Difference]: Start difference. First operand 889 states and 1161 transitions. Second operand has 29 states, 29 states have (on average 2.896551724137931) internal successors, (84), 29 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) [2021-11-07 07:34:05,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:05,273 INFO L93 Difference]: Finished difference Result 3534 states and 4875 transitions. [2021-11-07 07:34:05,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-07 07:34:05,273 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.896551724137931) internal successors, (84), 29 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 [2021-11-07 07:34:05,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:05,276 INFO L225 Difference]: With dead ends: 3534 [2021-11-07 07:34:05,277 INFO L226 Difference]: Without dead ends: 3280 [2021-11-07 07:34:05,279 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=534, Invalid=2888, Unknown=0, NotChecked=0, Total=3422 [2021-11-07 07:34:05,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3280 states. [2021-11-07 07:34:05,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3280 to 894. [2021-11-07 07:34:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 878 states have (on average 1.3291571753986333) internal successors, (1167), 893 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1167 transitions. [2021-11-07 07:34:05,558 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1167 transitions. Word has length 84 [2021-11-07 07:34:05,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:05,559 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1167 transitions. [2021-11-07 07:34:05,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.896551724137931) internal successors, (84), 29 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) [2021-11-07 07:34:05,559 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1167 transitions. [2021-11-07 07:34:05,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:34:05,560 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:05,560 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:34:05,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-07 07:34:05,560 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:34:05,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:05,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1100178831, now seen corresponding path program 1 times [2021-11-07 07:34:05,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:05,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636908549] [2021-11-07 07:34:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:05,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:05,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:05,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636908549] [2021-11-07 07:34:05,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636908549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:05,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:05,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:34:05,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557916514] [2021-11-07 07:34:05,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:34:05,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:05,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:34:05,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:34:05,689 INFO L87 Difference]: Start difference. First operand 894 states and 1167 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:34:07,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:07,363 INFO L93 Difference]: Finished difference Result 1972 states and 2728 transitions. [2021-11-07 07:34:07,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:34:07,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2021-11-07 07:34:07,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:07,365 INFO L225 Difference]: With dead ends: 1972 [2021-11-07 07:34:07,365 INFO L226 Difference]: Without dead ends: 1966 [2021-11-07 07:34:07,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:34:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2021-11-07 07:34:07,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 894. [2021-11-07 07:34:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 878 states have (on average 1.328018223234624) internal successors, (1166), 893 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1166 transitions. [2021-11-07 07:34:07,620 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1166 transitions. Word has length 84 [2021-11-07 07:34:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:07,620 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1166 transitions. [2021-11-07 07:34:07,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:34:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1166 transitions. [2021-11-07 07:34:07,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:34:07,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:07,621 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:34:07,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-07 07:34:07,621 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:34:07,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:07,622 INFO L85 PathProgramCache]: Analyzing trace with hash -2044598901, now seen corresponding path program 1 times [2021-11-07 07:34:07,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:07,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279832033] [2021-11-07 07:34:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:07,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:07,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:07,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279832033] [2021-11-07 07:34:07,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279832033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:07,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:07,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:34:07,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536209495] [2021-11-07 07:34:07,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:34:07,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:07,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:34:07,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:34:07,741 INFO L87 Difference]: Start difference. First operand 894 states and 1166 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:34:09,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:09,432 INFO L93 Difference]: Finished difference Result 1927 states and 2627 transitions. [2021-11-07 07:34:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:34:09,432 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2021-11-07 07:34:09,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:09,434 INFO L225 Difference]: With dead ends: 1927 [2021-11-07 07:34:09,434 INFO L226 Difference]: Without dead ends: 1908 [2021-11-07 07:34:09,434 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:34:09,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2021-11-07 07:34:09,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 889. [2021-11-07 07:34:09,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 873 states have (on average 1.3287514318442153) internal successors, (1160), 888 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:09,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1160 transitions. [2021-11-07 07:34:09,705 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1160 transitions. Word has length 84 [2021-11-07 07:34:09,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:09,706 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1160 transitions. [2021-11-07 07:34:09,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:34:09,706 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1160 transitions. [2021-11-07 07:34:09,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:34:09,707 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:09,707 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:34:09,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-07 07:34:09,708 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:34:09,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1236288997, now seen corresponding path program 1 times [2021-11-07 07:34:09,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:09,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540764149] [2021-11-07 07:34:09,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:09,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:09,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:09,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540764149] [2021-11-07 07:34:09,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540764149] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:09,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:09,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:34:09,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468203006] [2021-11-07 07:34:09,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:34:09,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:09,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:34:09,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:34:09,844 INFO L87 Difference]: Start difference. First operand 889 states and 1160 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:34:11,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:11,332 INFO L93 Difference]: Finished difference Result 1755 states and 2394 transitions. [2021-11-07 07:34:11,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:34:11,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2021-11-07 07:34:11,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:11,333 INFO L225 Difference]: With dead ends: 1755 [2021-11-07 07:34:11,333 INFO L226 Difference]: Without dead ends: 1446 [2021-11-07 07:34:11,334 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:34:11,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2021-11-07 07:34:11,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 889. [2021-11-07 07:34:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 873 states have (on average 1.3276059564719358) internal successors, (1159), 888 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1159 transitions. [2021-11-07 07:34:11,592 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1159 transitions. Word has length 84 [2021-11-07 07:34:11,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:11,592 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1159 transitions. [2021-11-07 07:34:11,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:34:11,592 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1159 transitions. [2021-11-07 07:34:11,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:34:11,593 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:11,593 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:34:11,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-07 07:34:11,593 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:34:11,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:11,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2078732722, now seen corresponding path program 1 times [2021-11-07 07:34:11,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:11,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138758872] [2021-11-07 07:34:11,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:11,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:12,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:12,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138758872] [2021-11-07 07:34:12,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138758872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:12,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:12,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 07:34:12,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721710144] [2021-11-07 07:34:12,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 07:34:12,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:12,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 07:34:12,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2021-11-07 07:34:12,941 INFO L87 Difference]: Start difference. First operand 889 states and 1159 transitions. Second operand has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:34:25,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:25,845 INFO L93 Difference]: Finished difference Result 5314 states and 7489 transitions. [2021-11-07 07:34:25,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-07 07:34:25,845 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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 [2021-11-07 07:34:25,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:25,850 INFO L225 Difference]: With dead ends: 5314 [2021-11-07 07:34:25,850 INFO L226 Difference]: Without dead ends: 5063 [2021-11-07 07:34:25,853 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=618, Invalid=3414, Unknown=0, NotChecked=0, Total=4032 [2021-11-07 07:34:25,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5063 states. [2021-11-07 07:34:26,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5063 to 904. [2021-11-07 07:34:26,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 888 states have (on average 1.3277027027027026) internal successors, (1179), 903 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:26,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1179 transitions. [2021-11-07 07:34:26,203 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1179 transitions. Word has length 84 [2021-11-07 07:34:26,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:26,204 INFO L470 AbstractCegarLoop]: Abstraction has 904 states and 1179 transitions. [2021-11-07 07:34:26,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:34:26,204 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1179 transitions. [2021-11-07 07:34:26,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:34:26,205 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:26,205 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:34:26,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-07 07:34:26,205 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:34:26,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:26,206 INFO L85 PathProgramCache]: Analyzing trace with hash -918543470, now seen corresponding path program 1 times [2021-11-07 07:34:26,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:26,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775738615] [2021-11-07 07:34:26,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:26,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:27,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:27,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:27,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775738615] [2021-11-07 07:34:27,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775738615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:27,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:27,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 07:34:27,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719593205] [2021-11-07 07:34:27,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 07:34:27,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:27,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 07:34:27,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2021-11-07 07:34:27,869 INFO L87 Difference]: Start difference. First operand 904 states and 1179 transitions. Second operand has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:34:41,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:41,121 INFO L93 Difference]: Finished difference Result 4884 states and 6819 transitions. [2021-11-07 07:34:41,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-07 07:34:41,121 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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 [2021-11-07 07:34:41,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:41,125 INFO L225 Difference]: With dead ends: 4884 [2021-11-07 07:34:41,125 INFO L226 Difference]: Without dead ends: 4633 [2021-11-07 07:34:41,132 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=534, Invalid=2888, Unknown=0, NotChecked=0, Total=3422 [2021-11-07 07:34:41,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4633 states. [2021-11-07 07:34:41,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4633 to 910. [2021-11-07 07:34:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 894 states have (on average 1.3288590604026846) internal successors, (1188), 909 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:41,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1188 transitions. [2021-11-07 07:34:41,503 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1188 transitions. Word has length 84 [2021-11-07 07:34:41,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:41,504 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1188 transitions. [2021-11-07 07:34:41,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:34:41,504 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1188 transitions. [2021-11-07 07:34:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:34:41,505 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:41,505 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:34:41,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-07 07:34:41,505 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:34:41,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:41,506 INFO L85 PathProgramCache]: Analyzing trace with hash 880993138, now seen corresponding path program 1 times [2021-11-07 07:34:41,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:41,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561126564] [2021-11-07 07:34:41,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:41,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:42,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:42,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561126564] [2021-11-07 07:34:42,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561126564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:42,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:42,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 07:34:42,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849807171] [2021-11-07 07:34:42,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 07:34:42,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:42,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 07:34:42,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870 [2021-11-07 07:34:42,884 INFO L87 Difference]: Start difference. First operand 910 states and 1188 transitions. Second operand has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:34:56,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:56,807 INFO L93 Difference]: Finished difference Result 4512 states and 6337 transitions. [2021-11-07 07:34:56,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-07 07:34:56,807 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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 [2021-11-07 07:34:56,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:56,811 INFO L225 Difference]: With dead ends: 4512 [2021-11-07 07:34:56,811 INFO L226 Difference]: Without dead ends: 4261 [2021-11-07 07:34:56,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=640, Invalid=3142, Unknown=0, NotChecked=0, Total=3782 [2021-11-07 07:34:56,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4261 states. [2021-11-07 07:34:57,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4261 to 909. [2021-11-07 07:34:57,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 893 states have (on average 1.3281075027995521) internal successors, (1186), 908 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:57,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1186 transitions. [2021-11-07 07:34:57,202 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1186 transitions. Word has length 84 [2021-11-07 07:34:57,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:57,202 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1186 transitions. [2021-11-07 07:34:57,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:34:57,202 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1186 transitions. [2021-11-07 07:34:57,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:34:57,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:57,204 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:34:57,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-07 07:34:57,204 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:34:57,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:57,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1603993090, now seen corresponding path program 1 times [2021-11-07 07:34:57,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:57,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009351899] [2021-11-07 07:34:57,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:57,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:57,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:57,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009351899] [2021-11-07 07:34:57,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009351899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:57,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:57,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:34:57,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928113179] [2021-11-07 07:34:57,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:34:57,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:57,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:34:57,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:34:57,353 INFO L87 Difference]: Start difference. First operand 909 states and 1186 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:34:59,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:59,590 INFO L93 Difference]: Finished difference Result 2241 states and 3126 transitions. [2021-11-07 07:34:59,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:34:59,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2021-11-07 07:34:59,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:59,592 INFO L225 Difference]: With dead ends: 2241 [2021-11-07 07:34:59,592 INFO L226 Difference]: Without dead ends: 1981 [2021-11-07 07:34:59,593 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:34:59,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2021-11-07 07:34:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 909. [2021-11-07 07:34:59,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 893 states have (on average 1.3258678611422172) internal successors, (1184), 908 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:59,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1184 transitions. [2021-11-07 07:34:59,916 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1184 transitions. Word has length 84 [2021-11-07 07:34:59,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:59,917 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1184 transitions. [2021-11-07 07:34:59,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:34:59,917 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1184 transitions. [2021-11-07 07:34:59,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:34:59,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:59,919 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:34:59,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-07 07:34:59,919 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:34:59,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:59,920 INFO L85 PathProgramCache]: Analyzing trace with hash -875805486, now seen corresponding path program 1 times [2021-11-07 07:34:59,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:59,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905757841] [2021-11-07 07:34:59,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:59,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:01,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:01,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:01,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905757841] [2021-11-07 07:35:01,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905757841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:35:01,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:35:01,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 07:35:01,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592379534] [2021-11-07 07:35:01,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 07:35:01,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:01,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 07:35:01,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2021-11-07 07:35:01,085 INFO L87 Difference]: Start difference. First operand 909 states and 1184 transitions. Second operand has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:35:12,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:12,226 INFO L93 Difference]: Finished difference Result 3550 states and 4888 transitions. [2021-11-07 07:35:12,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-07 07:35:12,227 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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 [2021-11-07 07:35:12,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:12,231 INFO L225 Difference]: With dead ends: 3550 [2021-11-07 07:35:12,231 INFO L226 Difference]: Without dead ends: 3296 [2021-11-07 07:35:12,233 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=613, Invalid=3047, Unknown=0, NotChecked=0, Total=3660 [2021-11-07 07:35:12,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2021-11-07 07:35:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 909. [2021-11-07 07:35:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 893 states have (on average 1.3236282194848825) internal successors, (1182), 908 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:12,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1182 transitions. [2021-11-07 07:35:12,703 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1182 transitions. Word has length 84 [2021-11-07 07:35:12,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:12,704 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1182 transitions. [2021-11-07 07:35:12,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:35:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1182 transitions. [2021-11-07 07:35:12,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:35:12,705 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:12,705 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:35:12,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-07 07:35:12,705 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:35:12,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:12,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1922627196, now seen corresponding path program 1 times [2021-11-07 07:35:12,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:12,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031418854] [2021-11-07 07:35:12,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:12,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:12,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:12,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031418854] [2021-11-07 07:35:12,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031418854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:35:12,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:35:12,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:35:12,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160891237] [2021-11-07 07:35:12,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:35:12,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:12,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:35:12,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:35:12,838 INFO L87 Difference]: Start difference. First operand 909 states and 1182 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:35:15,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:15,056 INFO L93 Difference]: Finished difference Result 2198 states and 3023 transitions. [2021-11-07 07:35:15,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:35:15,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2021-11-07 07:35:15,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:15,058 INFO L225 Difference]: With dead ends: 2198 [2021-11-07 07:35:15,059 INFO L226 Difference]: Without dead ends: 1921 [2021-11-07 07:35:15,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:35:15,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2021-11-07 07:35:15,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 904. [2021-11-07 07:35:15,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 888 states have (on average 1.3231981981981982) internal successors, (1175), 903 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1175 transitions. [2021-11-07 07:35:15,451 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1175 transitions. Word has length 84 [2021-11-07 07:35:15,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:15,451 INFO L470 AbstractCegarLoop]: Abstraction has 904 states and 1175 transitions. [2021-11-07 07:35:15,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:35:15,452 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1175 transitions. [2021-11-07 07:35:15,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:35:15,453 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:15,453 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:35:15,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-07 07:35:15,453 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:35:15,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:15,454 INFO L85 PathProgramCache]: Analyzing trace with hash 80443570, now seen corresponding path program 1 times [2021-11-07 07:35:15,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:15,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038919637] [2021-11-07 07:35:15,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:15,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:16,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:16,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038919637] [2021-11-07 07:35:16,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038919637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:35:16,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:35:16,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 07:35:16,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680471354] [2021-11-07 07:35:16,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 07:35:16,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:16,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 07:35:16,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2021-11-07 07:35:16,703 INFO L87 Difference]: Start difference. First operand 904 states and 1175 transitions. Second operand has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:35:28,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:28,458 INFO L93 Difference]: Finished difference Result 2878 states and 3821 transitions. [2021-11-07 07:35:28,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-07 07:35:28,460 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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 [2021-11-07 07:35:28,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:28,462 INFO L225 Difference]: With dead ends: 2878 [2021-11-07 07:35:28,462 INFO L226 Difference]: Without dead ends: 2627 [2021-11-07 07:35:28,464 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=566, Invalid=2514, Unknown=0, NotChecked=0, Total=3080 [2021-11-07 07:35:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2021-11-07 07:35:28,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 917. [2021-11-07 07:35:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 901 states have (on average 1.320754716981132) internal successors, (1190), 916 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1190 transitions. [2021-11-07 07:35:28,860 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1190 transitions. Word has length 84 [2021-11-07 07:35:28,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:28,861 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1190 transitions. [2021-11-07 07:35:28,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:35:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1190 transitions. [2021-11-07 07:35:28,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:35:28,862 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:28,862 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:35:28,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-07 07:35:28,862 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:35:28,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:28,863 INFO L85 PathProgramCache]: Analyzing trace with hash 802264831, now seen corresponding path program 1 times [2021-11-07 07:35:28,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:28,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991592790] [2021-11-07 07:35:28,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:28,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:28,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:28,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:28,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991592790] [2021-11-07 07:35:28,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991592790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:35:28,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:35:28,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:35:28,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665126750] [2021-11-07 07:35:28,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:35:28,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:28,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:35:28,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:35:28,987 INFO L87 Difference]: Start difference. First operand 917 states and 1190 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:35:31,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:31,278 INFO L93 Difference]: Finished difference Result 1995 states and 2751 transitions. [2021-11-07 07:35:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:35:31,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2021-11-07 07:35:31,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:31,281 INFO L225 Difference]: With dead ends: 1995 [2021-11-07 07:35:31,281 INFO L226 Difference]: Without dead ends: 1989 [2021-11-07 07:35:31,281 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:35:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2021-11-07 07:35:31,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 917. [2021-11-07 07:35:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 901 states have (on average 1.3196448390677025) internal successors, (1189), 916 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1189 transitions. [2021-11-07 07:35:31,655 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1189 transitions. Word has length 84 [2021-11-07 07:35:31,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:31,655 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1189 transitions. [2021-11-07 07:35:31,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-07 07:35:31,656 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1189 transitions. [2021-11-07 07:35:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:35:31,658 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:31,658 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:35:31,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-07 07:35:31,658 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:35:31,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:31,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1362383250, now seen corresponding path program 1 times [2021-11-07 07:35:31,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:31,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096964424] [2021-11-07 07:35:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:31,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:32,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:32,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096964424] [2021-11-07 07:35:32,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096964424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:35:32,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:35:32,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 07:35:32,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262281960] [2021-11-07 07:35:32,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 07:35:32,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:32,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 07:35:32,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2021-11-07 07:35:32,997 INFO L87 Difference]: Start difference. First operand 917 states and 1189 transitions. Second operand has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:35:46,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:46,175 INFO L93 Difference]: Finished difference Result 3633 states and 4968 transitions. [2021-11-07 07:35:46,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-07 07:35:46,175 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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 [2021-11-07 07:35:46,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:46,178 INFO L225 Difference]: With dead ends: 3633 [2021-11-07 07:35:46,179 INFO L226 Difference]: Without dead ends: 3379 [2021-11-07 07:35:46,180 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=618, Invalid=3042, Unknown=0, NotChecked=0, Total=3660 [2021-11-07 07:35:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2021-11-07 07:35:46,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 922. [2021-11-07 07:35:46,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 906 states have (on average 1.3189845474613686) internal successors, (1195), 921 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1195 transitions. [2021-11-07 07:35:46,584 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1195 transitions. Word has length 84 [2021-11-07 07:35:46,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:46,584 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1195 transitions. [2021-11-07 07:35:46,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8) internal successors, (84), 30 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) [2021-11-07 07:35:46,585 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1195 transitions. [2021-11-07 07:35:46,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:35:46,586 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:46,586 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:35:46,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-07 07:35:46,587 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:35:46,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:46,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1127032366, now seen corresponding path program 1 times [2021-11-07 07:35:46,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:46,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524938438] [2021-11-07 07:35:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:46,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:48,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:48,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524938438] [2021-11-07 07:35:48,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524938438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:35:48,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:35:48,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 07:35:48,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103131358] [2021-11-07 07:35:48,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 07:35:48,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:48,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 07:35:48,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=734, Unknown=0, NotChecked=0, Total=812 [2021-11-07 07:35:48,012 INFO L87 Difference]: Start difference. First operand 922 states and 1195 transitions. Second operand has 29 states, 29 states have (on average 2.896551724137931) internal successors, (84), 29 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) [2021-11-07 07:35:59,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:59,467 INFO L93 Difference]: Finished difference Result 3599 states and 4945 transitions. [2021-11-07 07:35:59,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-07 07:35:59,468 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.896551724137931) internal successors, (84), 29 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 [2021-11-07 07:35:59,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:59,471 INFO L225 Difference]: With dead ends: 3599 [2021-11-07 07:35:59,471 INFO L226 Difference]: Without dead ends: 3345 [2021-11-07 07:35:59,472 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=637, Invalid=2669, Unknown=0, NotChecked=0, Total=3306 [2021-11-07 07:35:59,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3345 states. [2021-11-07 07:35:59,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3345 to 922. [2021-11-07 07:35:59,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 906 states have (on average 1.3167770419426048) internal successors, (1193), 921 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:59,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1193 transitions. [2021-11-07 07:35:59,860 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1193 transitions. Word has length 84 [2021-11-07 07:35:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:59,861 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1193 transitions. [2021-11-07 07:35:59,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.896551724137931) internal successors, (84), 29 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) [2021-11-07 07:35:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1193 transitions. [2021-11-07 07:35:59,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:35:59,862 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:59,862 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:35:59,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-07 07:35:59,862 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:35:59,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:59,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2020430135, now seen corresponding path program 1 times [2021-11-07 07:35:59,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:59,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958170921] [2021-11-07 07:35:59,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:59,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:00,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:00,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958170921] [2021-11-07 07:36:00,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958170921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:36:00,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:36:00,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-11-07 07:36:00,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211385689] [2021-11-07 07:36:00,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-07 07:36:00,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:00,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-07 07:36:00,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2021-11-07 07:36:00,990 INFO L87 Difference]: Start difference. First operand 922 states and 1193 transitions. Second operand has 31 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 31 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) [2021-11-07 07:36:12,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:12,366 INFO L93 Difference]: Finished difference Result 3683 states and 5072 transitions. [2021-11-07 07:36:12,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-07 07:36:12,367 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 31 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 [2021-11-07 07:36:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:12,369 INFO L225 Difference]: With dead ends: 3683 [2021-11-07 07:36:12,369 INFO L226 Difference]: Without dead ends: 3431 [2021-11-07 07:36:12,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=674, Invalid=3358, Unknown=0, NotChecked=0, Total=4032 [2021-11-07 07:36:12,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3431 states. [2021-11-07 07:36:12,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3431 to 922. [2021-11-07 07:36:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 906 states have (on average 1.315673289183223) internal successors, (1192), 921 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1192 transitions. [2021-11-07 07:36:12,768 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1192 transitions. Word has length 84 [2021-11-07 07:36:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:12,768 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1192 transitions. [2021-11-07 07:36:12,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 31 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) [2021-11-07 07:36:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1192 transitions. [2021-11-07 07:36:12,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 07:36:12,769 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:12,770 INFO L513 BasicCegarLoop]: 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] [2021-11-07 07:36:12,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-07 07:36:12,770 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:36:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:12,770 INFO L85 PathProgramCache]: Analyzing trace with hash 267286385, now seen corresponding path program 1 times [2021-11-07 07:36:12,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:12,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266549990] [2021-11-07 07:36:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:12,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:13,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:13,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266549990] [2021-11-07 07:36:13,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266549990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:36:13,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:36:13,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 07:36:13,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467180562] [2021-11-07 07:36:13,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:36:13,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:13,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:36:13,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:36:13,016 INFO L87 Difference]: Start difference. First operand 922 states and 1192 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 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) [2021-11-07 07:36:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:14,912 INFO L93 Difference]: Finished difference Result 2332 states and 3135 transitions. [2021-11-07 07:36:14,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 07:36:14,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 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 [2021-11-07 07:36:14,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:14,914 INFO L225 Difference]: With dead ends: 2332 [2021-11-07 07:36:14,914 INFO L226 Difference]: Without dead ends: 1801 [2021-11-07 07:36:14,915 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:36:14,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2021-11-07 07:36:15,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 641. [2021-11-07 07:36:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 630 states have (on average 1.3412698412698412) internal successors, (845), 640 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 845 transitions. [2021-11-07 07:36:15,288 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 845 transitions. Word has length 84 [2021-11-07 07:36:15,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:15,288 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 845 transitions. [2021-11-07 07:36:15,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 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) [2021-11-07 07:36:15,289 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 845 transitions. [2021-11-07 07:36:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:36:15,290 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:15,290 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:36:15,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-07 07:36:15,290 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:36:15,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:15,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1485088950, now seen corresponding path program 1 times [2021-11-07 07:36:15,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:15,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950064117] [2021-11-07 07:36:15,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:15,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:16,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:16,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:16,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950064117] [2021-11-07 07:36:16,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950064117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:36:16,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:36:16,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 07:36:16,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772964120] [2021-11-07 07:36:16,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 07:36:16,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:16,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 07:36:16,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2021-11-07 07:36:16,809 INFO L87 Difference]: Start difference. First operand 641 states and 845 transitions. Second operand has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:26,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:26,117 INFO L93 Difference]: Finished difference Result 2140 states and 2883 transitions. [2021-11-07 07:36:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-07 07:36:26,118 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 07:36:26,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:26,120 INFO L225 Difference]: With dead ends: 2140 [2021-11-07 07:36:26,120 INFO L226 Difference]: Without dead ends: 2136 [2021-11-07 07:36:26,121 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=585, Invalid=2721, Unknown=0, NotChecked=0, Total=3306 [2021-11-07 07:36:26,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2021-11-07 07:36:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 648. [2021-11-07 07:36:26,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 637 states have (on average 1.3406593406593406) internal successors, (854), 647 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:26,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 854 transitions. [2021-11-07 07:36:26,490 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 854 transitions. Word has length 85 [2021-11-07 07:36:26,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:26,490 INFO L470 AbstractCegarLoop]: Abstraction has 648 states and 854 transitions. [2021-11-07 07:36:26,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:26,490 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 854 transitions. [2021-11-07 07:36:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:36:26,491 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:26,491 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:36:26,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-07 07:36:26,491 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:36:26,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:26,492 INFO L85 PathProgramCache]: Analyzing trace with hash 603289674, now seen corresponding path program 1 times [2021-11-07 07:36:26,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:26,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736445439] [2021-11-07 07:36:26,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:26,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:27,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:27,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736445439] [2021-11-07 07:36:27,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736445439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:36:27,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:36:27,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 07:36:27,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383597925] [2021-11-07 07:36:27,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 07:36:27,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:27,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 07:36:27,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2021-11-07 07:36:27,820 INFO L87 Difference]: Start difference. First operand 648 states and 854 transitions. Second operand has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:37,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:37,023 INFO L93 Difference]: Finished difference Result 1982 states and 2635 transitions. [2021-11-07 07:36:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-07 07:36:37,023 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 07:36:37,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:37,025 INFO L225 Difference]: With dead ends: 1982 [2021-11-07 07:36:37,025 INFO L226 Difference]: Without dead ends: 1975 [2021-11-07 07:36:37,026 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=535, Invalid=2771, Unknown=0, NotChecked=0, Total=3306 [2021-11-07 07:36:37,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2021-11-07 07:36:37,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 648. [2021-11-07 07:36:37,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 637 states have (on average 1.3390894819466248) internal successors, (853), 647 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:37,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 853 transitions. [2021-11-07 07:36:37,395 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 853 transitions. Word has length 85 [2021-11-07 07:36:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:37,396 INFO L470 AbstractCegarLoop]: Abstraction has 648 states and 853 transitions. [2021-11-07 07:36:37,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 853 transitions. [2021-11-07 07:36:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:36:37,396 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:37,397 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:36:37,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-07 07:36:37,397 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:36:37,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:37,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1646624310, now seen corresponding path program 1 times [2021-11-07 07:36:37,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:37,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361032417] [2021-11-07 07:36:37,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:37,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:38,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:38,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:38,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361032417] [2021-11-07 07:36:38,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361032417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:36:38,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:36:38,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-07 07:36:38,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721853533] [2021-11-07 07:36:38,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-07 07:36:38,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:38,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-07 07:36:38,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2021-11-07 07:36:38,560 INFO L87 Difference]: Start difference. First operand 648 states and 853 transitions. Second operand has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 28 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:44,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:44,992 INFO L93 Difference]: Finished difference Result 1934 states and 2593 transitions. [2021-11-07 07:36:44,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-07 07:36:44,992 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 28 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 07:36:44,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:44,994 INFO L225 Difference]: With dead ends: 1934 [2021-11-07 07:36:44,994 INFO L226 Difference]: Without dead ends: 1927 [2021-11-07 07:36:44,994 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=507, Invalid=2355, Unknown=0, NotChecked=0, Total=2862 [2021-11-07 07:36:44,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2021-11-07 07:36:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 648. [2021-11-07 07:36:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 637 states have (on average 1.337519623233909) internal successors, (852), 647 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:45,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 852 transitions. [2021-11-07 07:36:45,340 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 852 transitions. Word has length 85 [2021-11-07 07:36:45,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:45,340 INFO L470 AbstractCegarLoop]: Abstraction has 648 states and 852 transitions. [2021-11-07 07:36:45,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 28 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:45,341 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 852 transitions. [2021-11-07 07:36:45,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:36:45,342 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:45,342 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:36:45,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-07 07:36:45,342 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:36:45,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:45,342 INFO L85 PathProgramCache]: Analyzing trace with hash -13420768, now seen corresponding path program 1 times [2021-11-07 07:36:45,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:45,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245720464] [2021-11-07 07:36:45,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:45,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:45,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:45,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245720464] [2021-11-07 07:36:45,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245720464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:36:45,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:36:45,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 07:36:45,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324510877] [2021-11-07 07:36:45,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:36:45,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:45,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:36:45,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:36:45,694 INFO L87 Difference]: Start difference. First operand 648 states and 852 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:48,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:48,200 INFO L93 Difference]: Finished difference Result 2164 states and 3026 transitions. [2021-11-07 07:36:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:36:48,201 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 07:36:48,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:48,202 INFO L225 Difference]: With dead ends: 2164 [2021-11-07 07:36:48,202 INFO L226 Difference]: Without dead ends: 1819 [2021-11-07 07:36:48,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:36:48,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2021-11-07 07:36:48,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 611. [2021-11-07 07:36:48,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 600 states have (on average 1.3433333333333333) internal successors, (806), 610 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:48,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 806 transitions. [2021-11-07 07:36:48,563 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 806 transitions. Word has length 85 [2021-11-07 07:36:48,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:48,563 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 806 transitions. [2021-11-07 07:36:48,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:48,563 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 806 transitions. [2021-11-07 07:36:48,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:36:48,564 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:48,564 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:36:48,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-07 07:36:48,565 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:36:48,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1771865362, now seen corresponding path program 1 times [2021-11-07 07:36:48,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:48,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813845436] [2021-11-07 07:36:48,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:48,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:48,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:48,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:48,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813845436] [2021-11-07 07:36:48,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813845436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:36:48,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:36:48,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 07:36:48,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195884943] [2021-11-07 07:36:48,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 07:36:48,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:48,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 07:36:48,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:36:48,948 INFO L87 Difference]: Start difference. First operand 611 states and 806 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:52,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:52,840 INFO L93 Difference]: Finished difference Result 2922 states and 4181 transitions. [2021-11-07 07:36:52,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 07:36:52,841 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 07:36:52,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:52,843 INFO L225 Difference]: With dead ends: 2922 [2021-11-07 07:36:52,844 INFO L226 Difference]: Without dead ends: 2587 [2021-11-07 07:36:52,844 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:36:52,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2021-11-07 07:36:53,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 519. [2021-11-07 07:36:53,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 511 states have (on average 1.3385518590998042) internal successors, (684), 518 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 684 transitions. [2021-11-07 07:36:53,237 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 684 transitions. Word has length 85 [2021-11-07 07:36:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:53,237 INFO L470 AbstractCegarLoop]: Abstraction has 519 states and 684 transitions. [2021-11-07 07:36:53,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 684 transitions. [2021-11-07 07:36:53,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:36:53,238 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:53,238 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:36:53,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-07 07:36:53,239 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:36:53,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:53,239 INFO L85 PathProgramCache]: Analyzing trace with hash -249178582, now seen corresponding path program 1 times [2021-11-07 07:36:53,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:53,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474243462] [2021-11-07 07:36:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:53,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:54,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:54,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474243462] [2021-11-07 07:36:54,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474243462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:36:54,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:36:54,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 07:36:54,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639325193] [2021-11-07 07:36:54,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 07:36:54,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:54,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 07:36:54,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=721, Unknown=0, NotChecked=0, Total=812 [2021-11-07 07:36:54,602 INFO L87 Difference]: Start difference. First operand 519 states and 684 transitions. Second operand has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:01,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:01,346 INFO L93 Difference]: Finished difference Result 2176 states and 3002 transitions. [2021-11-07 07:37:01,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-07 07:37:01,347 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 07:37:01,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:01,348 INFO L225 Difference]: With dead ends: 2176 [2021-11-07 07:37:01,348 INFO L226 Difference]: Without dead ends: 1922 [2021-11-07 07:37:01,349 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=434, Invalid=2218, Unknown=0, NotChecked=0, Total=2652 [2021-11-07 07:37:01,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2021-11-07 07:37:01,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 536. [2021-11-07 07:37:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 528 states have (on average 1.3390151515151516) internal successors, (707), 535 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:01,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 707 transitions. [2021-11-07 07:37:01,751 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 707 transitions. Word has length 85 [2021-11-07 07:37:01,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:01,751 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 707 transitions. [2021-11-07 07:37:01,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:01,752 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 707 transitions. [2021-11-07 07:37:01,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:37:01,752 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:01,752 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:01,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-07 07:37:01,752 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:01,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:01,753 INFO L85 PathProgramCache]: Analyzing trace with hash 222420138, now seen corresponding path program 1 times [2021-11-07 07:37:01,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:01,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351538355] [2021-11-07 07:37:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:01,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:02,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:02,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351538355] [2021-11-07 07:37:02,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351538355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:02,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:02,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 07:37:02,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35162655] [2021-11-07 07:37:02,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:37:02,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:02,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:37:02,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:37:02,099 INFO L87 Difference]: Start difference. First operand 536 states and 707 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:04,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:04,134 INFO L93 Difference]: Finished difference Result 1681 states and 2362 transitions. [2021-11-07 07:37:04,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 07:37:04,134 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 07:37:04,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:04,136 INFO L225 Difference]: With dead ends: 1681 [2021-11-07 07:37:04,136 INFO L226 Difference]: Without dead ends: 1353 [2021-11-07 07:37:04,136 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:37:04,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2021-11-07 07:37:04,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 457. [2021-11-07 07:37:04,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 453 states have (on average 1.3554083885209713) internal successors, (614), 456 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:04,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 614 transitions. [2021-11-07 07:37:04,488 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 614 transitions. Word has length 85 [2021-11-07 07:37:04,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:04,488 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 614 transitions. [2021-11-07 07:37:04,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:04,488 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 614 transitions. [2021-11-07 07:37:04,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 07:37:04,488 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:04,489 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:04,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-07 07:37:04,489 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:04,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1172132150, now seen corresponding path program 1 times [2021-11-07 07:37:04,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:04,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857469042] [2021-11-07 07:37:04,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:04,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:05,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:05,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857469042] [2021-11-07 07:37:05,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857469042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:05,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:05,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-11-07 07:37:05,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990960053] [2021-11-07 07:37:05,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-07 07:37:05,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:05,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-07 07:37:05,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2021-11-07 07:37:05,734 INFO L87 Difference]: Start difference. First operand 457 states and 614 transitions. Second operand has 24 states, 24 states have (on average 3.5833333333333335) internal successors, (86), 24 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:10,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:10,222 INFO L93 Difference]: Finished difference Result 1596 states and 2232 transitions. [2021-11-07 07:37:10,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-07 07:37:10,223 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.5833333333333335) internal successors, (86), 24 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 07:37:10,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:10,224 INFO L225 Difference]: With dead ends: 1596 [2021-11-07 07:37:10,224 INFO L226 Difference]: Without dead ends: 1342 [2021-11-07 07:37:10,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=375, Invalid=1695, Unknown=0, NotChecked=0, Total=2070 [2021-11-07 07:37:10,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2021-11-07 07:37:10,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 471. [2021-11-07 07:37:10,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 467 states have (on average 1.3533190578158458) internal successors, (632), 470 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 632 transitions. [2021-11-07 07:37:10,570 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 632 transitions. Word has length 86 [2021-11-07 07:37:10,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:10,570 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 632 transitions. [2021-11-07 07:37:10,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.5833333333333335) internal successors, (86), 24 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:10,571 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 632 transitions. [2021-11-07 07:37:10,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 07:37:10,571 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:10,571 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:10,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-07 07:37:10,572 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:10,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:10,572 INFO L85 PathProgramCache]: Analyzing trace with hash 977256236, now seen corresponding path program 1 times [2021-11-07 07:37:10,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:10,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767172759] [2021-11-07 07:37:10,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:10,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:11,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:11,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:11,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767172759] [2021-11-07 07:37:11,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767172759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:11,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:11,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-07 07:37:11,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340533972] [2021-11-07 07:37:11,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 07:37:11,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:11,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 07:37:11,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:37:11,433 INFO L87 Difference]: Start difference. First operand 471 states and 632 transitions. Second operand has 21 states, 21 states have (on average 4.095238095238095) internal successors, (86), 21 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:14,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:14,956 INFO L93 Difference]: Finished difference Result 1509 states and 2113 transitions. [2021-11-07 07:37:14,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:37:14,957 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.095238095238095) internal successors, (86), 21 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 07:37:14,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:14,958 INFO L225 Difference]: With dead ends: 1509 [2021-11-07 07:37:14,958 INFO L226 Difference]: Without dead ends: 1255 [2021-11-07 07:37:14,959 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=295, Invalid=1265, Unknown=0, NotChecked=0, Total=1560 [2021-11-07 07:37:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-11-07 07:37:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 472. [2021-11-07 07:37:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 468 states have (on average 1.3525641025641026) internal successors, (633), 471 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:15,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 633 transitions. [2021-11-07 07:37:15,366 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 633 transitions. Word has length 86 [2021-11-07 07:37:15,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:15,366 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 633 transitions. [2021-11-07 07:37:15,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.095238095238095) internal successors, (86), 21 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:15,367 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 633 transitions. [2021-11-07 07:37:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 07:37:15,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:15,367 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:15,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-07 07:37:15,368 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:15,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:15,368 INFO L85 PathProgramCache]: Analyzing trace with hash 178624786, now seen corresponding path program 1 times [2021-11-07 07:37:15,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:15,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697359361] [2021-11-07 07:37:15,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:15,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:16,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:16,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697359361] [2021-11-07 07:37:16,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697359361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:16,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:16,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-07 07:37:16,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327719751] [2021-11-07 07:37:16,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 07:37:16,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:16,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 07:37:16,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-11-07 07:37:16,276 INFO L87 Difference]: Start difference. First operand 472 states and 633 transitions. Second operand has 20 states, 20 states have (on average 4.3) internal successors, (86), 20 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:23,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:23,058 INFO L93 Difference]: Finished difference Result 3345 states and 4841 transitions. [2021-11-07 07:37:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-07 07:37:23,059 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.3) internal successors, (86), 20 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 07:37:23,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:23,061 INFO L225 Difference]: With dead ends: 3345 [2021-11-07 07:37:23,061 INFO L226 Difference]: Without dead ends: 3074 [2021-11-07 07:37:23,062 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=308, Invalid=1332, Unknown=0, NotChecked=0, Total=1640 [2021-11-07 07:37:23,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2021-11-07 07:37:23,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 479. [2021-11-07 07:37:23,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 475 states have (on average 1.351578947368421) internal successors, (642), 478 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:23,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 642 transitions. [2021-11-07 07:37:23,446 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 642 transitions. Word has length 86 [2021-11-07 07:37:23,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:23,446 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 642 transitions. [2021-11-07 07:37:23,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.3) internal successors, (86), 20 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:23,447 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 642 transitions. [2021-11-07 07:37:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 07:37:23,447 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:23,447 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:23,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-07 07:37:23,447 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:23,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:23,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1864500596, now seen corresponding path program 1 times [2021-11-07 07:37:23,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:23,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161148671] [2021-11-07 07:37:23,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:23,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:23,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:23,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161148671] [2021-11-07 07:37:23,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161148671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:23,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:23,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-07 07:37:23,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218503866] [2021-11-07 07:37:23,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 07:37:23,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:23,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 07:37:23,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:37:23,968 INFO L87 Difference]: Start difference. First operand 479 states and 642 transitions. Second operand has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:27,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:27,783 INFO L93 Difference]: Finished difference Result 2407 states and 3456 transitions. [2021-11-07 07:37:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:37:27,783 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 07:37:27,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:27,785 INFO L225 Difference]: With dead ends: 2407 [2021-11-07 07:37:27,785 INFO L226 Difference]: Without dead ends: 2130 [2021-11-07 07:37:27,786 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=204, Invalid=788, Unknown=0, NotChecked=0, Total=992 [2021-11-07 07:37:27,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2021-11-07 07:37:28,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 459. [2021-11-07 07:37:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 455 states have (on average 1.3472527472527474) internal successors, (613), 458 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:28,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 613 transitions. [2021-11-07 07:37:28,189 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 613 transitions. Word has length 87 [2021-11-07 07:37:28,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:28,189 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 613 transitions. [2021-11-07 07:37:28,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:28,189 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 613 transitions. [2021-11-07 07:37:28,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 07:37:28,190 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:28,190 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:28,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-07 07:37:28,191 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash -309288342, now seen corresponding path program 1 times [2021-11-07 07:37:28,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:28,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234524085] [2021-11-07 07:37:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:28,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:28,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:28,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:28,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234524085] [2021-11-07 07:37:28,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234524085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:28,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:28,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 07:37:28,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902007144] [2021-11-07 07:37:28,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:37:28,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:28,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:37:28,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:37:28,346 INFO L87 Difference]: Start difference. First operand 459 states and 613 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:33,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:33,258 INFO L93 Difference]: Finished difference Result 3232 states and 4649 transitions. [2021-11-07 07:37:33,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:37:33,259 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 07:37:33,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:33,261 INFO L225 Difference]: With dead ends: 3232 [2021-11-07 07:37:33,261 INFO L226 Difference]: Without dead ends: 2948 [2021-11-07 07:37:33,262 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-07 07:37:33,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-11-07 07:37:33,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 464. [2021-11-07 07:37:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 460 states have (on average 1.3391304347826087) internal successors, (616), 463 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:33,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 616 transitions. [2021-11-07 07:37:33,644 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 616 transitions. Word has length 87 [2021-11-07 07:37:33,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:33,645 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 616 transitions. [2021-11-07 07:37:33,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:33,645 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 616 transitions. [2021-11-07 07:37:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 07:37:33,646 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:33,646 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:33,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-07 07:37:33,646 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash -795129630, now seen corresponding path program 1 times [2021-11-07 07:37:33,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:33,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409030843] [2021-11-07 07:37:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:33,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:34,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:34,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409030843] [2021-11-07 07:37:34,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409030843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:34,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:34,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-07 07:37:34,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624123261] [2021-11-07 07:37:34,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 07:37:34,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:34,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 07:37:34,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:37:34,587 INFO L87 Difference]: Start difference. First operand 464 states and 616 transitions. Second operand has 21 states, 21 states have (on average 4.142857142857143) internal successors, (87), 21 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:38,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:38,833 INFO L93 Difference]: Finished difference Result 1324 states and 1845 transitions. [2021-11-07 07:37:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 07:37:38,834 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.142857142857143) internal successors, (87), 21 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 07:37:38,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:38,835 INFO L225 Difference]: With dead ends: 1324 [2021-11-07 07:37:38,836 INFO L226 Difference]: Without dead ends: 1070 [2021-11-07 07:37:38,836 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=267, Invalid=1293, Unknown=0, NotChecked=0, Total=1560 [2021-11-07 07:37:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2021-11-07 07:37:39,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 436. [2021-11-07 07:37:39,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 433 states have (on average 1.3418013856812934) internal successors, (581), 435 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 581 transitions. [2021-11-07 07:37:39,217 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 581 transitions. Word has length 87 [2021-11-07 07:37:39,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:39,217 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 581 transitions. [2021-11-07 07:37:39,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.142857142857143) internal successors, (87), 21 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:39,217 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 581 transitions. [2021-11-07 07:37:39,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 07:37:39,218 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:39,218 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:39,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-11-07 07:37:39,218 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:39,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash -529290358, now seen corresponding path program 1 times [2021-11-07 07:37:39,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:39,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074762048] [2021-11-07 07:37:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:39,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:39,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:39,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074762048] [2021-11-07 07:37:39,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074762048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:39,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:39,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:37:39,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812973573] [2021-11-07 07:37:39,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:37:39,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:39,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:37:39,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:37:39,321 INFO L87 Difference]: Start difference. First operand 436 states and 581 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:40,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:40,594 INFO L93 Difference]: Finished difference Result 829 states and 1156 transitions. [2021-11-07 07:37:40,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 07:37:40,594 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2021-11-07 07:37:40,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:40,595 INFO L225 Difference]: With dead ends: 829 [2021-11-07 07:37:40,595 INFO L226 Difference]: Without dead ends: 821 [2021-11-07 07:37:40,595 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-11-07 07:37:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2021-11-07 07:37:40,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 436. [2021-11-07 07:37:40,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 433 states have (on average 1.3394919168591224) internal successors, (580), 435 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 580 transitions. [2021-11-07 07:37:40,976 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 580 transitions. Word has length 88 [2021-11-07 07:37:40,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:40,976 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 580 transitions. [2021-11-07 07:37:40,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:40,976 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 580 transitions. [2021-11-07 07:37:40,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 07:37:40,977 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:40,977 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:40,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-07 07:37:40,977 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:40,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:40,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1473532652, now seen corresponding path program 1 times [2021-11-07 07:37:40,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:40,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326972857] [2021-11-07 07:37:40,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:40,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:41,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:41,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326972857] [2021-11-07 07:37:41,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326972857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:41,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:41,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 07:37:41,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657573426] [2021-11-07 07:37:41,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:37:41,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:41,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:37:41,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:37:41,092 INFO L87 Difference]: Start difference. First operand 436 states and 580 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:42,289 INFO L93 Difference]: Finished difference Result 1046 states and 1453 transitions. [2021-11-07 07:37:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:37:42,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2021-11-07 07:37:42,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:42,291 INFO L225 Difference]: With dead ends: 1046 [2021-11-07 07:37:42,291 INFO L226 Difference]: Without dead ends: 762 [2021-11-07 07:37:42,291 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-11-07 07:37:42,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-11-07 07:37:42,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 431. [2021-11-07 07:37:42,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 428 states have (on average 1.338785046728972) internal successors, (573), 430 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:42,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 573 transitions. [2021-11-07 07:37:42,667 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 573 transitions. Word has length 88 [2021-11-07 07:37:42,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:42,667 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 573 transitions. [2021-11-07 07:37:42,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:42,667 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 573 transitions. [2021-11-07 07:37:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 07:37:42,667 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:42,667 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:42,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-11-07 07:37:42,668 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:42,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:42,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1594060367, now seen corresponding path program 1 times [2021-11-07 07:37:42,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:42,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491131022] [2021-11-07 07:37:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:42,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:43,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:43,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491131022] [2021-11-07 07:37:43,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491131022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:43,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:43,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-07 07:37:43,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402714348] [2021-11-07 07:37:43,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-07 07:37:43,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:43,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-07 07:37:43,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2021-11-07 07:37:43,642 INFO L87 Difference]: Start difference. First operand 431 states and 573 transitions. Second operand has 28 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:52,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:52,991 INFO L93 Difference]: Finished difference Result 4190 states and 6094 transitions. [2021-11-07 07:37:52,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-07 07:37:52,992 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2021-11-07 07:37:52,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:52,995 INFO L225 Difference]: With dead ends: 4190 [2021-11-07 07:37:52,995 INFO L226 Difference]: Without dead ends: 4184 [2021-11-07 07:37:52,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=490, Invalid=2480, Unknown=0, NotChecked=0, Total=2970 [2021-11-07 07:37:52,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4184 states. [2021-11-07 07:37:53,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4184 to 456. [2021-11-07 07:37:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 453 states have (on average 1.3311258278145695) internal successors, (603), 455 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:53,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 603 transitions. [2021-11-07 07:37:53,431 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 603 transitions. Word has length 89 [2021-11-07 07:37:53,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:53,431 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 603 transitions. [2021-11-07 07:37:53,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:53,432 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 603 transitions. [2021-11-07 07:37:53,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 07:37:53,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:53,432 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:53,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-11-07 07:37:53,432 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:37:53,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:53,433 INFO L85 PathProgramCache]: Analyzing trace with hash 916649711, now seen corresponding path program 1 times [2021-11-07 07:37:53,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:53,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276181319] [2021-11-07 07:37:53,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:53,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:54,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:54,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276181319] [2021-11-07 07:37:54,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276181319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:37:54,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:37:54,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-11-07 07:37:54,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393264028] [2021-11-07 07:37:54,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 07:37:54,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:54,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 07:37:54,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:37:54,355 INFO L87 Difference]: Start difference. First operand 456 states and 603 transitions. Second operand has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:01,952 INFO L93 Difference]: Finished difference Result 3033 states and 4355 transitions. [2021-11-07 07:38:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-07 07:38:01,953 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-11-07 07:38:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:01,956 INFO L225 Difference]: With dead ends: 3033 [2021-11-07 07:38:01,956 INFO L226 Difference]: Without dead ends: 3027 [2021-11-07 07:38:01,957 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=370, Invalid=1610, Unknown=0, NotChecked=0, Total=1980 [2021-11-07 07:38:01,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2021-11-07 07:38:02,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 476. [2021-11-07 07:38:02,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 473 states have (on average 1.3255813953488371) internal successors, (627), 475 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 627 transitions. [2021-11-07 07:38:02,428 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 627 transitions. Word has length 90 [2021-11-07 07:38:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:02,429 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 627 transitions. [2021-11-07 07:38:02,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 627 transitions. [2021-11-07 07:38:02,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 07:38:02,430 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:02,430 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:02,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-11-07 07:38:02,430 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:02,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:02,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1220515409, now seen corresponding path program 1 times [2021-11-07 07:38:02,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:02,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766221903] [2021-11-07 07:38:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:02,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:03,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:03,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:03,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766221903] [2021-11-07 07:38:03,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766221903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:03,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:03,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-11-07 07:38:03,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703941191] [2021-11-07 07:38:03,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 07:38:03,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:03,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 07:38:03,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:38:03,296 INFO L87 Difference]: Start difference. First operand 476 states and 627 transitions. Second operand has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:07,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:07,725 INFO L93 Difference]: Finished difference Result 1437 states and 1996 transitions. [2021-11-07 07:38:07,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-07 07:38:07,725 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-11-07 07:38:07,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:07,726 INFO L225 Difference]: With dead ends: 1437 [2021-11-07 07:38:07,726 INFO L226 Difference]: Without dead ends: 1428 [2021-11-07 07:38:07,727 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=383, Invalid=1597, Unknown=0, NotChecked=0, Total=1980 [2021-11-07 07:38:07,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2021-11-07 07:38:08,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 480. [2021-11-07 07:38:08,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 477 states have (on average 1.3249475890985325) internal successors, (632), 479 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:08,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 632 transitions. [2021-11-07 07:38:08,171 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 632 transitions. Word has length 90 [2021-11-07 07:38:08,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:08,171 INFO L470 AbstractCegarLoop]: Abstraction has 480 states and 632 transitions. [2021-11-07 07:38:08,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:08,171 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 632 transitions. [2021-11-07 07:38:08,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 07:38:08,172 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:08,172 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:08,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-11-07 07:38:08,172 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:08,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:08,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1292581870, now seen corresponding path program 1 times [2021-11-07 07:38:08,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:08,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849666842] [2021-11-07 07:38:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:08,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:08,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:08,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849666842] [2021-11-07 07:38:08,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849666842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:08,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:08,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-07 07:38:08,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761068503] [2021-11-07 07:38:08,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 07:38:08,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:08,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 07:38:08,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:38:08,872 INFO L87 Difference]: Start difference. First operand 480 states and 632 transitions. Second operand has 21 states, 21 states have (on average 4.285714285714286) internal successors, (90), 21 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:14,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:14,621 INFO L93 Difference]: Finished difference Result 2399 states and 3416 transitions. [2021-11-07 07:38:14,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-07 07:38:14,621 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.285714285714286) internal successors, (90), 21 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-11-07 07:38:14,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:14,623 INFO L225 Difference]: With dead ends: 2399 [2021-11-07 07:38:14,623 INFO L226 Difference]: Without dead ends: 2393 [2021-11-07 07:38:14,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=344, Invalid=1462, Unknown=0, NotChecked=0, Total=1806 [2021-11-07 07:38:14,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2021-11-07 07:38:15,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 489. [2021-11-07 07:38:15,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 486 states have (on average 1.323045267489712) internal successors, (643), 488 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:15,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 643 transitions. [2021-11-07 07:38:15,082 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 643 transitions. Word has length 90 [2021-11-07 07:38:15,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:15,083 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 643 transitions. [2021-11-07 07:38:15,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.285714285714286) internal successors, (90), 21 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:15,083 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 643 transitions. [2021-11-07 07:38:15,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 07:38:15,083 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:15,083 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:15,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-11-07 07:38:15,084 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:15,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1536654647, now seen corresponding path program 1 times [2021-11-07 07:38:15,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:15,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031946270] [2021-11-07 07:38:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:15,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:16,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:16,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031946270] [2021-11-07 07:38:16,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031946270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:16,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:16,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-11-07 07:38:16,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348441688] [2021-11-07 07:38:16,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 07:38:16,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:16,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 07:38:16,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:38:16,130 INFO L87 Difference]: Start difference. First operand 489 states and 643 transitions. Second operand has 25 states, 25 states have (on average 3.6) internal successors, (90), 25 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:25,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:25,839 INFO L93 Difference]: Finished difference Result 3834 states and 5546 transitions. [2021-11-07 07:38:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-07 07:38:25,840 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.6) internal successors, (90), 25 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-11-07 07:38:25,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:25,843 INFO L225 Difference]: With dead ends: 3834 [2021-11-07 07:38:25,843 INFO L226 Difference]: Without dead ends: 3828 [2021-11-07 07:38:25,844 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=445, Invalid=2311, Unknown=0, NotChecked=0, Total=2756 [2021-11-07 07:38:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2021-11-07 07:38:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 495. [2021-11-07 07:38:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 492 states have (on average 1.3211382113821137) internal successors, (650), 494 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 650 transitions. [2021-11-07 07:38:26,340 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 650 transitions. Word has length 90 [2021-11-07 07:38:26,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:26,340 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 650 transitions. [2021-11-07 07:38:26,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.6) internal successors, (90), 25 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:26,340 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 650 transitions. [2021-11-07 07:38:26,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 07:38:26,340 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:26,341 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:26,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-11-07 07:38:26,341 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:26,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:26,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1767688014, now seen corresponding path program 1 times [2021-11-07 07:38:26,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:26,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451220220] [2021-11-07 07:38:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:26,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:26,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:26,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451220220] [2021-11-07 07:38:26,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451220220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:26,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:26,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 07:38:26,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119517967] [2021-11-07 07:38:26,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 07:38:26,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:26,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 07:38:26,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:38:26,669 INFO L87 Difference]: Start difference. First operand 495 states and 650 transitions. Second operand has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:29,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:29,357 INFO L93 Difference]: Finished difference Result 1545 states and 2191 transitions. [2021-11-07 07:38:29,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 07:38:29,357 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-11-07 07:38:29,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:29,358 INFO L225 Difference]: With dead ends: 1545 [2021-11-07 07:38:29,358 INFO L226 Difference]: Without dead ends: 1539 [2021-11-07 07:38:29,359 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:38:29,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2021-11-07 07:38:29,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 448. [2021-11-07 07:38:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 446 states have (on average 1.3251121076233183) internal successors, (591), 447 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 591 transitions. [2021-11-07 07:38:29,807 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 591 transitions. Word has length 91 [2021-11-07 07:38:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:29,807 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 591 transitions. [2021-11-07 07:38:29,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 591 transitions. [2021-11-07 07:38:29,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 07:38:29,808 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:29,808 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:29,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-11-07 07:38:29,808 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:29,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:29,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1103606004, now seen corresponding path program 1 times [2021-11-07 07:38:29,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:29,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817055439] [2021-11-07 07:38:29,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:29,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:30,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:30,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817055439] [2021-11-07 07:38:30,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817055439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:30,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:30,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-07 07:38:30,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333542641] [2021-11-07 07:38:30,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 07:38:30,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:30,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 07:38:30,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-11-07 07:38:30,320 INFO L87 Difference]: Start difference. First operand 448 states and 591 transitions. Second operand has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:33,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:33,407 INFO L93 Difference]: Finished difference Result 1131 states and 1587 transitions. [2021-11-07 07:38:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 07:38:33,408 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-11-07 07:38:33,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:33,409 INFO L225 Difference]: With dead ends: 1131 [2021-11-07 07:38:33,409 INFO L226 Difference]: Without dead ends: 1115 [2021-11-07 07:38:33,409 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=905, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 07:38:33,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2021-11-07 07:38:33,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 405. [2021-11-07 07:38:33,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 1.3415841584158417) internal successors, (542), 404 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:33,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 542 transitions. [2021-11-07 07:38:33,824 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 542 transitions. Word has length 91 [2021-11-07 07:38:33,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:33,824 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 542 transitions. [2021-11-07 07:38:33,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:33,825 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 542 transitions. [2021-11-07 07:38:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-07 07:38:33,825 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:33,825 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:33,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-11-07 07:38:33,826 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:33,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1829574929, now seen corresponding path program 1 times [2021-11-07 07:38:33,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:33,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496335944] [2021-11-07 07:38:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:33,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:33,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:33,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:33,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496335944] [2021-11-07 07:38:33,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496335944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:33,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:33,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:38:33,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396721467] [2021-11-07 07:38:33,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:38:33,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:33,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:38:33,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:38:33,879 INFO L87 Difference]: Start difference. First operand 405 states and 542 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:34,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:34,720 INFO L93 Difference]: Finished difference Result 889 states and 1256 transitions. [2021-11-07 07:38:34,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:38:34,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-11-07 07:38:34,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:34,721 INFO L225 Difference]: With dead ends: 889 [2021-11-07 07:38:34,721 INFO L226 Difference]: Without dead ends: 639 [2021-11-07 07:38:34,722 INFO L786 BasicCegarLoop]: 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 [2021-11-07 07:38:34,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2021-11-07 07:38:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 637. [2021-11-07 07:38:35,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 636 states have (on average 1.380503144654088) internal successors, (878), 636 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 878 transitions. [2021-11-07 07:38:35,476 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 878 transitions. Word has length 118 [2021-11-07 07:38:35,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:35,476 INFO L470 AbstractCegarLoop]: Abstraction has 637 states and 878 transitions. [2021-11-07 07:38:35,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:35,477 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 878 transitions. [2021-11-07 07:38:35,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 07:38:35,477 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:35,478 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:35,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-11-07 07:38:35,478 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:35,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:35,478 INFO L85 PathProgramCache]: Analyzing trace with hash -58815912, now seen corresponding path program 1 times [2021-11-07 07:38:35,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:35,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317879970] [2021-11-07 07:38:35,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:35,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:35,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:35,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:35,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317879970] [2021-11-07 07:38:35,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317879970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:35,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:35,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:38:35,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424326535] [2021-11-07 07:38:35,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:38:35,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:35,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:38:35,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:38:35,530 INFO L87 Difference]: Start difference. First operand 637 states and 878 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:39,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:39,210 INFO L93 Difference]: Finished difference Result 2893 states and 4170 transitions. [2021-11-07 07:38:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:38:39,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-07 07:38:39,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:39,213 INFO L225 Difference]: With dead ends: 2893 [2021-11-07 07:38:39,213 INFO L226 Difference]: Without dead ends: 2411 [2021-11-07 07:38:39,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:38:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2411 states. [2021-11-07 07:38:40,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2411 to 1157. [2021-11-07 07:38:40,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.4134948096885813) internal successors, (1634), 1156 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1634 transitions. [2021-11-07 07:38:40,792 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1634 transitions. Word has length 120 [2021-11-07 07:38:40,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:40,792 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1634 transitions. [2021-11-07 07:38:40,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:40,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1634 transitions. [2021-11-07 07:38:40,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 07:38:40,793 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:40,794 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:40,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-11-07 07:38:40,794 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:40,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:40,794 INFO L85 PathProgramCache]: Analyzing trace with hash 209861823, now seen corresponding path program 1 times [2021-11-07 07:38:40,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:40,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340586307] [2021-11-07 07:38:40,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:40,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:40,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:40,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340586307] [2021-11-07 07:38:40,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340586307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:40,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:40,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:38:40,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201442521] [2021-11-07 07:38:40,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:38:40,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:40,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:38:40,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:38:40,834 INFO L87 Difference]: Start difference. First operand 1157 states and 1634 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:43,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:43,884 INFO L93 Difference]: Finished difference Result 3081 states and 4420 transitions. [2021-11-07 07:38:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:38:43,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-07 07:38:43,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:43,886 INFO L225 Difference]: With dead ends: 3081 [2021-11-07 07:38:43,886 INFO L226 Difference]: Without dead ends: 2079 [2021-11-07 07:38:43,887 INFO L786 BasicCegarLoop]: 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 [2021-11-07 07:38:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2021-11-07 07:38:46,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 2077. [2021-11-07 07:38:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 2076 states have (on average 1.4152215799614642) internal successors, (2938), 2076 states have internal predecessors, (2938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2938 transitions. [2021-11-07 07:38:46,929 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2938 transitions. Word has length 120 [2021-11-07 07:38:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:46,929 INFO L470 AbstractCegarLoop]: Abstraction has 2077 states and 2938 transitions. [2021-11-07 07:38:46,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2938 transitions. [2021-11-07 07:38:46,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 07:38:46,932 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:46,932 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:46,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-11-07 07:38:46,933 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:46,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:46,933 INFO L85 PathProgramCache]: Analyzing trace with hash 276355335, now seen corresponding path program 1 times [2021-11-07 07:38:46,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:46,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679187190] [2021-11-07 07:38:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:46,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:46,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:46,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679187190] [2021-11-07 07:38:46,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679187190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:46,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:46,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:38:46,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487025028] [2021-11-07 07:38:46,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:38:46,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:46,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:38:46,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:38:46,994 INFO L87 Difference]: Start difference. First operand 2077 states and 2938 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:51,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:51,582 INFO L93 Difference]: Finished difference Result 4977 states and 7108 transitions. [2021-11-07 07:38:51,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:38:51,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-07 07:38:51,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:51,585 INFO L225 Difference]: With dead ends: 4977 [2021-11-07 07:38:51,586 INFO L226 Difference]: Without dead ends: 3055 [2021-11-07 07:38:51,587 INFO L786 BasicCegarLoop]: 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 [2021-11-07 07:38:51,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2021-11-07 07:38:56,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 3053. [2021-11-07 07:38:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 3052 states have (on average 1.4161205766710354) internal successors, (4322), 3052 states have internal predecessors, (4322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 4322 transitions. [2021-11-07 07:38:56,055 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 4322 transitions. Word has length 120 [2021-11-07 07:38:56,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:56,055 INFO L470 AbstractCegarLoop]: Abstraction has 3053 states and 4322 transitions. [2021-11-07 07:38:56,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:56,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 4322 transitions. [2021-11-07 07:38:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 07:38:56,057 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:56,057 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:56,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-11-07 07:38:56,057 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:38:56,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash -755626408, now seen corresponding path program 1 times [2021-11-07 07:38:56,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:56,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71705160] [2021-11-07 07:38:56,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:56,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:56,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:56,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71705160] [2021-11-07 07:38:56,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71705160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:38:56,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:38:56,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:38:56,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469630561] [2021-11-07 07:38:56,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:38:56,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:56,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:38:56,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:38:56,105 INFO L87 Difference]: Start difference. First operand 3053 states and 4322 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:39:15,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:39:15,811 INFO L93 Difference]: Finished difference Result 14741 states and 20838 transitions. [2021-11-07 07:39:15,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:39:15,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-07 07:39:15,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:39:15,824 INFO L225 Difference]: With dead ends: 14741 [2021-11-07 07:39:15,824 INFO L226 Difference]: Without dead ends: 11843 [2021-11-07 07:39:15,827 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:39:15,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11843 states. [2021-11-07 07:39:26,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11843 to 6189. [2021-11-07 07:39:26,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6189 states, 6188 states have (on average 1.415966386554622) internal successors, (8762), 6188 states have internal predecessors, (8762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:39:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6189 states to 6189 states and 8762 transitions. [2021-11-07 07:39:26,309 INFO L78 Accepts]: Start accepts. Automaton has 6189 states and 8762 transitions. Word has length 120 [2021-11-07 07:39:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:39:26,309 INFO L470 AbstractCegarLoop]: Abstraction has 6189 states and 8762 transitions. [2021-11-07 07:39:26,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:39:26,309 INFO L276 IsEmpty]: Start isEmpty. Operand 6189 states and 8762 transitions. [2021-11-07 07:39:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 07:39:26,311 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:39:26,311 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:39:26,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-11-07 07:39:26,312 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:39:26,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:39:26,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1539427416, now seen corresponding path program 1 times [2021-11-07 07:39:26,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:39:26,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177049789] [2021-11-07 07:39:26,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:39:26,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:39:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:39:26,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:39:26,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:39:26,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177049789] [2021-11-07 07:39:26,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177049789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:39:26,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:39:26,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:39:26,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145536906] [2021-11-07 07:39:26,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:39:26,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:39:26,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:39:26,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:39:26,364 INFO L87 Difference]: Start difference. First operand 6189 states and 8762 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:40:01,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:40:01,915 INFO L93 Difference]: Finished difference Result 26117 states and 36990 transitions. [2021-11-07 07:40:01,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:40:01,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-07 07:40:01,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:40:01,944 INFO L225 Difference]: With dead ends: 26117 [2021-11-07 07:40:01,944 INFO L226 Difference]: Without dead ends: 20083 [2021-11-07 07:40:01,953 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:40:01,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20083 states. [2021-11-07 07:40:23,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20083 to 12605. [2021-11-07 07:40:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12605 states, 12604 states have (on average 1.4073310060298319) internal successors, (17738), 12604 states have internal predecessors, (17738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:40:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12605 states to 12605 states and 17738 transitions. [2021-11-07 07:40:23,235 INFO L78 Accepts]: Start accepts. Automaton has 12605 states and 17738 transitions. Word has length 120 [2021-11-07 07:40:23,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:40:23,236 INFO L470 AbstractCegarLoop]: Abstraction has 12605 states and 17738 transitions. [2021-11-07 07:40:23,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:40:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 12605 states and 17738 transitions. [2021-11-07 07:40:23,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 07:40:23,239 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:40:23,239 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:40:23,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-11-07 07:40:23,239 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:40:23,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:40:23,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1420576856, now seen corresponding path program 1 times [2021-11-07 07:40:23,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:40:23,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612437020] [2021-11-07 07:40:23,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:40:23,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:40:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:40:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:40:23,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:40:23,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612437020] [2021-11-07 07:40:23,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612437020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:40:23,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:40:23,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:40:23,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917816524] [2021-11-07 07:40:23,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:40:23,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:40:23,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:40:23,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:40:23,300 INFO L87 Difference]: Start difference. First operand 12605 states and 17738 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:41:18,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:41:18,517 INFO L93 Difference]: Finished difference Result 47709 states and 67202 transitions. [2021-11-07 07:41:18,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:41:18,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-07 07:41:18,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:41:18,562 INFO L225 Difference]: With dead ends: 47709 [2021-11-07 07:41:18,562 INFO L226 Difference]: Without dead ends: 35259 [2021-11-07 07:41:18,576 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:41:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35259 states. [2021-11-07 07:41:48,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35259 to 20253. [2021-11-07 07:41:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20253 states, 20252 states have (on average 1.3957140035552045) internal successors, (28266), 20252 states have internal predecessors, (28266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:41:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20253 states to 20253 states and 28266 transitions. [2021-11-07 07:41:48,974 INFO L78 Accepts]: Start accepts. Automaton has 20253 states and 28266 transitions. Word has length 120 [2021-11-07 07:41:48,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:41:48,975 INFO L470 AbstractCegarLoop]: Abstraction has 20253 states and 28266 transitions. [2021-11-07 07:41:48,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:41:48,975 INFO L276 IsEmpty]: Start isEmpty. Operand 20253 states and 28266 transitions. [2021-11-07 07:41:48,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 07:41:48,978 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:41:48,979 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:41:48,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-11-07 07:41:48,979 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:41:48,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:41:48,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1137378904, now seen corresponding path program 1 times [2021-11-07 07:41:48,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:41:48,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338403648] [2021-11-07 07:41:48,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:41:48,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:41:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:41:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:41:49,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:41:49,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338403648] [2021-11-07 07:41:49,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338403648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:41:49,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:41:49,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:41:49,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873671606] [2021-11-07 07:41:49,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:41:49,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:41:49,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:41:49,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:41:49,024 INFO L87 Difference]: Start difference. First operand 20253 states and 28266 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:42:58,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:42:58,252 INFO L93 Difference]: Finished difference Result 63525 states and 87854 transitions. [2021-11-07 07:42:58,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:42:58,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-07 07:42:58,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:42:58,308 INFO L225 Difference]: With dead ends: 63525 [2021-11-07 07:42:58,308 INFO L226 Difference]: Without dead ends: 43427 [2021-11-07 07:42:58,328 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:42:58,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43427 states. [2021-11-07 07:43:37,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43427 to 24413. [2021-11-07 07:43:37,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24413 states, 24412 states have (on average 1.3623627724070129) internal successors, (33258), 24412 states have internal predecessors, (33258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:37,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24413 states to 24413 states and 33258 transitions. [2021-11-07 07:43:37,789 INFO L78 Accepts]: Start accepts. Automaton has 24413 states and 33258 transitions. Word has length 120 [2021-11-07 07:43:37,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:37,789 INFO L470 AbstractCegarLoop]: Abstraction has 24413 states and 33258 transitions. [2021-11-07 07:43:37,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:43:37,789 INFO L276 IsEmpty]: Start isEmpty. Operand 24413 states and 33258 transitions. [2021-11-07 07:43:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-07 07:43:37,793 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:37,794 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:37,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-11-07 07:43:37,794 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:43:37,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2068457782, now seen corresponding path program 1 times [2021-11-07 07:43:37,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:43:37,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170818862] [2021-11-07 07:43:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:37,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:43:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:37,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:43:37,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170818862] [2021-11-07 07:43:37,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170818862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:37,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:37,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:43:37,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788609092] [2021-11-07 07:43:37,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:43:37,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:43:37,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:43:37,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:43:37,857 INFO L87 Difference]: Start difference. First operand 24413 states and 33258 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:44:18,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:18,163 INFO L93 Difference]: Finished difference Result 47905 states and 65196 transitions. [2021-11-07 07:44:18,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:44:18,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-11-07 07:44:18,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:18,191 INFO L225 Difference]: With dead ends: 47905 [2021-11-07 07:44:18,191 INFO L226 Difference]: Without dead ends: 23647 [2021-11-07 07:44:18,208 INFO L786 BasicCegarLoop]: 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 [2021-11-07 07:44:18,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23647 states. [2021-11-07 07:44:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23647 to 21853. [2021-11-07 07:44:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21853 states, 21852 states have (on average 1.3564891085484165) internal successors, (29642), 21852 states have internal predecessors, (29642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:44:52,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21853 states to 21853 states and 29642 transitions. [2021-11-07 07:44:52,792 INFO L78 Accepts]: Start accepts. Automaton has 21853 states and 29642 transitions. Word has length 121 [2021-11-07 07:44:52,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:52,793 INFO L470 AbstractCegarLoop]: Abstraction has 21853 states and 29642 transitions. [2021-11-07 07:44:52,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:44:52,793 INFO L276 IsEmpty]: Start isEmpty. Operand 21853 states and 29642 transitions. [2021-11-07 07:44:52,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-07 07:44:52,796 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:52,796 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:52,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-11-07 07:44:52,796 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 07:44:52,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:52,797 INFO L85 PathProgramCache]: Analyzing trace with hash -969611133, now seen corresponding path program 1 times [2021-11-07 07:44:52,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:44:52,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240956788] [2021-11-07 07:44:52,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:52,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:44:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:44:52,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:44:52,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240956788] [2021-11-07 07:44:52,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240956788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:52,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:52,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:44:52,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514974318] [2021-11-07 07:44:52,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:44:52,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:44:52,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:44:52,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:44:52,849 INFO L87 Difference]: Start difference. First operand 21853 states and 29642 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)