/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_bench_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 06:40:37,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 06:40:37,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 06:40:37,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-06 06:40:37,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-06 06:40:37,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-06 06:40:37,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-06 06:40:37,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-06 06:40:37,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-06 06:40:37,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-06 06:40:37,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-06 06:40:37,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-06 06:40:37,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 06:40:37,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 06:40:37,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 06:40:37,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 06:40:37,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 06:40:37,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 06:40:37,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 06:40:37,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 06:40:37,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 06:40:37,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 06:40:37,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 06:40:37,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 06:40:37,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-06 06:40:37,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-06 06:40:37,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-06 06:40:37,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-06 06:40:37,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-06 06:40:37,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-06 06:40:37,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-06 06:40:37,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-06 06:40:37,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-06 06:40:37,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-06 06:40:37,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-06 06:40:37,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-06 06:40:37,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-06 06:40:37,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-06 06:40:37,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 06:40:37,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 06:40:37,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 06:40:37,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf [2021-06-06 06:40:37,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 06:40:37,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 06:40:37,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 06:40:37,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 06:40:37,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 06:40:37,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 06:40:37,505 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 06:40:37,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 06:40:37,505 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 06:40:37,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 06:40:37,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 06:40:37,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 06:40:37,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 06:40:37,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 06:40:37,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 06:40:37,506 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 06:40:37,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 06:40:37,506 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 06:40:37,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 06:40:37,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 06:40:37,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 06:40:37,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 06:40:37,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 06:40:37,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 06:40:37,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 06:40:37,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 06:40:37,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 06:40:37,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 06:40:37,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 06:40:37,508 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 06:40:37,508 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 06:40:37,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 06:40:37,508 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 06:40:37,508 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 06:40:37,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 06:40:37,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 06:40:37,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 06:40:37,784 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-06 06:40:37,785 INFO L275 PluginConnector]: CDTParser initialized [2021-06-06 06:40:37,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench_longest-1.i [2021-06-06 06:40:37,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7d12dbb/07195d26178b4e5e989c2c088cfaaca1/FLAG4ae82f211 [2021-06-06 06:40:38,270 INFO L306 CDTParser]: Found 1 translation units. [2021-06-06 06:40:38,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i [2021-06-06 06:40:38,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7d12dbb/07195d26178b4e5e989c2c088cfaaca1/FLAG4ae82f211 [2021-06-06 06:40:38,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7d12dbb/07195d26178b4e5e989c2c088cfaaca1 [2021-06-06 06:40:38,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 06:40:38,643 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-06 06:40:38,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-06 06:40:38,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-06 06:40:38,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-06 06:40:38,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.06 06:40:38" (1/1) ... [2021-06-06 06:40:38,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b257b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:38, skipping insertion in model container [2021-06-06 06:40:38,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.06 06:40:38" (1/1) ... [2021-06-06 06:40:38,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-06 06:40:38,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-06 06:40:38,947 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i[30286,30299] [2021-06-06 06:40:38,990 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i[31038,31051] [2021-06-06 06:40:38,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-06 06:40:39,000 INFO L203 MainTranslator]: Completed pre-run [2021-06-06 06:40:39,028 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i[30286,30299] [2021-06-06 06:40:39,031 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longest-1.i[31038,31051] [2021-06-06 06:40:39,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-06 06:40:39,081 INFO L208 MainTranslator]: Completed translation [2021-06-06 06:40:39,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39 WrapperNode [2021-06-06 06:40:39,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-06 06:40:39,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 06:40:39,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 06:40:39,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 06:40:39,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... [2021-06-06 06:40:39,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... [2021-06-06 06:40:39,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 06:40:39,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 06:40:39,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 06:40:39,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 06:40:39,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... [2021-06-06 06:40:39,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... [2021-06-06 06:40:39,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... [2021-06-06 06:40:39,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... [2021-06-06 06:40:39,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... [2021-06-06 06:40:39,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... [2021-06-06 06:40:39,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... [2021-06-06 06:40:39,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 06:40:39,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 06:40:39,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 06:40:39,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 06:40:39,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 06:40:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-06-06 06:40:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-06-06 06:40:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-06-06 06:40:39,221 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-06-06 06:40:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-06 06:40:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-06 06:40:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-06 06:40:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-06 06:40:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-06 06:40:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-06 06:40:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 06:40:39,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 06:40:39,223 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 06:40:39,456 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 06:40:39,456 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-06 06:40:39,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 06:40:39 BoogieIcfgContainer [2021-06-06 06:40:39,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 06:40:39,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 06:40:39,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 06:40:39,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 06:40:39,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.06 06:40:38" (1/3) ... [2021-06-06 06:40:39,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73171e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 06:40:39, skipping insertion in model container [2021-06-06 06:40:39,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.06 06:40:39" (2/3) ... [2021-06-06 06:40:39,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73171e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 06:40:39, skipping insertion in model container [2021-06-06 06:40:39,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 06:40:39" (3/3) ... [2021-06-06 06:40:39,462 INFO L111 eAbstractionObserver]: Analyzing ICFG fib_bench_longest-1.i [2021-06-06 06:40:39,466 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 06:40:39,466 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 06:40:39,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 06:40:39,467 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 06:40:39,499 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,499 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,499 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,499 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,499 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,500 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,500 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,500 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,500 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,500 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,500 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,500 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,500 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,501 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,501 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,501 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,501 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,501 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,501 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,501 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,501 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,502 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,502 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,502 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,502 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,502 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,502 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,502 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,502 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,502 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,503 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,503 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,503 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,503 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,503 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,503 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,503 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,503 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,503 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,504 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,504 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,504 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,504 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,504 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,504 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,504 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,504 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,504 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,505 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,505 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,505 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,506 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,507 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,507 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,507 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,507 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,508 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,508 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,511 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,511 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,511 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,511 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,511 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,512 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 06:40:39,513 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-06 06:40:39,527 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 06:40:39,554 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 06:40:39,554 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 06:40:39,554 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 06:40:39,555 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 06:40:39,555 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 06:40:39,555 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 06:40:39,555 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 06:40:39,555 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 06:40:39,577 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:39,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:39,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1821028685, now seen corresponding path program 1 times [2021-06-06 06:40:39,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:39,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575068145] [2021-06-06 06:40:39,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:39,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:39,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575068145] [2021-06-06 06:40:39,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575068145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 06:40:39,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 06:40:39,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-06 06:40:39,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872704159] [2021-06-06 06:40:39,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-06 06:40:39,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:39,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-06 06:40:39,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-06 06:40:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:39,719 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:39,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:39,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:39,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:39,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 06:40:39,732 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:39,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:39,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1624515180, now seen corresponding path program 1 times [2021-06-06 06:40:39,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:39,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876135525] [2021-06-06 06:40:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:39,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:39,804 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:39,804 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876135525] [2021-06-06 06:40:39,804 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876135525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 06:40:39,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 06:40:39,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 06:40:39,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544124367] [2021-06-06 06:40:39,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 06:40:39,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:39,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 06:40:39,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 06:40:39,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:39,806 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:39,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:39,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:39,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:39,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:39,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:39,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 06:40:39,826 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:39,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:39,826 INFO L82 PathProgramCache]: Analyzing trace with hash -348762951, now seen corresponding path program 1 times [2021-06-06 06:40:39,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:39,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83093709] [2021-06-06 06:40:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:39,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:39,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:39,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83093709] [2021-06-06 06:40:39,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83093709] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:39,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401786746] [2021-06-06 06:40:39,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:40,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-06 06:40:40,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:40,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401786746] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:40,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:40,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-06 06:40:40,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676333964] [2021-06-06 06:40:40,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-06 06:40:40,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:40,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-06 06:40:40,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-06 06:40:40,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:40,164 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:40,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:40,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:40,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:40,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:40,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:40,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:40,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:40,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:40,429 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:40,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:40,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1123841396, now seen corresponding path program 2 times [2021-06-06 06:40:40,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:40,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970724584] [2021-06-06 06:40:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:40,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:40,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:40,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970724584] [2021-06-06 06:40:40,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970724584] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:40,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064755220] [2021-06-06 06:40:40,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:40,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 06:40:40,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:40,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-06 06:40:40,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:40,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064755220] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:40,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:40,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-06 06:40:40,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644608209] [2021-06-06 06:40:40,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-06 06:40:40,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:40,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-06 06:40:40,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-06 06:40:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:40,701 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:40,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:40,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:40,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:40,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:40,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:40,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:40,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:40,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:40,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:40,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:40,979 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:40,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:40,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2096957287, now seen corresponding path program 3 times [2021-06-06 06:40:40,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:40,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418211493] [2021-06-06 06:40:40,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:41,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:41,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418211493] [2021-06-06 06:40:41,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418211493] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:41,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772692127] [2021-06-06 06:40:41,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:41,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-06 06:40:41,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:41,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-06 06:40:41,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:41,268 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:41,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772692127] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:41,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:41,269 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-06-06 06:40:41,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337377805] [2021-06-06 06:40:41,270 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 06:40:41,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:41,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 06:40:41,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-06-06 06:40:41,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:41,271 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:41,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:41,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:41,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:41,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:41,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:41,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:41,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:41,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:41,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:41,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:41,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:41,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:41,569 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:41,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:41,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1873234604, now seen corresponding path program 4 times [2021-06-06 06:40:41,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:41,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824763904] [2021-06-06 06:40:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:41,681 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:41,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:41,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824763904] [2021-06-06 06:40:41,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824763904] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:41,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218419639] [2021-06-06 06:40:41,681 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:41,740 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 06:40:41,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:41,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 06:40:41,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:41,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218419639] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:41,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:41,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-06 06:40:41,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297714618] [2021-06-06 06:40:41,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-06 06:40:41,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:41,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-06 06:40:41,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-06 06:40:41,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:41,839 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:41,839 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:41,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:41,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:41,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:41,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:41,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:41,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:41,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:41,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:42,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-06 06:40:42,152 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:42,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:42,152 INFO L82 PathProgramCache]: Analyzing trace with hash -682472327, now seen corresponding path program 5 times [2021-06-06 06:40:42,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:42,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862410205] [2021-06-06 06:40:42,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:42,325 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:42,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:42,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862410205] [2021-06-06 06:40:42,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862410205] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:42,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814768395] [2021-06-06 06:40:42,326 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:42,400 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 06:40:42,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:42,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-06 06:40:42,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:42,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814768395] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:42,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:42,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2021-06-06 06:40:42,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849662923] [2021-06-06 06:40:42,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-06 06:40:42,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:42,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-06 06:40:42,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-06-06 06:40:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:42,529 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:42,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:42,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:42,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:42,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:42,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:42,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:42,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:42,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:42,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:42,896 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:42,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:42,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1791925556, now seen corresponding path program 6 times [2021-06-06 06:40:42,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:42,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399213202] [2021-06-06 06:40:42,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:43,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:43,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399213202] [2021-06-06 06:40:43,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399213202] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:43,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074365372] [2021-06-06 06:40:43,016 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:43,213 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 06:40:43,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:43,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-06 06:40:43,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:43,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074365372] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:43,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:43,341 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2021-06-06 06:40:43,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220648478] [2021-06-06 06:40:43,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 06:40:43,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:43,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 06:40:43,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-06-06 06:40:43,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:43,342 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:43,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 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) [2021-06-06 06:40:43,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:43,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:43,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:43,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:43,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:43,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:43,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:43,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:43,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:43,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:43,714 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:43,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:43,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1024309159, now seen corresponding path program 7 times [2021-06-06 06:40:43,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:43,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423128829] [2021-06-06 06:40:43,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:43,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:43,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423128829] [2021-06-06 06:40:43,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423128829] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:43,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290394157] [2021-06-06 06:40:43,819 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:43,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-06 06:40:43,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:44,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290394157] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:44,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:44,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2021-06-06 06:40:44,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992218954] [2021-06-06 06:40:44,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-06 06:40:44,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:44,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-06 06:40:44,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-06-06 06:40:44,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:44,018 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:44,018 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.105263157894737) internal successors, (78), 19 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:44,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-06-06 06:40:44,389 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:44,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:44,389 INFO L82 PathProgramCache]: Analyzing trace with hash -476851476, now seen corresponding path program 8 times [2021-06-06 06:40:44,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:44,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802757028] [2021-06-06 06:40:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:44,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:44,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802757028] [2021-06-06 06:40:44,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802757028] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:44,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271293991] [2021-06-06 06:40:44,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:44,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 06:40:44,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:44,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-06 06:40:44,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:44,734 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:44,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271293991] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:44,734 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:44,734 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2021-06-06 06:40:44,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320290046] [2021-06-06 06:40:44,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-06 06:40:44,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:44,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-06 06:40:44,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2021-06-06 06:40:44,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:44,735 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:44,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 21 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) [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:44,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:45,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:45,149 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:45,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:45,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1999694905, now seen corresponding path program 9 times [2021-06-06 06:40:45,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:45,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604039074] [2021-06-06 06:40:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:45,305 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:45,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:45,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604039074] [2021-06-06 06:40:45,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604039074] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:45,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105753086] [2021-06-06 06:40:45,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:45,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-06-06 06:40:45,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:45,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-06 06:40:45,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:45,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105753086] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:45,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:45,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2021-06-06 06:40:45,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958483783] [2021-06-06 06:40:45,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-06 06:40:45,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:45,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-06 06:40:45,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-06-06 06:40:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:45,553 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:45,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 23 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) [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:45,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:46,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:46,068 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:46,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:46,069 INFO L82 PathProgramCache]: Analyzing trace with hash -901735668, now seen corresponding path program 10 times [2021-06-06 06:40:46,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:46,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102736660] [2021-06-06 06:40:46,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:46,249 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:46,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:46,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102736660] [2021-06-06 06:40:46,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102736660] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:46,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972340456] [2021-06-06 06:40:46,249 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:46,309 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 06:40:46,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:46,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-06 06:40:46,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:46,427 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:46,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972340456] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:46,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:46,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2021-06-06 06:40:46,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448621101] [2021-06-06 06:40:46,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 06:40:46,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:46,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 06:40:46,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2021-06-06 06:40:46,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:46,429 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:46,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.72) internal successors, (93), 25 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:46,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:46,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:46,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-06 06:40:46,893 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:46,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:46,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1541158937, now seen corresponding path program 11 times [2021-06-06 06:40:46,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:46,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992706094] [2021-06-06 06:40:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:47,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:47,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992706094] [2021-06-06 06:40:47,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992706094] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:47,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890591485] [2021-06-06 06:40:47,124 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:47,239 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-06-06 06:40:47,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:47,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-06 06:40:47,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:47,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890591485] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:47,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:47,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-06-06 06:40:47,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276270634] [2021-06-06 06:40:47,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-06 06:40:47,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:47,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-06 06:40:47,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=723, Unknown=0, NotChecked=0, Total=930 [2021-06-06 06:40:47,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:47,660 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:47,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 5.709677419354839) internal successors, (177), 31 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:47,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:47,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:47,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:47,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:47,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:47,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:47,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:47,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:47,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:47,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:47,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:47,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:47,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:48,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-06 06:40:48,037 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:48,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:48,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2050854051, now seen corresponding path program 1 times [2021-06-06 06:40:48,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:48,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754249880] [2021-06-06 06:40:48,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:48,240 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:48,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:48,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754249880] [2021-06-06 06:40:48,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754249880] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:48,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029441792] [2021-06-06 06:40:48,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:48,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-06 06:40:48,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:48,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029441792] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:48,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:48,863 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2021-06-06 06:40:48,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644511217] [2021-06-06 06:40:48,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-06 06:40:48,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:48,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-06 06:40:48,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=836, Unknown=0, NotChecked=0, Total=1056 [2021-06-06 06:40:48,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:48,865 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:48,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 5.666666666666667) internal successors, (187), 33 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:48,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:49,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-06 06:40:49,185 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:49,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:49,185 INFO L82 PathProgramCache]: Analyzing trace with hash 90948880, now seen corresponding path program 1 times [2021-06-06 06:40:49,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:49,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864559111] [2021-06-06 06:40:49,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:49,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:49,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864559111] [2021-06-06 06:40:49,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864559111] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:49,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486473570] [2021-06-06 06:40:49,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:49,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-06 06:40:49,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:49,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486473570] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:49,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:49,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 35 [2021-06-06 06:40:49,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132931774] [2021-06-06 06:40:49,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-06 06:40:49,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:49,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-06 06:40:49,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2021-06-06 06:40:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:49,943 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:49,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 5.628571428571429) internal successors, (197), 35 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:49,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:49,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:49,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:49,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:49,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:49,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:49,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:49,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:49,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:49,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:49,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:49,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:49,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:49,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:49,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:50,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:50,309 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:50,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:50,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1872705341, now seen corresponding path program 2 times [2021-06-06 06:40:50,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:50,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235910171] [2021-06-06 06:40:50,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:50,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:50,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235910171] [2021-06-06 06:40:50,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235910171] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:50,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235478874] [2021-06-06 06:40:50,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:50,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 06:40:50,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:50,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-06 06:40:50,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:51,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235478874] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:51,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:51,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 36 [2021-06-06 06:40:51,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414774130] [2021-06-06 06:40:51,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-06 06:40:51,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:51,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-06 06:40:51,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1028, Unknown=0, NotChecked=0, Total=1260 [2021-06-06 06:40:51,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:51,045 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:51,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 5.722222222222222) internal successors, (206), 36 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:51,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:51,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-06-06 06:40:51,418 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:51,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:51,419 INFO L82 PathProgramCache]: Analyzing trace with hash -427221776, now seen corresponding path program 3 times [2021-06-06 06:40:51,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:51,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016945458] [2021-06-06 06:40:51,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:51,630 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 307 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:51,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:51,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016945458] [2021-06-06 06:40:51,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016945458] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:51,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116607036] [2021-06-06 06:40:51,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:51,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-06-06 06:40:51,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:51,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-06 06:40:51,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 307 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:52,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116607036] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:52,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:52,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 39 [2021-06-06 06:40:52,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529752433] [2021-06-06 06:40:52,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-06-06 06:40:52,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:52,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-06-06 06:40:52,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=1232, Unknown=0, NotChecked=0, Total=1482 [2021-06-06 06:40:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:52,311 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:52,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 5.564102564102564) internal successors, (217), 39 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:52,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:52,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:52,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:52,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:52,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:52,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:52,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:40:52,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:52,745 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:52,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:52,746 INFO L82 PathProgramCache]: Analyzing trace with hash -851485469, now seen corresponding path program 4 times [2021-06-06 06:40:52,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:52,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987747422] [2021-06-06 06:40:52,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:53,002 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:53,002 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:53,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987747422] [2021-06-06 06:40:53,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987747422] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:53,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994997398] [2021-06-06 06:40:53,003 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:53,085 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 06:40:53,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:53,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-06 06:40:53,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:53,679 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:53,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994997398] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:53,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:53,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 41 [2021-06-06 06:40:53,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426423045] [2021-06-06 06:40:53,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-06 06:40:53,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:53,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-06 06:40:53,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1378, Unknown=0, NotChecked=0, Total=1640 [2021-06-06 06:40:53,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:53,681 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:53,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 5.536585365853658) internal successors, (227), 41 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:53,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:53,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:53,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:53,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:53,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:53,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:53,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:40:53,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:40:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:40:54,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-06 06:40:54,145 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:54,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:54,145 INFO L82 PathProgramCache]: Analyzing trace with hash -935191344, now seen corresponding path program 5 times [2021-06-06 06:40:54,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:54,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900146683] [2021-06-06 06:40:54,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:54,427 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:54,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:54,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900146683] [2021-06-06 06:40:54,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900146683] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:54,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423137613] [2021-06-06 06:40:54,428 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:54,560 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-06-06 06:40:54,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:54,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-06 06:40:54,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:55,185 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:55,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423137613] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:55,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:55,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 43 [2021-06-06 06:40:55,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894503562] [2021-06-06 06:40:55,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-06-06 06:40:55,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:55,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-06-06 06:40:55,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=1531, Unknown=0, NotChecked=0, Total=1806 [2021-06-06 06:40:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:55,187 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:55,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 5.511627906976744) internal successors, (237), 43 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:55,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:40:55,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:40:55,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:55,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:55,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:55,697 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:55,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:55,697 INFO L82 PathProgramCache]: Analyzing trace with hash -527742717, now seen corresponding path program 6 times [2021-06-06 06:40:55,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:55,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318870752] [2021-06-06 06:40:55,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:55,980 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 373 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:55,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:55,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318870752] [2021-06-06 06:40:55,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318870752] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:55,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570923599] [2021-06-06 06:40:55,980 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:56,054 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-06-06 06:40:56,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:56,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-06 06:40:56,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 373 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:56,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570923599] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:56,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:56,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 45 [2021-06-06 06:40:56,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770253479] [2021-06-06 06:40:56,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-06 06:40:56,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:56,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-06 06:40:56,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=1691, Unknown=0, NotChecked=0, Total=1980 [2021-06-06 06:40:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:56,718 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:56,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 5.488888888888889) internal successors, (247), 45 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:56,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:40:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:40:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:56,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:40:57,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:57,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:40:57,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-06-06 06:40:57,327 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:57,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:57,327 INFO L82 PathProgramCache]: Analyzing trace with hash -98253648, now seen corresponding path program 7 times [2021-06-06 06:40:57,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:57,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733372516] [2021-06-06 06:40:57,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:57,609 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:57,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:57,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733372516] [2021-06-06 06:40:57,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733372516] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:57,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64154698] [2021-06-06 06:40:57,610 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:57,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-06 06:40:57,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:40:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:58,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64154698] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:58,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:40:58,403 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 47 [2021-06-06 06:40:58,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130719166] [2021-06-06 06:40:58,403 INFO L462 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-06-06 06:40:58,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:40:58,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-06-06 06:40:58,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1858, Unknown=0, NotChecked=0, Total=2162 [2021-06-06 06:40:58,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:58,404 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:40:58,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 5.468085106382978) internal successors, (257), 47 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:40:58,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:58,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:58,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:40:58,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:40:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:40:58,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:40:59,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-06-06 06:40:59,027 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:40:59,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:40:59,027 INFO L82 PathProgramCache]: Analyzing trace with hash 58101027, now seen corresponding path program 8 times [2021-06-06 06:40:59,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:40:59,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428386404] [2021-06-06 06:40:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:40:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:40:59,328 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:40:59,328 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:40:59,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428386404] [2021-06-06 06:40:59,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428386404] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:40:59,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19524532] [2021-06-06 06:40:59,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:40:59,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 06:40:59,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:40:59,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-06 06:40:59,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:41:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:00,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19524532] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:00,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:41:00,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 48 [2021-06-06 06:41:00,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159942935] [2021-06-06 06:41:00,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-06-06 06:41:00,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:41:00,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-06-06 06:41:00,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1949, Unknown=0, NotChecked=0, Total=2256 [2021-06-06 06:41:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:00,161 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:41:00,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 5.541666666666667) internal successors, (266), 48 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:00,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:00,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:41:00,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:00,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:00,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:00,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:41:00,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:00,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:00,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:41:00,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:41:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:00,805 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:00,806 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:41:00,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:41:00,806 INFO L82 PathProgramCache]: Analyzing trace with hash 842994832, now seen corresponding path program 9 times [2021-06-06 06:41:00,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:41:00,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178296631] [2021-06-06 06:41:00,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:41:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:41:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:01,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:41:01,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178296631] [2021-06-06 06:41:01,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178296631] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:01,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6098351] [2021-06-06 06:41:01,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:01,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-06-06 06:41:01,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:41:01,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-06 06:41:01,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:41:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:02,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6098351] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:02,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:41:02,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 51 [2021-06-06 06:41:02,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369802363] [2021-06-06 06:41:02,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-06-06 06:41:02,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:41:02,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-06-06 06:41:02,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=2213, Unknown=0, NotChecked=0, Total=2550 [2021-06-06 06:41:02,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:02,049 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:41:02,049 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 5.431372549019608) internal successors, (277), 51 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:41:02,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:02,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:02,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:02,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:41:02,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:02,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:02,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:41:02,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:02,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:41:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:41:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:41:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 06:41:02,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:02,745 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:41:02,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:41:02,745 INFO L82 PathProgramCache]: Analyzing trace with hash 414394691, now seen corresponding path program 10 times [2021-06-06 06:41:02,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:41:02,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730129755] [2021-06-06 06:41:02,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:41:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:41:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 531 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:03,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:41:03,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730129755] [2021-06-06 06:41:03,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730129755] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:03,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122430850] [2021-06-06 06:41:03,090 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:03,163 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 06:41:03,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:41:03,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 29 conjunts are in the unsatisfiable core [2021-06-06 06:41:03,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:41:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 531 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:04,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122430850] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:04,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:41:04,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 53 [2021-06-06 06:41:04,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622100959] [2021-06-06 06:41:04,019 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-06 06:41:04,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:41:04,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-06 06:41:04,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=2401, Unknown=0, NotChecked=0, Total=2756 [2021-06-06 06:41:04,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:04,020 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:41:04,020 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 5.415094339622642) internal successors, (287), 53 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:41:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 06:41:04,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 06:41:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 06:41:04,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-06-06 06:41:04,813 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:41:04,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:41:04,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1830751344, now seen corresponding path program 11 times [2021-06-06 06:41:04,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:41:04,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46501686] [2021-06-06 06:41:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:41:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:41:05,038 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 256 proven. 41 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-06-06 06:41:05,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:41:05,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46501686] [2021-06-06 06:41:05,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46501686] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:05,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345746912] [2021-06-06 06:41:05,038 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:05,194 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-06-06 06:41:05,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:41:05,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-06 06:41:05,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:41:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-06-06 06:41:05,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345746912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 06:41:05,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-06 06:41:05,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [25] total 27 [2021-06-06 06:41:05,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476436619] [2021-06-06 06:41:05,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 06:41:05,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:41:05,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 06:41:05,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2021-06-06 06:41:05,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:05,367 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:41:05,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.12) internal successors, (103), 25 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 06:41:05,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:41:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:41:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 06:41:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 06:41:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:06,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:06,312 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:41:06,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:41:06,313 INFO L82 PathProgramCache]: Analyzing trace with hash -682230416, now seen corresponding path program 2 times [2021-06-06 06:41:06,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:41:06,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313465794] [2021-06-06 06:41:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:41:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:41:06,497 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 301 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:06,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:41:06,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313465794] [2021-06-06 06:41:06,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313465794] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:06,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142945111] [2021-06-06 06:41:06,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:06,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 06:41:06,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:41:06,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-06 06:41:06,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:41:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:06,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142945111] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 06:41:06,675 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-06 06:41:06,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [25] total 27 [2021-06-06 06:41:06,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277639565] [2021-06-06 06:41:06,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 06:41:06,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:41:06,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 06:41:06,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2021-06-06 06:41:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:06,677 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:41:06,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.12) internal successors, (103), 25 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:06,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:06,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 06:41:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-06 06:41:12,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 06:41:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:12,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-06-06 06:41:12,493 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:41:12,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:41:12,494 INFO L82 PathProgramCache]: Analyzing trace with hash -580989062, now seen corresponding path program 12 times [2021-06-06 06:41:12,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:41:12,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277088214] [2021-06-06 06:41:12,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:41:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:41:12,730 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:12,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:41:12,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277088214] [2021-06-06 06:41:12,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277088214] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:12,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788081426] [2021-06-06 06:41:12,731 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:12,799 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-06-06 06:41:12,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 06:41:12,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-06 06:41:12,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 06:41:13,751 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:13,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788081426] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:13,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 06:41:13,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 43 [2021-06-06 06:41:13,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400607602] [2021-06-06 06:41:13,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-06-06 06:41:13,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 06:41:13,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-06-06 06:41:13,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1541, Unknown=0, NotChecked=0, Total=1806 [2021-06-06 06:41:13,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:13,753 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 06:41:13,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 5.511627906976744) internal successors, (237), 43 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-06 06:41:13,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:13,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:15,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 06:41:15,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:15,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 06:41:15,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:15,450 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-06 06:41:15,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 06:41:15,450 INFO L82 PathProgramCache]: Analyzing trace with hash 2108010649, now seen corresponding path program 13 times [2021-06-06 06:41:15,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 06:41:15,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400664956] [2021-06-06 06:41:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 06:41:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:41:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 373 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 06:41:15,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 06:41:15,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400664956] [2021-06-06 06:41:15,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400664956] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 06:41:15,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709390026] [2021-06-06 06:41:15,797 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 06:41:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 06:41:15,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-06 06:41:15,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown