/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/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 22:13:38,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 22:13:38,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 22:13:38,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 22:13:38,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 22:13:38,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 22:13:38,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 22:13:38,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 22:13:38,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 22:13:38,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 22:13:38,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 22:13:38,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 22:13:38,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 22:13:38,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 22:13:38,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 22:13:38,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 22:13:38,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 22:13:38,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 22:13:38,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 22:13:38,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 22:13:38,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 22:13:38,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 22:13:38,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 22:13:38,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 22:13:38,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 22:13:38,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 22:13:38,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 22:13:38,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 22:13:38,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 22:13:38,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 22:13:38,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 22:13:38,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 22:13:38,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 22:13:38,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 22:13:38,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 22:13:38,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 22:13:38,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 22:13:38,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 22:13:38,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 22:13:38,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 22:13:38,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 22:13:38,284 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 22:13:38,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 22:13:38,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 22:13:38,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 22:13:38,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 22:13:38,321 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 22:13:38,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 22:13:38,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 22:13:38,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 22:13:38,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 22:13:38,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 22:13:38,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 22:13:38,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 22:13:38,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 22:13:38,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 22:13:38,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 22:13:38,324 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 22:13:38,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 22:13:38,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 22:13:38,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 22:13:38,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 22:13:38,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 22:13:38,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:13:38,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 22:13:38,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 22:13:38,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 22:13:38,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 22:13:38,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 22:13:38,326 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 22:13:38,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 22:13:38,326 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 22:13:38,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 22:13:38,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 22:13:38,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 22:13:38,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 22:13:38,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 22:13:38,646 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 22:13:38,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2021-07-09 22:13:38,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29964efe2/6c30fef5734144ff8d26393aee517c78/FLAG5892639f0 [2021-07-09 22:13:39,230 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 22:13:39,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2021-07-09 22:13:39,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29964efe2/6c30fef5734144ff8d26393aee517c78/FLAG5892639f0 [2021-07-09 22:13:39,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29964efe2/6c30fef5734144ff8d26393aee517c78 [2021-07-09 22:13:39,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 22:13:39,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 22:13:39,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 22:13:39,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 22:13:39,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 22:13:39,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:13:39" (1/1) ... [2021-07-09 22:13:39,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214c44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:39, skipping insertion in model container [2021-07-09 22:13:39,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:13:39" (1/1) ... [2021-07-09 22:13:39,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 22:13:39,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 22:13:39,932 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/safe037_tso.oepc.i[950,963] [2021-07-09 22:13:40,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:13:40,135 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 22:13:40,146 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/safe037_tso.oepc.i[950,963] [2021-07-09 22:13:40,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:13:40,226 INFO L208 MainTranslator]: Completed translation [2021-07-09 22:13:40,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40 WrapperNode [2021-07-09 22:13:40,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 22:13:40,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 22:13:40,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 22:13:40,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 22:13:40,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (1/1) ... [2021-07-09 22:13:40,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (1/1) ... [2021-07-09 22:13:40,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 22:13:40,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 22:13:40,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 22:13:40,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 22:13:40,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (1/1) ... [2021-07-09 22:13:40,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (1/1) ... [2021-07-09 22:13:40,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (1/1) ... [2021-07-09 22:13:40,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (1/1) ... [2021-07-09 22:13:40,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (1/1) ... [2021-07-09 22:13:40,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (1/1) ... [2021-07-09 22:13:40,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (1/1) ... [2021-07-09 22:13:40,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 22:13:40,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 22:13:40,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 22:13:40,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 22:13:40,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (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 22:13:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 22:13:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 22:13:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 22:13:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 22:13:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 22:13:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 22:13:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 22:13:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 22:13:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 22:13:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 22:13:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 22:13:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 22:13:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 22:13:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 22:13:40,408 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 22:13:40,822 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 22:13:40,823 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 22:13:40,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:13:40 BoogieIcfgContainer [2021-07-09 22:13:40,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 22:13:40,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 22:13:40,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 22:13:40,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 22:13:40,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 10:13:39" (1/3) ... [2021-07-09 22:13:40,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2f570d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:13:40, skipping insertion in model container [2021-07-09 22:13:40,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:13:40" (2/3) ... [2021-07-09 22:13:40,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2f570d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:13:40, skipping insertion in model container [2021-07-09 22:13:40,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:13:40" (3/3) ... [2021-07-09 22:13:40,831 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2021-07-09 22:13:40,837 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 22:13:40,837 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 22:13:40,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 22:13:40,838 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 22:13:40,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,861 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,862 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,862 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,862 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,862 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,862 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,862 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,863 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,864 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,864 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,864 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,864 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,865 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,866 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,866 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,866 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,866 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,866 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,866 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,867 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,867 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,867 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,869 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,870 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,874 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,874 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,877 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:13:40,878 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 22:13:40,899 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 22:13:40,914 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:13:40,915 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:13:40,915 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:13:40,915 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:13:40,915 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:13:40,915 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:13:40,915 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:13:40,915 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 22:13:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 4769 states have (on average 1.8863493394841686) internal successors, (8996), 5559 states have internal predecessors, (8996), 0 states have call successors, (0), 0 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 22:13:41,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-07-09 22:13:41,512 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:41,513 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] [2021-07-09 22:13:41,514 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:41,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:41,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1743011939, now seen corresponding path program 1 times [2021-07-09 22:13:41,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:41,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083222217] [2021-07-09 22:13:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:41,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:41,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:41,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:41,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:41,812 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:13:41,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:13:41,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:41,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:13:41,867 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:13:41,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:41,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:41,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:41,880 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 22:13:41,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:41,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083222217] [2021-07-09 22:13:41,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083222217] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:41,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:41,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:13:41,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379912898] [2021-07-09 22:13:41,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:13:41,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:41,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:13:41,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:13:41,926 INFO L87 Difference]: Start difference. First operand has 5560 states, 4769 states have (on average 1.8863493394841686) internal successors, (8996), 5559 states have internal predecessors, (8996), 0 states have call successors, (0), 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 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 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 22:13:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:42,275 INFO L93 Difference]: Finished difference Result 6507 states and 10074 transitions. [2021-07-09 22:13:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:13:42,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2021-07-09 22:13:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:42,316 INFO L225 Difference]: With dead ends: 6507 [2021-07-09 22:13:42,317 INFO L226 Difference]: Without dead ends: 2373 [2021-07-09 22:13:42,318 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 182.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:13:42,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2021-07-09 22:13:42,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2373. [2021-07-09 22:13:42,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 2324 states have (on average 1.9789156626506024) internal successors, (4599), 2372 states have internal predecessors, (4599), 0 states have call successors, (0), 0 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 22:13:42,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 4599 transitions. [2021-07-09 22:13:42,475 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 4599 transitions. Word has length 50 [2021-07-09 22:13:42,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:42,476 INFO L482 AbstractCegarLoop]: Abstraction has 2373 states and 4599 transitions. [2021-07-09 22:13:42,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 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 22:13:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 4599 transitions. [2021-07-09 22:13:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-09 22:13:42,481 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:42,482 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] [2021-07-09 22:13:42,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 22:13:42,482 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:42,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:42,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1795798875, now seen corresponding path program 1 times [2021-07-09 22:13:42,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:42,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392471959] [2021-07-09 22:13:42,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:42,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:42,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:42,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:42,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:42,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:42,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:42,577 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:13:42,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:13:42,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:42,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:13:42,619 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:13:42,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:42,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:42,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:42,637 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 22:13:42,637 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:42,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392471959] [2021-07-09 22:13:42,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392471959] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:42,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:42,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:13:42,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482054521] [2021-07-09 22:13:42,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:13:42,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:42,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:13:42,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:13:42,643 INFO L87 Difference]: Start difference. First operand 2373 states and 4599 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 22:13:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:42,842 INFO L93 Difference]: Finished difference Result 1833 states and 3394 transitions. [2021-07-09 22:13:42,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:13:42,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2021-07-09 22:13:42,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:42,849 INFO L225 Difference]: With dead ends: 1833 [2021-07-09 22:13:42,850 INFO L226 Difference]: Without dead ends: 1085 [2021-07-09 22:13:42,851 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 140.7ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 22:13:42,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2021-07-09 22:13:42,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1085. [2021-07-09 22:13:42,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 1052 states have (on average 1.9334600760456273) internal successors, (2034), 1084 states have internal predecessors, (2034), 0 states have call successors, (0), 0 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 22:13:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 2034 transitions. [2021-07-09 22:13:42,878 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 2034 transitions. Word has length 54 [2021-07-09 22:13:42,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:42,878 INFO L482 AbstractCegarLoop]: Abstraction has 1085 states and 2034 transitions. [2021-07-09 22:13:42,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 22:13:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 2034 transitions. [2021-07-09 22:13:42,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 22:13:42,884 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:42,884 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] [2021-07-09 22:13:42,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 22:13:42,884 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:42,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:42,892 INFO L82 PathProgramCache]: Analyzing trace with hash -835920231, now seen corresponding path program 1 times [2021-07-09 22:13:42,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:42,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514700009] [2021-07-09 22:13:42,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:42,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:42,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:42,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:42,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:42,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:42,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:43,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:43,006 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:13:43,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:13:43,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:13:43,048 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:13:43,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:43,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:43,064 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 22:13:43,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:43,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514700009] [2021-07-09 22:13:43,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514700009] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:43,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:43,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 22:13:43,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741438733] [2021-07-09 22:13:43,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 22:13:43,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:43,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 22:13:43,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 22:13:43,067 INFO L87 Difference]: Start difference. First operand 1085 states and 2034 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:43,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:43,246 INFO L93 Difference]: Finished difference Result 653 states and 1154 transitions. [2021-07-09 22:13:43,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 22:13:43,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-07-09 22:13:43,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:43,248 INFO L225 Difference]: With dead ends: 653 [2021-07-09 22:13:43,248 INFO L226 Difference]: Without dead ends: 316 [2021-07-09 22:13:43,249 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 147.4ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:13:43,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-07-09 22:13:43,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-07-09 22:13:43,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 307 states have (on average 1.710097719869707) internal successors, (525), 315 states have internal predecessors, (525), 0 states have call successors, (0), 0 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 22:13:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 525 transitions. [2021-07-09 22:13:43,256 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 525 transitions. Word has length 58 [2021-07-09 22:13:43,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:43,256 INFO L482 AbstractCegarLoop]: Abstraction has 316 states and 525 transitions. [2021-07-09 22:13:43,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:13:43,256 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 525 transitions. [2021-07-09 22:13:43,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 22:13:43,257 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:43,258 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 22:13:43,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 22:13:43,258 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:43,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:43,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1013019991, now seen corresponding path program 1 times [2021-07-09 22:13:43,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:43,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241805203] [2021-07-09 22:13:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:43,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:43,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:43,356 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-07-09 22:13:43,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:13:43,370 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:13:43,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:13:43,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:43,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:43,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:43,416 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 22:13:43,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:43,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241805203] [2021-07-09 22:13:43,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241805203] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:43,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:43,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:13:43,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423642587] [2021-07-09 22:13:43,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:13:43,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:43,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:13:43,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:13:43,419 INFO L87 Difference]: Start difference. First operand 316 states and 525 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 22:13:43,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:43,525 INFO L93 Difference]: Finished difference Result 436 states and 767 transitions. [2021-07-09 22:13:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 22:13:43,525 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 22:13:43,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:43,527 INFO L225 Difference]: With dead ends: 436 [2021-07-09 22:13:43,527 INFO L226 Difference]: Without dead ends: 282 [2021-07-09 22:13:43,528 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 117.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:13:43,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-07-09 22:13:43,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 268. [2021-07-09 22:13:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 259 states have (on average 1.718146718146718) internal successors, (445), 267 states have internal predecessors, (445), 0 states have call successors, (0), 0 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 22:13:43,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 445 transitions. [2021-07-09 22:13:43,535 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 445 transitions. Word has length 62 [2021-07-09 22:13:43,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:43,535 INFO L482 AbstractCegarLoop]: Abstraction has 268 states and 445 transitions. [2021-07-09 22:13:43,535 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 22:13:43,535 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 445 transitions. [2021-07-09 22:13:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 22:13:43,537 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:43,538 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 22:13:43,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 22:13:43,538 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:43,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:43,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1490868039, now seen corresponding path program 2 times [2021-07-09 22:13:43,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:43,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358840516] [2021-07-09 22:13:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:43,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:43,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:43,594 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-07-09 22:13:43,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:13:43,607 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:13:43,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:13:43,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:43,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:43,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:43,655 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 22:13:43,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:43,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358840516] [2021-07-09 22:13:43,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358840516] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:43,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:43,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:13:43,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470642937] [2021-07-09 22:13:43,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:13:43,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:43,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:13:43,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:13:43,657 INFO L87 Difference]: Start difference. First operand 268 states and 445 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 22:13:43,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:43,786 INFO L93 Difference]: Finished difference Result 382 states and 681 transitions. [2021-07-09 22:13:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 22:13:43,787 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 22:13:43,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:43,788 INFO L225 Difference]: With dead ends: 382 [2021-07-09 22:13:43,788 INFO L226 Difference]: Without dead ends: 232 [2021-07-09 22:13:43,788 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 127.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:13:43,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-07-09 22:13:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 224. [2021-07-09 22:13:43,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 215 states have (on average 1.7627906976744185) internal successors, (379), 223 states have internal predecessors, (379), 0 states have call successors, (0), 0 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 22:13:43,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 379 transitions. [2021-07-09 22:13:43,793 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 379 transitions. Word has length 62 [2021-07-09 22:13:43,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:43,793 INFO L482 AbstractCegarLoop]: Abstraction has 224 states and 379 transitions. [2021-07-09 22:13:43,794 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 22:13:43,794 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 379 transitions. [2021-07-09 22:13:43,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 22:13:43,794 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:43,795 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 22:13:43,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 22:13:43,795 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:43,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:43,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1170079943, now seen corresponding path program 3 times [2021-07-09 22:13:43,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:43,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967832196] [2021-07-09 22:13:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:43,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:43,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:43,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:43,885 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-07-09 22:13:43,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:13:43,897 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:13:43,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:13:43,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:43,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:43,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:43,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:43,944 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 22:13:43,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:43,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967832196] [2021-07-09 22:13:43,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967832196] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:43,945 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:43,945 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 22:13:43,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877072912] [2021-07-09 22:13:43,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 22:13:43,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:43,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 22:13:43,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-09 22:13:43,947 INFO L87 Difference]: Start difference. First operand 224 states and 379 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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 22:13:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:44,034 INFO L93 Difference]: Finished difference Result 334 states and 605 transitions. [2021-07-09 22:13:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 22:13:44,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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 22:13:44,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:44,035 INFO L225 Difference]: With dead ends: 334 [2021-07-09 22:13:44,035 INFO L226 Difference]: Without dead ends: 207 [2021-07-09 22:13:44,036 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 105.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 22:13:44,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-07-09 22:13:44,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-07-09 22:13:44,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 198 states have (on average 1.7878787878787878) internal successors, (354), 206 states have internal predecessors, (354), 0 states have call successors, (0), 0 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 22:13:44,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 354 transitions. [2021-07-09 22:13:44,041 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 354 transitions. Word has length 62 [2021-07-09 22:13:44,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:44,042 INFO L482 AbstractCegarLoop]: Abstraction has 207 states and 354 transitions. [2021-07-09 22:13:44,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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 22:13:44,042 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 354 transitions. [2021-07-09 22:13:44,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 22:13:44,042 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:13:44,043 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 22:13:44,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 22:13:44,043 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:13:44,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:13:44,043 INFO L82 PathProgramCache]: Analyzing trace with hash 210816741, now seen corresponding path program 4 times [2021-07-09 22:13:44,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:13:44,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609516691] [2021-07-09 22:13:44,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:13:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:13:44,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:44,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:44,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:44,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:44,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:44,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:13:44,130 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:13:44,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:13:44,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:44,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:44,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:44,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:13:44,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:13:44,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:13:44,169 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 22:13:44,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:13:44,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609516691] [2021-07-09 22:13:44,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609516691] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:13:44,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:13:44,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:13:44,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67387413] [2021-07-09 22:13:44,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:13:44,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:13:44,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:13:44,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:13:44,172 INFO L87 Difference]: Start difference. First operand 207 states and 354 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 22:13:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:13:44,232 INFO L93 Difference]: Finished difference Result 171 states and 294 transitions. [2021-07-09 22:13:44,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 22:13:44,233 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 22:13:44,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:13:44,233 INFO L225 Difference]: With dead ends: 171 [2021-07-09 22:13:44,233 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 22:13:44,236 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 81.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:13:44,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 22:13:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 22:13:44,236 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 22:13:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 22:13:44,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2021-07-09 22:13:44,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:13:44,236 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 22:13:44,237 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 22:13:44,237 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 22:13:44,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 22:13:44,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 22:13:44,238 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 22:13:44,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 10:13:44 BasicIcfg [2021-07-09 22:13:44,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 22:13:44,243 INFO L168 Benchmark]: Toolchain (without parser) took 4511.08 ms. Allocated memory was 285.2 MB in the beginning and 342.9 MB in the end (delta: 57.7 MB). Free memory was 248.1 MB in the beginning and 228.9 MB in the end (delta: 19.2 MB). Peak memory consumption was 78.3 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:44,243 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 285.2 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:13:44,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.06 ms. Allocated memory is still 285.2 MB. Free memory was 247.9 MB in the beginning and 259.1 MB in the end (delta: -11.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:44,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.22 ms. Allocated memory is still 285.2 MB. Free memory was 259.1 MB in the beginning and 257.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:44,246 INFO L168 Benchmark]: Boogie Preprocessor took 34.12 ms. Allocated memory is still 285.2 MB. Free memory was 257.1 MB in the beginning and 255.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:44,246 INFO L168 Benchmark]: RCFGBuilder took 501.52 ms. Allocated memory is still 285.2 MB. Free memory was 255.5 MB in the beginning and 231.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:44,246 INFO L168 Benchmark]: TraceAbstraction took 3413.92 ms. Allocated memory was 285.2 MB in the beginning and 342.9 MB in the end (delta: 57.7 MB). Free memory was 231.4 MB in the beginning and 228.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 61.2 MB. Max. memory is 8.0 GB. [2021-07-09 22:13:44,254 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 285.2 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 497.06 ms. Allocated memory is still 285.2 MB. Free memory was 247.9 MB in the beginning and 259.1 MB in the end (delta: -11.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 59.22 ms. Allocated memory is still 285.2 MB. Free memory was 259.1 MB in the beginning and 257.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.12 ms. Allocated memory is still 285.2 MB. Free memory was 257.1 MB in the beginning and 255.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 501.52 ms. Allocated memory is still 285.2 MB. Free memory was 255.5 MB in the beginning and 231.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3413.92 ms. Allocated memory was 285.2 MB in the beginning and 342.9 MB in the end (delta: 57.7 MB). Free memory was 231.4 MB in the beginning and 228.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 61.2 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: 17958, positive: 17440, positive conditional: 17440, positive unconditional: 0, negative: 518, negative conditional: 518, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17882, positive: 17440, positive conditional: 0, positive unconditional: 17440, negative: 442, negative conditional: 0, negative unconditional: 442, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 668, positive: 654, positive conditional: 0, positive unconditional: 654, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 668, positive: 650, positive conditional: 0, positive unconditional: 650, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17882, positive: 16786, positive conditional: 0, positive unconditional: 16786, negative: 428, negative conditional: 0, negative unconditional: 428, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 654, Positive conditional cache size: 0, Positive unconditional cache size: 654, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Independence queries for same thread: 76 - 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 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3325.3ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 60.5ms, AutomataDifference: 1219.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 550.0ms, PartialOrderReductionTime: 523.1ms, HoareTripleCheckerStatistics: 604 SDtfs, 755 SDslu, 2121 SDs, 0 SdLazy, 246 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 276.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 902.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 193.7ms AutomataMinimizationTime, 7 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.1ms SsaConstructionTime, 184.3ms SatisfiabilityAnalysisTime, 917.0ms InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 403 ConstructedInterpolants, 0 QuantifiedInterpolants, 1181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...