/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:22:56,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:22:56,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:22:56,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:22:56,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:22:56,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:22:56,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:22:56,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:22:56,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:22:56,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:22:56,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:22:56,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:22:56,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:22:56,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:22:56,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:22:56,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:22:56,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:22:56,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:22:56,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:22:56,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:22:56,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:22:56,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:22:56,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:22:56,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:22:56,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:22:56,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:22:56,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:22:56,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:22:56,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:22:56,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:22:56,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:22:56,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:22:56,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:22:56,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:22:56,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:22:56,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:22:56,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:22:56,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:22:56,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:22:56,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:22:56,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:22:56,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:22:56,297 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:22:56,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:22:56,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:22:56,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:22:56,302 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:22:56,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:22:56,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:22:56,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:22:56,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:22:56,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:22:56,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:22:56,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:22:56,305 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:22:56,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:22:56,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:22:56,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:22:56,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:22:56,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:22:56,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:22:56,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:22:56,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:22:56,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:22:56,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:22:56,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:22:56,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:22:56,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:22:56,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:22:56,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:22:56,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:22:56,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:22:56,763 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:22:56,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:22:56,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/615aba3b4/b3f7b95329094399b42b7fb99b57ae2a/FLAGb2ff0ebbb [2020-12-22 08:22:57,863 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:22:57,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:22:57,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/615aba3b4/b3f7b95329094399b42b7fb99b57ae2a/FLAGb2ff0ebbb [2020-12-22 08:22:58,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/615aba3b4/b3f7b95329094399b42b7fb99b57ae2a [2020-12-22 08:22:58,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:22:58,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:22:58,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:22:58,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:22:58,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:22:58,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:22:58" (1/1) ... [2020-12-22 08:22:58,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4778df5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:22:58, skipping insertion in model container [2020-12-22 08:22:58,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:22:58" (1/1) ... [2020-12-22 08:22:58,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:22:58,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:22:58,915 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11496,11509] [2020-12-22 08:22:58,959 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18234,18247] [2020-12-22 08:22:58,976 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20432,20445] [2020-12-22 08:22:58,984 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21509,21522] [2020-12-22 08:22:59,009 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24862,24875] [2020-12-22 08:22:59,018 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25942,25955] [2020-12-22 08:22:59,034 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28171,28184] [2020-12-22 08:22:59,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:22:59,747 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:22:59,854 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11496,11509] [2020-12-22 08:22:59,882 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18234,18247] [2020-12-22 08:22:59,889 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20432,20445] [2020-12-22 08:22:59,896 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21509,21522] [2020-12-22 08:22:59,907 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24862,24875] [2020-12-22 08:22:59,911 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25942,25955] [2020-12-22 08:22:59,918 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28171,28184] [2020-12-22 08:23:00,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:23:00,308 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:23:00,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00 WrapperNode [2020-12-22 08:23:00,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:23:00,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:23:00,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:23:00,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:23:00,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (1/1) ... [2020-12-22 08:23:00,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (1/1) ... [2020-12-22 08:23:00,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:23:00,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:23:00,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:23:00,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:23:00,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (1/1) ... [2020-12-22 08:23:00,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (1/1) ... [2020-12-22 08:23:00,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (1/1) ... [2020-12-22 08:23:00,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (1/1) ... [2020-12-22 08:23:00,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (1/1) ... [2020-12-22 08:23:00,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (1/1) ... [2020-12-22 08:23:00,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (1/1) ... [2020-12-22 08:23:00,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:23:00,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:23:00,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:23:00,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:23:00,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (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 [2020-12-22 08:23:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:23:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:23:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:23:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:23:04,749 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:23:04,750 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:23:04,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:23:04 BoogieIcfgContainer [2020-12-22 08:23:04,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:23:04,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:23:04,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:23:04,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:23:04,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:22:58" (1/3) ... [2020-12-22 08:23:04,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a23223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:23:04, skipping insertion in model container [2020-12-22 08:23:04,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:00" (2/3) ... [2020-12-22 08:23:04,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a23223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:23:04, skipping insertion in model container [2020-12-22 08:23:04,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:23:04" (3/3) ... [2020-12-22 08:23:04,763 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:23:04,770 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:23:04,777 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 08:23:04,797 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 08:23:04,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:23:04,833 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:23:04,833 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:23:04,833 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:23:04,833 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:23:04,834 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:23:04,834 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:23:04,834 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:23:04,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states. [2020-12-22 08:23:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 08:23:04,898 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:04,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:04,900 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:04,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:04,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1027637325, now seen corresponding path program 1 times [2020-12-22 08:23:04,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:04,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636084347] [2020-12-22 08:23:04,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:05,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636084347] [2020-12-22 08:23:05,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:05,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:23:05,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455496583] [2020-12-22 08:23:05,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:23:05,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:05,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:23:05,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:23:05,521 INFO L87 Difference]: Start difference. First operand 1102 states. Second operand 5 states. [2020-12-22 08:23:06,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:06,711 INFO L93 Difference]: Finished difference Result 1791 states and 3276 transitions. [2020-12-22 08:23:06,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:23:06,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2020-12-22 08:23:06,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:06,737 INFO L225 Difference]: With dead ends: 1791 [2020-12-22 08:23:06,737 INFO L226 Difference]: Without dead ends: 988 [2020-12-22 08:23:06,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:23:06,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-12-22 08:23:06,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 980. [2020-12-22 08:23:06,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 980 states. [2020-12-22 08:23:06,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1311 transitions. [2020-12-22 08:23:06,874 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1311 transitions. Word has length 63 [2020-12-22 08:23:06,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:06,875 INFO L481 AbstractCegarLoop]: Abstraction has 980 states and 1311 transitions. [2020-12-22 08:23:06,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:23:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1311 transitions. [2020-12-22 08:23:06,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 08:23:06,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:06,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:06,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:23:06,882 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:06,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:06,884 INFO L82 PathProgramCache]: Analyzing trace with hash 517550277, now seen corresponding path program 1 times [2020-12-22 08:23:06,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:06,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533339132] [2020-12-22 08:23:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:07,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:07,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533339132] [2020-12-22 08:23:07,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:07,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:23:07,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889963405] [2020-12-22 08:23:07,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:23:07,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:07,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:23:07,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:23:07,095 INFO L87 Difference]: Start difference. First operand 980 states and 1311 transitions. Second operand 3 states. [2020-12-22 08:23:07,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:07,185 INFO L93 Difference]: Finished difference Result 1944 states and 2688 transitions. [2020-12-22 08:23:07,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:23:07,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 08:23:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:07,194 INFO L225 Difference]: With dead ends: 1944 [2020-12-22 08:23:07,194 INFO L226 Difference]: Without dead ends: 1551 [2020-12-22 08:23:07,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:23:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2020-12-22 08:23:07,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1542. [2020-12-22 08:23:07,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1542 states. [2020-12-22 08:23:07,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2086 transitions. [2020-12-22 08:23:07,257 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2086 transitions. Word has length 64 [2020-12-22 08:23:07,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:07,257 INFO L481 AbstractCegarLoop]: Abstraction has 1542 states and 2086 transitions. [2020-12-22 08:23:07,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:23:07,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2086 transitions. [2020-12-22 08:23:07,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 08:23:07,261 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:07,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:07,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:23:07,262 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:07,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:07,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1546123801, now seen corresponding path program 1 times [2020-12-22 08:23:07,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:07,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706340232] [2020-12-22 08:23:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:07,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:07,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706340232] [2020-12-22 08:23:07,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:07,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:23:07,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497365742] [2020-12-22 08:23:07,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:23:07,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:07,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:23:07,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:23:07,453 INFO L87 Difference]: Start difference. First operand 1542 states and 2086 transitions. Second operand 3 states. [2020-12-22 08:23:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:07,684 INFO L93 Difference]: Finished difference Result 2563 states and 3607 transitions. [2020-12-22 08:23:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:23:07,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 08:23:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:07,706 INFO L225 Difference]: With dead ends: 2563 [2020-12-22 08:23:07,706 INFO L226 Difference]: Without dead ends: 2064 [2020-12-22 08:23:07,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:23:07,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2020-12-22 08:23:07,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 2056. [2020-12-22 08:23:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2056 states. [2020-12-22 08:23:07,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2834 transitions. [2020-12-22 08:23:07,800 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2834 transitions. Word has length 64 [2020-12-22 08:23:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:07,802 INFO L481 AbstractCegarLoop]: Abstraction has 2056 states and 2834 transitions. [2020-12-22 08:23:07,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:23:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2834 transitions. [2020-12-22 08:23:07,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 08:23:07,807 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:07,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:07,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:23:07,809 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:07,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:07,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1930220714, now seen corresponding path program 1 times [2020-12-22 08:23:07,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:07,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419156625] [2020-12-22 08:23:07,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:07,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419156625] [2020-12-22 08:23:07,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:07,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:23:07,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788527298] [2020-12-22 08:23:07,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:23:07,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:07,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:23:07,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:23:07,949 INFO L87 Difference]: Start difference. First operand 2056 states and 2834 transitions. Second operand 3 states. [2020-12-22 08:23:08,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:08,133 INFO L93 Difference]: Finished difference Result 3948 states and 5626 transitions. [2020-12-22 08:23:08,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:23:08,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 08:23:08,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:08,150 INFO L225 Difference]: With dead ends: 3948 [2020-12-22 08:23:08,150 INFO L226 Difference]: Without dead ends: 2914 [2020-12-22 08:23:08,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:23:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2020-12-22 08:23:08,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2906. [2020-12-22 08:23:08,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2906 states. [2020-12-22 08:23:08,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 4058 transitions. [2020-12-22 08:23:08,385 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 4058 transitions. Word has length 64 [2020-12-22 08:23:08,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:08,386 INFO L481 AbstractCegarLoop]: Abstraction has 2906 states and 4058 transitions. [2020-12-22 08:23:08,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:23:08,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 4058 transitions. [2020-12-22 08:23:08,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 08:23:08,392 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:08,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:08,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:23:08,395 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:08,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:08,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1847708861, now seen corresponding path program 1 times [2020-12-22 08:23:08,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:08,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291643727] [2020-12-22 08:23:08,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:08,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:08,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291643727] [2020-12-22 08:23:08,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:08,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:23:08,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829121933] [2020-12-22 08:23:08,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:23:08,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:08,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:23:08,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:23:08,607 INFO L87 Difference]: Start difference. First operand 2906 states and 4058 transitions. Second operand 6 states. [2020-12-22 08:23:09,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:09,682 INFO L93 Difference]: Finished difference Result 8049 states and 11523 transitions. [2020-12-22 08:23:09,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:23:09,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-12-22 08:23:09,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:09,714 INFO L225 Difference]: With dead ends: 8049 [2020-12-22 08:23:09,714 INFO L226 Difference]: Without dead ends: 5468 [2020-12-22 08:23:09,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:23:09,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5468 states. [2020-12-22 08:23:10,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5468 to 5452. [2020-12-22 08:23:10,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5452 states. [2020-12-22 08:23:10,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 7818 transitions. [2020-12-22 08:23:10,119 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 7818 transitions. Word has length 64 [2020-12-22 08:23:10,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:10,119 INFO L481 AbstractCegarLoop]: Abstraction has 5452 states and 7818 transitions. [2020-12-22 08:23:10,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:23:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 7818 transitions. [2020-12-22 08:23:10,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 08:23:10,126 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:10,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:10,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:23:10,127 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:10,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:10,128 INFO L82 PathProgramCache]: Analyzing trace with hash -289517497, now seen corresponding path program 1 times [2020-12-22 08:23:10,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:10,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737341886] [2020-12-22 08:23:10,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:10,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737341886] [2020-12-22 08:23:10,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:10,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:23:10,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261978981] [2020-12-22 08:23:10,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:23:10,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:10,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:23:10,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:23:10,228 INFO L87 Difference]: Start difference. First operand 5452 states and 7818 transitions. Second operand 3 states. [2020-12-22 08:23:10,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:10,646 INFO L93 Difference]: Finished difference Result 12211 states and 17719 transitions. [2020-12-22 08:23:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:23:10,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-12-22 08:23:10,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:10,774 INFO L225 Difference]: With dead ends: 12211 [2020-12-22 08:23:10,775 INFO L226 Difference]: Without dead ends: 7906 [2020-12-22 08:23:10,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:23:10,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7906 states. [2020-12-22 08:23:11,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7906 to 7866. [2020-12-22 08:23:11,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7866 states. [2020-12-22 08:23:11,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7866 states to 7866 states and 11220 transitions. [2020-12-22 08:23:11,231 INFO L78 Accepts]: Start accepts. Automaton has 7866 states and 11220 transitions. Word has length 65 [2020-12-22 08:23:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:11,233 INFO L481 AbstractCegarLoop]: Abstraction has 7866 states and 11220 transitions. [2020-12-22 08:23:11,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:23:11,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7866 states and 11220 transitions. [2020-12-22 08:23:11,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 08:23:11,242 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:11,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:11,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:23:11,243 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:11,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:11,243 INFO L82 PathProgramCache]: Analyzing trace with hash 951250508, now seen corresponding path program 1 times [2020-12-22 08:23:11,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:11,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928122989] [2020-12-22 08:23:11,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:11,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928122989] [2020-12-22 08:23:11,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:11,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:23:11,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987193371] [2020-12-22 08:23:11,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:23:11,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:11,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:23:11,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:23:11,377 INFO L87 Difference]: Start difference. First operand 7866 states and 11220 transitions. Second operand 6 states. [2020-12-22 08:23:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:13,015 INFO L93 Difference]: Finished difference Result 22796 states and 32880 transitions. [2020-12-22 08:23:13,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:23:13,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-12-22 08:23:13,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:13,075 INFO L225 Difference]: With dead ends: 22796 [2020-12-22 08:23:13,075 INFO L226 Difference]: Without dead ends: 15420 [2020-12-22 08:23:13,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:23:13,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15420 states. [2020-12-22 08:23:14,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15420 to 15324. [2020-12-22 08:23:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15324 states. [2020-12-22 08:23:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15324 states to 15324 states and 22080 transitions. [2020-12-22 08:23:14,077 INFO L78 Accepts]: Start accepts. Automaton has 15324 states and 22080 transitions. Word has length 65 [2020-12-22 08:23:14,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:14,077 INFO L481 AbstractCegarLoop]: Abstraction has 15324 states and 22080 transitions. [2020-12-22 08:23:14,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:23:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 15324 states and 22080 transitions. [2020-12-22 08:23:14,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:23:14,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:14,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:14,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:23:14,093 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:14,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:14,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1633906490, now seen corresponding path program 1 times [2020-12-22 08:23:14,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:14,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187395534] [2020-12-22 08:23:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:14,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:14,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187395534] [2020-12-22 08:23:14,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:14,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:23:14,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826284542] [2020-12-22 08:23:14,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:23:14,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:14,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:23:14,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:23:14,228 INFO L87 Difference]: Start difference. First operand 15324 states and 22080 transitions. Second operand 6 states. [2020-12-22 08:23:16,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:16,087 INFO L93 Difference]: Finished difference Result 47141 states and 68235 transitions. [2020-12-22 08:23:16,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:23:16,088 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-22 08:23:16,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:16,165 INFO L225 Difference]: With dead ends: 47141 [2020-12-22 08:23:16,166 INFO L226 Difference]: Without dead ends: 32307 [2020-12-22 08:23:16,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:23:16,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32307 states. [2020-12-22 08:23:18,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32307 to 32091. [2020-12-22 08:23:18,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32091 states. [2020-12-22 08:23:18,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32091 states to 32091 states and 46317 transitions. [2020-12-22 08:23:18,137 INFO L78 Accepts]: Start accepts. Automaton has 32091 states and 46317 transitions. Word has length 66 [2020-12-22 08:23:18,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:18,138 INFO L481 AbstractCegarLoop]: Abstraction has 32091 states and 46317 transitions. [2020-12-22 08:23:18,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:23:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 32091 states and 46317 transitions. [2020-12-22 08:23:18,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:23:18,151 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:18,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:18,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:23:18,152 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:18,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:18,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1449474395, now seen corresponding path program 1 times [2020-12-22 08:23:18,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:18,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707783676] [2020-12-22 08:23:18,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:18,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:18,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707783676] [2020-12-22 08:23:18,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:18,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 08:23:18,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967136979] [2020-12-22 08:23:18,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:23:18,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:18,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:23:18,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:23:18,273 INFO L87 Difference]: Start difference. First operand 32091 states and 46317 transitions. Second operand 7 states. [2020-12-22 08:23:24,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:24,147 INFO L93 Difference]: Finished difference Result 120223 states and 174534 transitions. [2020-12-22 08:23:24,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 08:23:24,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-12-22 08:23:24,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:24,618 INFO L225 Difference]: With dead ends: 120223 [2020-12-22 08:23:24,618 INFO L226 Difference]: Without dead ends: 103728 [2020-12-22 08:23:24,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-22 08:23:24,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103728 states. [2020-12-22 08:23:27,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103728 to 32119. [2020-12-22 08:23:27,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32119 states. [2020-12-22 08:23:27,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32119 states to 32119 states and 46353 transitions. [2020-12-22 08:23:27,902 INFO L78 Accepts]: Start accepts. Automaton has 32119 states and 46353 transitions. Word has length 67 [2020-12-22 08:23:27,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:27,903 INFO L481 AbstractCegarLoop]: Abstraction has 32119 states and 46353 transitions. [2020-12-22 08:23:27,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:23:27,903 INFO L276 IsEmpty]: Start isEmpty. Operand 32119 states and 46353 transitions. [2020-12-22 08:23:27,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:23:27,917 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:27,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:27,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:23:27,918 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:27,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:27,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1861181409, now seen corresponding path program 1 times [2020-12-22 08:23:27,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:27,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393982796] [2020-12-22 08:23:27,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:28,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393982796] [2020-12-22 08:23:28,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:28,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 08:23:28,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286390630] [2020-12-22 08:23:28,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:23:28,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:28,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:23:28,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:23:28,051 INFO L87 Difference]: Start difference. First operand 32119 states and 46353 transitions. Second operand 7 states. [2020-12-22 08:23:36,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:36,956 INFO L93 Difference]: Finished difference Result 134893 states and 195934 transitions. [2020-12-22 08:23:36,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 08:23:36,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-12-22 08:23:36,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:37,405 INFO L225 Difference]: With dead ends: 134893 [2020-12-22 08:23:37,406 INFO L226 Difference]: Without dead ends: 119078 [2020-12-22 08:23:37,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-22 08:23:37,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119078 states. [2020-12-22 08:23:40,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119078 to 32207. [2020-12-22 08:23:40,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32207 states. [2020-12-22 08:23:40,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32207 states to 32207 states and 46474 transitions. [2020-12-22 08:23:40,837 INFO L78 Accepts]: Start accepts. Automaton has 32207 states and 46474 transitions. Word has length 67 [2020-12-22 08:23:40,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:40,838 INFO L481 AbstractCegarLoop]: Abstraction has 32207 states and 46474 transitions. [2020-12-22 08:23:40,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:23:40,838 INFO L276 IsEmpty]: Start isEmpty. Operand 32207 states and 46474 transitions. [2020-12-22 08:23:40,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:23:40,850 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:40,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:40,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:23:40,851 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:40,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:40,851 INFO L82 PathProgramCache]: Analyzing trace with hash 2008504829, now seen corresponding path program 1 times [2020-12-22 08:23:40,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:40,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478256577] [2020-12-22 08:23:40,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:40,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478256577] [2020-12-22 08:23:40,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:40,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 08:23:40,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145680797] [2020-12-22 08:23:40,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:23:40,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:40,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:23:40,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:23:40,967 INFO L87 Difference]: Start difference. First operand 32207 states and 46474 transitions. Second operand 7 states. [2020-12-22 08:23:55,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:55,919 INFO L93 Difference]: Finished difference Result 188299 states and 273711 transitions. [2020-12-22 08:23:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 08:23:55,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-12-22 08:23:55,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:56,579 INFO L225 Difference]: With dead ends: 188299 [2020-12-22 08:23:56,579 INFO L226 Difference]: Without dead ends: 174374 [2020-12-22 08:23:56,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-22 08:23:56,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174374 states. [2020-12-22 08:24:00,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174374 to 32275. [2020-12-22 08:24:00,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32275 states. [2020-12-22 08:24:00,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32275 states to 32275 states and 46562 transitions. [2020-12-22 08:24:00,634 INFO L78 Accepts]: Start accepts. Automaton has 32275 states and 46562 transitions. Word has length 67 [2020-12-22 08:24:00,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:00,634 INFO L481 AbstractCegarLoop]: Abstraction has 32275 states and 46562 transitions. [2020-12-22 08:24:00,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:24:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 32275 states and 46562 transitions. [2020-12-22 08:24:00,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:24:00,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:00,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:24:00,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:24:00,645 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:00,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:00,645 INFO L82 PathProgramCache]: Analyzing trace with hash 296799215, now seen corresponding path program 1 times [2020-12-22 08:24:00,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:00,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551546339] [2020-12-22 08:24:00,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:24:00,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551546339] [2020-12-22 08:24:00,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:00,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 08:24:00,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811119812] [2020-12-22 08:24:00,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:24:00,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:00,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:24:00,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:24:00,741 INFO L87 Difference]: Start difference. First operand 32275 states and 46562 transitions. Second operand 7 states. [2020-12-22 08:24:15,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:15,872 INFO L93 Difference]: Finished difference Result 155289 states and 225548 transitions. [2020-12-22 08:24:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 08:24:15,872 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2020-12-22 08:24:15,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:16,236 INFO L225 Difference]: With dead ends: 155289 [2020-12-22 08:24:16,237 INFO L226 Difference]: Without dead ends: 139042 [2020-12-22 08:24:16,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-22 08:24:16,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139042 states. [2020-12-22 08:24:20,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139042 to 32438. [2020-12-22 08:24:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32438 states. [2020-12-22 08:24:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32438 states to 32438 states and 46777 transitions. [2020-12-22 08:24:20,482 INFO L78 Accepts]: Start accepts. Automaton has 32438 states and 46777 transitions. Word has length 67 [2020-12-22 08:24:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:20,482 INFO L481 AbstractCegarLoop]: Abstraction has 32438 states and 46777 transitions. [2020-12-22 08:24:20,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:24:20,482 INFO L276 IsEmpty]: Start isEmpty. Operand 32438 states and 46777 transitions. [2020-12-22 08:24:20,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:24:20,492 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:20,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:24:20,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:24:20,492 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:20,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:20,493 INFO L82 PathProgramCache]: Analyzing trace with hash -766843701, now seen corresponding path program 1 times [2020-12-22 08:24:20,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:20,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727608007] [2020-12-22 08:24:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:20,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:24:20,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727608007] [2020-12-22 08:24:20,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:20,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:24:20,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179809461] [2020-12-22 08:24:20,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:24:20,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:20,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:24:20,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:24:20,686 INFO L87 Difference]: Start difference. First operand 32438 states and 46777 transitions. Second operand 9 states. [2020-12-22 08:24:32,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:32,622 INFO L93 Difference]: Finished difference Result 109366 states and 160296 transitions. [2020-12-22 08:24:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-22 08:24:32,623 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-12-22 08:24:32,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:32,723 INFO L225 Difference]: With dead ends: 109366 [2020-12-22 08:24:32,723 INFO L226 Difference]: Without dead ends: 82513 [2020-12-22 08:24:32,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2020-12-22 08:24:32,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82513 states. [2020-12-22 08:24:37,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82513 to 32426. [2020-12-22 08:24:37,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32426 states. [2020-12-22 08:24:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32426 states to 32426 states and 46753 transitions. [2020-12-22 08:24:37,123 INFO L78 Accepts]: Start accepts. Automaton has 32426 states and 46753 transitions. Word has length 68 [2020-12-22 08:24:37,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:37,123 INFO L481 AbstractCegarLoop]: Abstraction has 32426 states and 46753 transitions. [2020-12-22 08:24:37,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:24:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 32426 states and 46753 transitions. [2020-12-22 08:24:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:24:37,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:37,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:24:37,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:24:37,131 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:37,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:37,131 INFO L82 PathProgramCache]: Analyzing trace with hash -646757943, now seen corresponding path program 1 times [2020-12-22 08:24:37,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:37,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94504833] [2020-12-22 08:24:37,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:37,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:24:37,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94504833] [2020-12-22 08:24:37,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:37,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:24:37,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793805032] [2020-12-22 08:24:37,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:24:37,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:37,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:24:37,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:24:37,316 INFO L87 Difference]: Start difference. First operand 32426 states and 46753 transitions. Second operand 9 states. [2020-12-22 08:24:49,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:49,951 INFO L93 Difference]: Finished difference Result 109411 states and 160366 transitions. [2020-12-22 08:24:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-22 08:24:49,951 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-12-22 08:24:49,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:50,086 INFO L225 Difference]: With dead ends: 109411 [2020-12-22 08:24:50,087 INFO L226 Difference]: Without dead ends: 82526 [2020-12-22 08:24:50,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2020-12-22 08:24:50,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82526 states. [2020-12-22 08:24:55,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82526 to 32398. [2020-12-22 08:24:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32398 states. [2020-12-22 08:24:55,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32398 states to 32398 states and 46709 transitions. [2020-12-22 08:24:55,117 INFO L78 Accepts]: Start accepts. Automaton has 32398 states and 46709 transitions. Word has length 68 [2020-12-22 08:24:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:55,117 INFO L481 AbstractCegarLoop]: Abstraction has 32398 states and 46709 transitions. [2020-12-22 08:24:55,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:24:55,117 INFO L276 IsEmpty]: Start isEmpty. Operand 32398 states and 46709 transitions. [2020-12-22 08:24:55,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:24:55,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:55,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:24:55,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:24:55,125 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:55,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:55,126 INFO L82 PathProgramCache]: Analyzing trace with hash 850267752, now seen corresponding path program 1 times [2020-12-22 08:24:55,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:55,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438441282] [2020-12-22 08:24:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:55,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:24:55,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438441282] [2020-12-22 08:24:55,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:55,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 08:24:55,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490109221] [2020-12-22 08:24:55,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 08:24:55,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:55,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 08:24:55,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:24:55,222 INFO L87 Difference]: Start difference. First operand 32398 states and 46709 transitions. Second operand 7 states. [2020-12-22 08:25:14,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:25:14,706 INFO L93 Difference]: Finished difference Result 135146 states and 196255 transitions. [2020-12-22 08:25:14,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 08:25:14,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2020-12-22 08:25:14,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:25:14,900 INFO L225 Difference]: With dead ends: 135146 [2020-12-22 08:25:14,901 INFO L226 Difference]: Without dead ends: 119331 [2020-12-22 08:25:14,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-22 08:25:15,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119331 states. [2020-12-22 08:25:20,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119331 to 32489. [2020-12-22 08:25:20,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32489 states. [2020-12-22 08:25:20,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32489 states to 32489 states and 46837 transitions. [2020-12-22 08:25:20,592 INFO L78 Accepts]: Start accepts. Automaton has 32489 states and 46837 transitions. Word has length 68 [2020-12-22 08:25:20,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:25:20,592 INFO L481 AbstractCegarLoop]: Abstraction has 32489 states and 46837 transitions. [2020-12-22 08:25:20,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 08:25:20,593 INFO L276 IsEmpty]: Start isEmpty. Operand 32489 states and 46837 transitions. [2020-12-22 08:25:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:25:20,600 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:25:20,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:25:20,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:25:20,601 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:25:20,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:25:20,602 INFO L82 PathProgramCache]: Analyzing trace with hash -16939312, now seen corresponding path program 1 times [2020-12-22 08:25:20,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:25:20,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304276081] [2020-12-22 08:25:20,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:25:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:25:20,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:25:20,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304276081] [2020-12-22 08:25:20,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:25:20,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:25:20,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756229662] [2020-12-22 08:25:20,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:25:20,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:25:20,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:25:20,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:25:20,748 INFO L87 Difference]: Start difference. First operand 32489 states and 46837 transitions. Second operand 9 states. [2020-12-22 08:25:43,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:25:43,739 INFO L93 Difference]: Finished difference Result 157119 states and 229739 transitions. [2020-12-22 08:25:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:25:43,739 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-12-22 08:25:43,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:25:43,988 INFO L225 Difference]: With dead ends: 157119 [2020-12-22 08:25:43,988 INFO L226 Difference]: Without dead ends: 129916 [2020-12-22 08:25:44,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:25:44,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129916 states. [2020-12-22 08:25:49,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129916 to 32303. [2020-12-22 08:25:49,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32303 states. [2020-12-22 08:25:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32303 states to 32303 states and 46590 transitions. [2020-12-22 08:25:50,053 INFO L78 Accepts]: Start accepts. Automaton has 32303 states and 46590 transitions. Word has length 68 [2020-12-22 08:25:50,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:25:50,054 INFO L481 AbstractCegarLoop]: Abstraction has 32303 states and 46590 transitions. [2020-12-22 08:25:50,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:25:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 32303 states and 46590 transitions. [2020-12-22 08:25:50,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:25:50,069 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:25:50,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:25:50,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:25:50,069 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:25:50,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:25:50,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1623797592, now seen corresponding path program 1 times [2020-12-22 08:25:50,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:25:50,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234255938] [2020-12-22 08:25:50,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:25:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:25:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:25:50,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234255938] [2020-12-22 08:25:50,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:25:50,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:25:50,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302653524] [2020-12-22 08:25:50,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:25:50,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:25:50,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:25:50,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:25:50,270 INFO L87 Difference]: Start difference. First operand 32303 states and 46590 transitions. Second operand 8 states. [2020-12-22 08:26:02,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:02,898 INFO L93 Difference]: Finished difference Result 92836 states and 135535 transitions. [2020-12-22 08:26:02,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 08:26:02,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-12-22 08:26:02,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:02,985 INFO L225 Difference]: With dead ends: 92836 [2020-12-22 08:26:02,986 INFO L226 Difference]: Without dead ends: 64633 [2020-12-22 08:26:03,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-12-22 08:26:03,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64633 states. [2020-12-22 08:26:08,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64633 to 31711. [2020-12-22 08:26:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31711 states. [2020-12-22 08:26:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31711 states to 31711 states and 45818 transitions. [2020-12-22 08:26:08,711 INFO L78 Accepts]: Start accepts. Automaton has 31711 states and 45818 transitions. Word has length 68 [2020-12-22 08:26:08,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:08,711 INFO L481 AbstractCegarLoop]: Abstraction has 31711 states and 45818 transitions. [2020-12-22 08:26:08,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:26:08,712 INFO L276 IsEmpty]: Start isEmpty. Operand 31711 states and 45818 transitions. [2020-12-22 08:26:08,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:26:08,719 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:08,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:26:08,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:26:08,719 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:08,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:08,720 INFO L82 PathProgramCache]: Analyzing trace with hash 601134174, now seen corresponding path program 1 times [2020-12-22 08:26:08,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:08,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560156451] [2020-12-22 08:26:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:26:09,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560156451] [2020-12-22 08:26:09,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:09,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:26:09,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794252199] [2020-12-22 08:26:09,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:26:09,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:09,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:26:09,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:26:09,085 INFO L87 Difference]: Start difference. First operand 31711 states and 45818 transitions. Second operand 12 states. [2020-12-22 08:26:31,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:31,949 INFO L93 Difference]: Finished difference Result 143350 states and 210419 transitions. [2020-12-22 08:26:31,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:26:31,950 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-12-22 08:26:31,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:32,125 INFO L225 Difference]: With dead ends: 143350 [2020-12-22 08:26:32,125 INFO L226 Difference]: Without dead ends: 115921 [2020-12-22 08:26:32,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:26:32,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115921 states. [2020-12-22 08:26:38,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115921 to 31078. [2020-12-22 08:26:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31078 states. [2020-12-22 08:26:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31078 states to 31078 states and 45007 transitions. [2020-12-22 08:26:38,690 INFO L78 Accepts]: Start accepts. Automaton has 31078 states and 45007 transitions. Word has length 69 [2020-12-22 08:26:38,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:38,691 INFO L481 AbstractCegarLoop]: Abstraction has 31078 states and 45007 transitions. [2020-12-22 08:26:38,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:26:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 31078 states and 45007 transitions. [2020-12-22 08:26:38,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:26:38,696 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:38,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:26:38,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:26:38,696 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:38,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:38,697 INFO L82 PathProgramCache]: Analyzing trace with hash -10442599, now seen corresponding path program 1 times [2020-12-22 08:26:38,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:38,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042670939] [2020-12-22 08:26:38,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:26:39,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042670939] [2020-12-22 08:26:39,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:39,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-22 08:26:39,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020324973] [2020-12-22 08:26:39,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-22 08:26:39,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:39,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-22 08:26:39,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-12-22 08:26:39,561 INFO L87 Difference]: Start difference. First operand 31078 states and 45007 transitions. Second operand 17 states. [2020-12-22 08:26:39,743 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-12-22 08:26:40,117 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2020-12-22 08:26:40,335 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2020-12-22 08:26:40,561 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-22 08:26:40,821 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-12-22 08:26:41,256 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-22 08:26:42,218 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-22 08:26:42,526 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-22 08:26:42,816 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-12-22 08:26:43,063 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-22 08:26:43,380 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-12-22 08:26:43,882 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-12-22 08:26:44,546 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-12-22 08:26:51,918 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-22 08:26:54,934 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44