/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 22:10:55,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 22:10:55,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 22:10:55,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 22:10:55,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 22:10:55,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 22:10:55,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 22:10:55,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 22:10:55,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 22:10:55,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 22:10:55,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 22:10:55,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 22:10:55,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 22:10:55,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 22:10:55,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 22:10:55,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 22:10:55,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 22:10:55,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 22:10:55,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 22:10:55,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 22:10:55,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 22:10:55,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 22:10:55,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 22:10:55,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 22:10:55,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 22:10:55,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 22:10:55,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 22:10:55,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 22:10:55,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-09 22:10:55,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 22:10:55,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 22:10:55,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 22:10:55,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 22:10:55,228 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 22:10:55,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 22:10:55,229 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 22:10:55,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 22:10:55,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 22:10:55,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 22:10:55,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 22:10:55,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 22:10:55,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 22:10:55,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 22:10:55,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 22:10:55,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 22:10:55,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 22:10:55,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 22:10:55,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 22:10:55,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 22:10:55,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 22:10:55,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:10:55,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 22:10:55,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 22:10:55,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 22:10:55,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 22:10:55,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 22:10:55,233 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 22:10:55,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 22:10:55,233 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 22:10:55,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 22:10:55,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 22:10:55,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 22:10:55,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 22:10:55,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 22:10:55,607 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 22:10:55,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-07-09 22:10:55,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dcd52dd0/045fe989e0764823a5be741b16ecbee9/FLAG5b466e1ff [2021-07-09 22:10:56,102 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 22:10:56,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-07-09 22:10:56,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dcd52dd0/045fe989e0764823a5be741b16ecbee9/FLAG5b466e1ff [2021-07-09 22:10:56,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dcd52dd0/045fe989e0764823a5be741b16ecbee9 [2021-07-09 22:10:56,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 22:10:56,474 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 22:10:56,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 22:10:56,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 22:10:56,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 22:10:56,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c35fe13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56, skipping insertion in model container [2021-07-09 22:10:56,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 22:10:56,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 22:10:56,645 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i[950,963] [2021-07-09 22:10:56,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:10:56,827 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 22:10:56,838 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i[950,963] [2021-07-09 22:10:56,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:10:56,916 INFO L208 MainTranslator]: Completed translation [2021-07-09 22:10:56,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56 WrapperNode [2021-07-09 22:10:56,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 22:10:56,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 22:10:56,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 22:10:56,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 22:10:56,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 22:10:56,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 22:10:56,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 22:10:56,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 22:10:56,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 22:10:56,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 22:10:56,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 22:10:56,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 22:10:56,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:10:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 22:10:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 22:10:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 22:10:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 22:10:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 22:10:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 22:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 22:10:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 22:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 22:10:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 22:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-07-09 22:10:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-07-09 22:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 22:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 22:10:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 22:10:57,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 22:10:57,036 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 22:10:57,527 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 22:10:57,528 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 22:10:57,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:10:57 BoogieIcfgContainer [2021-07-09 22:10:57,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 22:10:57,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 22:10:57,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 22:10:57,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 22:10:57,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 10:10:56" (1/3) ... [2021-07-09 22:10:57,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbffe36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:10:57, skipping insertion in model container [2021-07-09 22:10:57,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56" (2/3) ... [2021-07-09 22:10:57,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbffe36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:10:57, skipping insertion in model container [2021-07-09 22:10:57,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:10:57" (3/3) ... [2021-07-09 22:10:57,536 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2021-07-09 22:10:57,541 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 22:10:57,541 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 22:10:57,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 22:10:57,542 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 22:10:57,570 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,571 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,571 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,571 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,571 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,571 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,572 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,573 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,573 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,573 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,573 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,573 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,575 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,575 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,575 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,575 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,575 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,575 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,575 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,576 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,577 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,577 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,577 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,577 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,577 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,577 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,577 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,578 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,578 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,578 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,578 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,578 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,581 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,581 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,585 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,585 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,585 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,585 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,587 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,587 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,587 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,587 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,588 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,589 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,591 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 22:10:57,609 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-09 22:10:57,623 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:10:57,623 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:10:57,623 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:10:57,623 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:10:57,623 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:10:57,623 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:10:57,623 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:10:57,623 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 22:10:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 28882 states, 24122 states have (on average 2.237957051654092) internal successors, (53984), 28881 states have internal predecessors, (53984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:10:59,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-09 22:10:59,857 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:10:59,858 INFO L508 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] [2021-07-09 22:10:59,859 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:10:59,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:10:59,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1675625032, now seen corresponding path program 1 times [2021-07-09 22:10:59,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:10:59,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662012612] [2021-07-09 22:10:59,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:00,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:00,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:00,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:00,347 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:00,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:00,365 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:00,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:00,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:00,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:00,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:00,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:00,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:00,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:00,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:00,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662012612] [2021-07-09 22:11:00,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662012612] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:00,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:00,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:00,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204214170] [2021-07-09 22:11:00,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:00,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:00,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:00,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:00,500 INFO L87 Difference]: Start difference. First operand has 28882 states, 24122 states have (on average 2.237957051654092) internal successors, (53984), 28881 states have internal predecessors, (53984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:01,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:01,210 INFO L93 Difference]: Finished difference Result 53186 states and 102705 transitions. [2021-07-09 22:11:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:01,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-07-09 22:11:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:01,338 INFO L225 Difference]: With dead ends: 53186 [2021-07-09 22:11:01,338 INFO L226 Difference]: Without dead ends: 17528 [2021-07-09 22:11:01,339 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 184.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:01,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17528 states. [2021-07-09 22:11:02,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17528 to 12136. [2021-07-09 22:11:02,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12136 states, 11926 states have (on average 2.506037229582425) internal successors, (29887), 12135 states have internal predecessors, (29887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12136 states to 12136 states and 29887 transitions. [2021-07-09 22:11:02,093 INFO L78 Accepts]: Start accepts. Automaton has 12136 states and 29887 transitions. Word has length 55 [2021-07-09 22:11:02,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:02,094 INFO L482 AbstractCegarLoop]: Abstraction has 12136 states and 29887 transitions. [2021-07-09 22:11:02,094 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:02,094 INFO L276 IsEmpty]: Start isEmpty. Operand 12136 states and 29887 transitions. [2021-07-09 22:11:02,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-09 22:11:02,107 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:02,107 INFO L508 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] [2021-07-09 22:11:02,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 22:11:02,107 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:02,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:02,108 INFO L82 PathProgramCache]: Analyzing trace with hash 296761689, now seen corresponding path program 1 times [2021-07-09 22:11:02,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:02,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483721342] [2021-07-09 22:11:02,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:02,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:02,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:02,172 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:02,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:02,192 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:02,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:02,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:02,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:02,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:02,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:02,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483721342] [2021-07-09 22:11:02,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483721342] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:02,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:02,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:02,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713307645] [2021-07-09 22:11:02,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:02,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:02,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:02,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:02,241 INFO L87 Difference]: Start difference. First operand 12136 states and 29887 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:02,702 INFO L93 Difference]: Finished difference Result 21304 states and 55052 transitions. [2021-07-09 22:11:02,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:02,705 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-07-09 22:11:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:02,763 INFO L225 Difference]: With dead ends: 21304 [2021-07-09 22:11:02,763 INFO L226 Difference]: Without dead ends: 15448 [2021-07-09 22:11:02,764 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 162.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. [2021-07-09 22:11:03,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15448 to 10952. [2021-07-09 22:11:03,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10952 states, 10742 states have (on average 2.516663563582201) internal successors, (27034), 10951 states have internal predecessors, (27034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:03,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10952 states to 10952 states and 27034 transitions. [2021-07-09 22:11:03,222 INFO L78 Accepts]: Start accepts. Automaton has 10952 states and 27034 transitions. Word has length 57 [2021-07-09 22:11:03,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:03,222 INFO L482 AbstractCegarLoop]: Abstraction has 10952 states and 27034 transitions. [2021-07-09 22:11:03,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:03,223 INFO L276 IsEmpty]: Start isEmpty. Operand 10952 states and 27034 transitions. [2021-07-09 22:11:03,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-09 22:11:03,238 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:03,239 INFO L508 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] [2021-07-09 22:11:03,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 22:11:03,239 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:03,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:03,240 INFO L82 PathProgramCache]: Analyzing trace with hash 281837946, now seen corresponding path program 1 times [2021-07-09 22:11:03,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:03,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168546813] [2021-07-09 22:11:03,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:03,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:03,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:03,297 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:03,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:03,307 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:03,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:03,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:03,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:03,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:03,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:03,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168546813] [2021-07-09 22:11:03,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168546813] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:03,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:03,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:03,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358404316] [2021-07-09 22:11:03,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:03,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:03,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:03,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:03,344 INFO L87 Difference]: Start difference. First operand 10952 states and 27034 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:03,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:03,715 INFO L93 Difference]: Finished difference Result 16920 states and 43774 transitions. [2021-07-09 22:11:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:03,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-07-09 22:11:03,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:03,766 INFO L225 Difference]: With dead ends: 16920 [2021-07-09 22:11:03,766 INFO L226 Difference]: Without dead ends: 13442 [2021-07-09 22:11:03,767 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 167.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:03,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13442 states. [2021-07-09 22:11:04,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13442 to 9002. [2021-07-09 22:11:04,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 8852 states have (on average 2.5184139177586986) internal successors, (22293), 9001 states have internal predecessors, (22293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 22293 transitions. [2021-07-09 22:11:04,114 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 22293 transitions. Word has length 59 [2021-07-09 22:11:04,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:04,114 INFO L482 AbstractCegarLoop]: Abstraction has 9002 states and 22293 transitions. [2021-07-09 22:11:04,114 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:04,114 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 22293 transitions. [2021-07-09 22:11:04,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 22:11:04,127 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:04,127 INFO L508 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] [2021-07-09 22:11:04,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 22:11:04,127 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:04,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:04,128 INFO L82 PathProgramCache]: Analyzing trace with hash -684603675, now seen corresponding path program 1 times [2021-07-09 22:11:04,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:04,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713902503] [2021-07-09 22:11:04,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:04,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:04,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:04,167 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:04,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:04,177 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:04,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:04,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:04,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:04,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:04,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:04,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713902503] [2021-07-09 22:11:04,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713902503] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:04,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:04,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:04,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683637884] [2021-07-09 22:11:04,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:04,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:04,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:04,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:04,211 INFO L87 Difference]: Start difference. First operand 9002 states and 22293 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:04,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:04,468 INFO L93 Difference]: Finished difference Result 16586 states and 46721 transitions. [2021-07-09 22:11:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:04,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 22:11:04,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:04,507 INFO L225 Difference]: With dead ends: 16586 [2021-07-09 22:11:04,507 INFO L226 Difference]: Without dead ends: 11618 [2021-07-09 22:11:04,508 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 159.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:04,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11618 states. [2021-07-09 22:11:04,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11618 to 7274. [2021-07-09 22:11:04,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7274 states, 7124 states have (on average 2.571027512633352) internal successors, (18316), 7273 states have internal predecessors, (18316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:04,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7274 states to 7274 states and 18316 transitions. [2021-07-09 22:11:04,808 INFO L78 Accepts]: Start accepts. Automaton has 7274 states and 18316 transitions. Word has length 60 [2021-07-09 22:11:04,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:04,809 INFO L482 AbstractCegarLoop]: Abstraction has 7274 states and 18316 transitions. [2021-07-09 22:11:04,809 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 7274 states and 18316 transitions. [2021-07-09 22:11:04,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-09 22:11:04,822 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:04,822 INFO L508 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] [2021-07-09 22:11:04,822 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 22:11:04,822 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:04,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:04,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1532235895, now seen corresponding path program 1 times [2021-07-09 22:11:04,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:04,823 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579098660] [2021-07-09 22:11:04,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:04,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:04,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:04,868 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:04,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:04,877 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:04,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:04,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:04,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:04,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:04,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:04,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:04,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579098660] [2021-07-09 22:11:04,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579098660] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:04,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:04,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 22:11:04,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397169738] [2021-07-09 22:11:04,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 22:11:04,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:04,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 22:11:04,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-09 22:11:04,919 INFO L87 Difference]: Start difference. First operand 7274 states and 18316 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:05,110 INFO L93 Difference]: Finished difference Result 14998 states and 38860 transitions. [2021-07-09 22:11:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 22:11:05,110 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-07-09 22:11:05,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:05,138 INFO L225 Difference]: With dead ends: 14998 [2021-07-09 22:11:05,139 INFO L226 Difference]: Without dead ends: 9538 [2021-07-09 22:11:05,139 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 116.0ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:05,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9538 states. [2021-07-09 22:11:05,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9538 to 6594. [2021-07-09 22:11:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6594 states, 6454 states have (on average 2.5980787108769756) internal successors, (16768), 6593 states have internal predecessors, (16768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6594 states to 6594 states and 16768 transitions. [2021-07-09 22:11:05,420 INFO L78 Accepts]: Start accepts. Automaton has 6594 states and 16768 transitions. Word has length 61 [2021-07-09 22:11:05,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:05,423 INFO L482 AbstractCegarLoop]: Abstraction has 6594 states and 16768 transitions. [2021-07-09 22:11:05,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 6594 states and 16768 transitions. [2021-07-09 22:11:05,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 22:11:05,436 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:05,436 INFO L508 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] [2021-07-09 22:11:05,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 22:11:05,437 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:05,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:05,437 INFO L82 PathProgramCache]: Analyzing trace with hash -697267505, now seen corresponding path program 1 times [2021-07-09 22:11:05,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:05,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445572750] [2021-07-09 22:11:05,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:05,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:05,515 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:05,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:05,532 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:05,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:05,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:05,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:05,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:05,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:05,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445572750] [2021-07-09 22:11:05,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445572750] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:05,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:05,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:05,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865309373] [2021-07-09 22:11:05,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:05,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:05,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:05,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:05,574 INFO L87 Difference]: Start difference. First operand 6594 states and 16768 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:05,829 INFO L93 Difference]: Finished difference Result 13650 states and 37309 transitions. [2021-07-09 22:11:05,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:05,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 22:11:05,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:05,855 INFO L225 Difference]: With dead ends: 13650 [2021-07-09 22:11:05,855 INFO L226 Difference]: Without dead ends: 8430 [2021-07-09 22:11:05,856 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 172.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:05,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2021-07-09 22:11:05,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 5230. [2021-07-09 22:11:06,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5130 states have (on average 2.585964912280702) internal successors, (13266), 5229 states have internal predecessors, (13266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 13266 transitions. [2021-07-09 22:11:06,021 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 13266 transitions. Word has length 62 [2021-07-09 22:11:06,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:06,021 INFO L482 AbstractCegarLoop]: Abstraction has 5230 states and 13266 transitions. [2021-07-09 22:11:06,021 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 13266 transitions. [2021-07-09 22:11:06,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-09 22:11:06,035 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:06,035 INFO L508 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] [2021-07-09 22:11:06,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 22:11:06,035 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:06,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:06,036 INFO L82 PathProgramCache]: Analyzing trace with hash -510748292, now seen corresponding path program 1 times [2021-07-09 22:11:06,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:06,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558765423] [2021-07-09 22:11:06,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:06,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,098 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:06,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:06,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:06,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:06,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:06,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:06,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558765423] [2021-07-09 22:11:06,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558765423] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:06,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:06,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:06,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504317255] [2021-07-09 22:11:06,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:06,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:06,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:06,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:06,139 INFO L87 Difference]: Start difference. First operand 5230 states and 13266 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:06,250 INFO L93 Difference]: Finished difference Result 6804 states and 17853 transitions. [2021-07-09 22:11:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 22:11:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-07-09 22:11:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:06,258 INFO L225 Difference]: With dead ends: 6804 [2021-07-09 22:11:06,258 INFO L226 Difference]: Without dead ends: 2662 [2021-07-09 22:11:06,258 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 85.1ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:11:06,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2021-07-09 22:11:06,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2662. [2021-07-09 22:11:06,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2662 states, 2562 states have (on average 2.7845433255269323) internal successors, (7134), 2661 states have internal predecessors, (7134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2662 states to 2662 states and 7134 transitions. [2021-07-09 22:11:06,321 INFO L78 Accepts]: Start accepts. Automaton has 2662 states and 7134 transitions. Word has length 63 [2021-07-09 22:11:06,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:06,321 INFO L482 AbstractCegarLoop]: Abstraction has 2662 states and 7134 transitions. [2021-07-09 22:11:06,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2662 states and 7134 transitions. [2021-07-09 22:11:06,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-09 22:11:06,326 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:06,326 INFO L508 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] [2021-07-09 22:11:06,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 22:11:06,326 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:06,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:06,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1550253034, now seen corresponding path program 2 times [2021-07-09 22:11:06,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:06,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554351117] [2021-07-09 22:11:06,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:06,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,368 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:11:06,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:11:06,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:11:06,397 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:11:06,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:06,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:06,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:06,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554351117] [2021-07-09 22:11:06,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554351117] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:06,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:06,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:11:06,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811991504] [2021-07-09 22:11:06,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:11:06,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:06,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:11:06,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:11:06,410 INFO L87 Difference]: Start difference. First operand 2662 states and 7134 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:06,535 INFO L93 Difference]: Finished difference Result 3335 states and 8433 transitions. [2021-07-09 22:11:06,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:11:06,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-07-09 22:11:06,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:06,543 INFO L225 Difference]: With dead ends: 3335 [2021-07-09 22:11:06,543 INFO L226 Difference]: Without dead ends: 2523 [2021-07-09 22:11:06,544 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 93.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:11:06,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2021-07-09 22:11:06,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2523. [2021-07-09 22:11:06,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2423 states have (on average 2.8126289723483286) internal successors, (6815), 2522 states have internal predecessors, (6815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 6815 transitions. [2021-07-09 22:11:06,607 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 6815 transitions. Word has length 63 [2021-07-09 22:11:06,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:06,608 INFO L482 AbstractCegarLoop]: Abstraction has 2523 states and 6815 transitions. [2021-07-09 22:11:06,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 6815 transitions. [2021-07-09 22:11:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-09 22:11:06,612 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:06,612 INFO L508 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] [2021-07-09 22:11:06,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 22:11:06,613 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:06,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:06,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1804419905, now seen corresponding path program 1 times [2021-07-09 22:11:06,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:06,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584499797] [2021-07-09 22:11:06,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:06,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,660 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:11:06,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:11:06,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:11:06,688 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:11:06,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:06,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:06,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:06,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584499797] [2021-07-09 22:11:06,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584499797] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:06,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:06,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:06,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752235197] [2021-07-09 22:11:06,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:06,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:06,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:06,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:06,702 INFO L87 Difference]: Start difference. First operand 2523 states and 6815 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:06,846 INFO L93 Difference]: Finished difference Result 2638 states and 6532 transitions. [2021-07-09 22:11:06,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:11:06,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-07-09 22:11:06,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:06,852 INFO L225 Difference]: With dead ends: 2638 [2021-07-09 22:11:06,852 INFO L226 Difference]: Without dead ends: 1912 [2021-07-09 22:11:06,852 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 108.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 22:11:06,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2021-07-09 22:11:06,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2021-07-09 22:11:06,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1816 states have (on average 2.782488986784141) internal successors, (5053), 1911 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 5053 transitions. [2021-07-09 22:11:06,898 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 5053 transitions. Word has length 64 [2021-07-09 22:11:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:06,898 INFO L482 AbstractCegarLoop]: Abstraction has 1912 states and 5053 transitions. [2021-07-09 22:11:06,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 5053 transitions. [2021-07-09 22:11:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-09 22:11:06,901 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:06,902 INFO L508 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] [2021-07-09 22:11:06,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 22:11:06,902 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:06,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:06,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1744205855, now seen corresponding path program 1 times [2021-07-09 22:11:06,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:06,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361257688] [2021-07-09 22:11:06,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:06,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,956 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:11:06,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:11:06,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:11:06,989 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:11:06,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:06,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:07,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:07,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:07,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361257688] [2021-07-09 22:11:07,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361257688] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:07,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:07,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 22:11:07,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487916867] [2021-07-09 22:11:07,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 22:11:07,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:07,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 22:11:07,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 22:11:07,002 INFO L87 Difference]: Start difference. First operand 1912 states and 5053 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:07,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:07,181 INFO L93 Difference]: Finished difference Result 1255 states and 2721 transitions. [2021-07-09 22:11:07,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 22:11:07,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-07-09 22:11:07,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:07,184 INFO L225 Difference]: With dead ends: 1255 [2021-07-09 22:11:07,184 INFO L226 Difference]: Without dead ends: 787 [2021-07-09 22:11:07,184 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 147.2ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:07,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-07-09 22:11:07,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2021-07-09 22:11:07,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 724 states have (on average 2.4378453038674035) internal successors, (1765), 786 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1765 transitions. [2021-07-09 22:11:07,198 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1765 transitions. Word has length 65 [2021-07-09 22:11:07,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:07,199 INFO L482 AbstractCegarLoop]: Abstraction has 787 states and 1765 transitions. [2021-07-09 22:11:07,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:07,199 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1765 transitions. [2021-07-09 22:11:07,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-09 22:11:07,200 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:07,200 INFO L508 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] [2021-07-09 22:11:07,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 22:11:07,201 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:07,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:07,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1577682012, now seen corresponding path program 1 times [2021-07-09 22:11:07,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:07,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997095337] [2021-07-09 22:11:07,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:07,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:07,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:07,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:07,241 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:07,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:07,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:07,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:07,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:07,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:07,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997095337] [2021-07-09 22:11:07,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997095337] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:07,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:07,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:07,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561126176] [2021-07-09 22:11:07,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:07,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:07,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:07,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:07,280 INFO L87 Difference]: Start difference. First operand 787 states and 1765 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:07,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:07,361 INFO L93 Difference]: Finished difference Result 1253 states and 2944 transitions. [2021-07-09 22:11:07,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 22:11:07,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-09 22:11:07,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:07,363 INFO L225 Difference]: With dead ends: 1253 [2021-07-09 22:11:07,363 INFO L226 Difference]: Without dead ends: 999 [2021-07-09 22:11:07,364 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 80.1ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:11:07,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2021-07-09 22:11:07,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 783. [2021-07-09 22:11:07,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 720 states have (on average 2.436111111111111) internal successors, (1754), 782 states have internal predecessors, (1754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:07,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1754 transitions. [2021-07-09 22:11:07,380 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1754 transitions. Word has length 67 [2021-07-09 22:11:07,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:07,380 INFO L482 AbstractCegarLoop]: Abstraction has 783 states and 1754 transitions. [2021-07-09 22:11:07,381 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:07,381 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1754 transitions. [2021-07-09 22:11:07,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-09 22:11:07,382 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:07,382 INFO L508 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] [2021-07-09 22:11:07,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 22:11:07,382 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:07,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:07,383 INFO L82 PathProgramCache]: Analyzing trace with hash -2070394900, now seen corresponding path program 2 times [2021-07-09 22:11:07,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:07,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629322534] [2021-07-09 22:11:07,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:07,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:07,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:07,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:07,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:07,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:07,439 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:11:07,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:11:07,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:11:07,466 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:11:07,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:07,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:07,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:07,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:07,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629322534] [2021-07-09 22:11:07,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629322534] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:07,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:07,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 22:11:07,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936458369] [2021-07-09 22:11:07,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 22:11:07,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:07,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 22:11:07,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-09 22:11:07,479 INFO L87 Difference]: Start difference. First operand 783 states and 1754 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:07,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:07,581 INFO L93 Difference]: Finished difference Result 261 states and 425 transitions. [2021-07-09 22:11:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:11:07,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-09 22:11:07,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:07,582 INFO L225 Difference]: With dead ends: 261 [2021-07-09 22:11:07,582 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 22:11:07,582 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 113.9ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 22:11:07,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 22:11:07,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:07,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 22:11:07,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2021-07-09 22:11:07,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:07,583 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 22:11:07,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:07,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 22:11:07,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 22:11:07,584 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 22:11:07,585 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 22:11:07,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 10:11:07 BasicIcfg [2021-07-09 22:11:07,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 22:11:07,587 INFO L168 Benchmark]: Toolchain (without parser) took 11113.82 ms. Allocated memory was 180.4 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 144.1 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 913.0 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:07,588 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 180.4 MB. Free memory is still 162.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:11:07,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.93 ms. Allocated memory is still 180.4 MB. Free memory was 143.9 MB in the beginning and 155.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:07,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.88 ms. Allocated memory is still 180.4 MB. Free memory was 155.5 MB in the beginning and 153.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:07,588 INFO L168 Benchmark]: Boogie Preprocessor took 17.58 ms. Allocated memory is still 180.4 MB. Free memory was 153.4 MB in the beginning and 151.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:07,589 INFO L168 Benchmark]: RCFGBuilder took 554.01 ms. Allocated memory is still 180.4 MB. Free memory was 151.9 MB in the beginning and 126.2 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:07,589 INFO L168 Benchmark]: TraceAbstraction took 10055.41 ms. Allocated memory was 180.4 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 125.6 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 894.5 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:07,590 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 180.4 MB. Free memory is still 162.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 438.93 ms. Allocated memory is still 180.4 MB. Free memory was 143.9 MB in the beginning and 155.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.88 ms. Allocated memory is still 180.4 MB. Free memory was 155.5 MB in the beginning and 153.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.58 ms. Allocated memory is still 180.4 MB. Free memory was 153.4 MB in the beginning and 151.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 554.01 ms. Allocated memory is still 180.4 MB. Free memory was 151.9 MB in the beginning and 126.2 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10055.41 ms. Allocated memory was 180.4 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 125.6 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 894.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 135326, positive: 131075, positive conditional: 131075, positive unconditional: 0, negative: 4251, negative conditional: 4251, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 134863, positive: 131075, positive conditional: 0, positive unconditional: 131075, negative: 3788, negative conditional: 0, negative unconditional: 3788, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 976, positive: 950, positive conditional: 0, positive unconditional: 950, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 976, positive: 943, positive conditional: 0, positive unconditional: 943, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 87, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 134863, positive: 130125, positive conditional: 0, positive unconditional: 130125, negative: 3762, negative conditional: 0, negative unconditional: 3762, unknown: 976, unknown conditional: 0, unknown unconditional: 976] , Statistics on independence cache: Total cache size (in pairs): 976, Positive cache size: 950, Positive conditional cache size: 0, Positive unconditional cache size: 950, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Independence queries for same thread: 463 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 126 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9963.3ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 270.5ms, AutomataDifference: 3435.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2054.9ms, PartialOrderReductionTime: 2038.4ms, HoareTripleCheckerStatistics: 1374 SDtfs, 2222 SDslu, 4628 SDs, 0 SdLazy, 587 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 470.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1590.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28882occurred in iteration=0, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2495.4ms AutomataMinimizationTime, 12 MinimizatonAttempts, 25032 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.8ms SsaConstructionTime, 217.9ms SatisfiabilityAnalysisTime, 1156.8ms InterpolantComputationTime, 743 NumberOfCodeBlocks, 743 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 731 ConstructedInterpolants, 0 QuantifiedInterpolants, 2489 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...