/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/sigma.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 15:37:28,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 15:37:28,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 15:37:28,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 15:37:28,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 15:37:28,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 15:37:28,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 15:37:28,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 15:37:28,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 15:37:28,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 15:37:28,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 15:37:28,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 15:37:28,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 15:37:28,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 15:37:28,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 15:37:28,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 15:37:28,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 15:37:28,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 15:37:28,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 15:37:28,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 15:37:28,285 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.epf [2021-05-21 15:37:28,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 15:37:28,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 15:37:28,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 15:37:28,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 15:37:28,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 15:37:28,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 15:37:28,313 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 15:37:28,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 15:37:28,313 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 15:37:28,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 15:37:28,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 15:37:28,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 15:37:28,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 15:37:28,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 15:37:28,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 15:37:28,314 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 15:37:28,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 15:37:28,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 15:37:28,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 15:37:28,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 15:37:28,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 15:37:28,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 15:37:28,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 15:37:28,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 15:37:28,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 15:37:28,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 15:37:28,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 15:37:28,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 15:37:28,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 15:37:28,316 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 15:37:28,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 15:37:28,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 15:37:28,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 15:37:28,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 15:37:28,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 15:37:28,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 15:37:28,620 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 15:37:28,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sigma.i [2021-05-21 15:37:28,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fa6d631f/4217390c2889454b94eb6b0a37e9d4dd/FLAG2b965d55d [2021-05-21 15:37:29,203 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 15:37:29,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2021-05-21 15:37:29,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fa6d631f/4217390c2889454b94eb6b0a37e9d4dd/FLAG2b965d55d [2021-05-21 15:37:29,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fa6d631f/4217390c2889454b94eb6b0a37e9d4dd [2021-05-21 15:37:29,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 15:37:29,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 15:37:29,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 15:37:29,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 15:37:29,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 15:37:29,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 03:37:29" (1/1) ... [2021-05-21 15:37:29,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571fbd5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:29, skipping insertion in model container [2021-05-21 15:37:29,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 03:37:29" (1/1) ... [2021-05-21 15:37:29,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 15:37:29,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 15:37:30,100 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/sigma.i[55285,55298] [2021-05-21 15:37:30,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 15:37:30,125 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 15:37:30,159 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/sigma.i[55285,55298] [2021-05-21 15:37:30,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 15:37:30,301 INFO L208 MainTranslator]: Completed translation [2021-05-21 15:37:30,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30 WrapperNode [2021-05-21 15:37:30,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 15:37:30,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 15:37:30,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 15:37:30,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 15:37:30,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (1/1) ... [2021-05-21 15:37:30,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (1/1) ... [2021-05-21 15:37:30,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 15:37:30,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 15:37:30,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 15:37:30,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 15:37:30,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (1/1) ... [2021-05-21 15:37:30,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (1/1) ... [2021-05-21 15:37:30,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (1/1) ... [2021-05-21 15:37:30,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (1/1) ... [2021-05-21 15:37:30,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (1/1) ... [2021-05-21 15:37:30,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (1/1) ... [2021-05-21 15:37:30,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (1/1) ... [2021-05-21 15:37:30,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 15:37:30,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 15:37:30,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 15:37:30,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 15:37:30,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (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 [2021-05-21 15:37:30,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 15:37:30,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-21 15:37:30,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 15:37:30,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-21 15:37:30,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 15:37:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-21 15:37:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-21 15:37:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 15:37:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-05-21 15:37:30,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-05-21 15:37:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 15:37:30,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 15:37:30,460 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 15:37:30,949 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 15:37:30,949 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-05-21 15:37:30,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 03:37:30 BoogieIcfgContainer [2021-05-21 15:37:30,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 15:37:30,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 15:37:30,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 15:37:30,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 15:37:30,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 03:37:29" (1/3) ... [2021-05-21 15:37:30,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a35e5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 03:37:30, skipping insertion in model container [2021-05-21 15:37:30,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 03:37:30" (2/3) ... [2021-05-21 15:37:30,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a35e5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 03:37:30, skipping insertion in model container [2021-05-21 15:37:30,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 03:37:30" (3/3) ... [2021-05-21 15:37:30,961 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2021-05-21 15:37:30,966 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 15:37:30,966 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 15:37:30,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 15:37:30,968 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 15:37:30,997 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,998 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,998 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,998 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,998 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,998 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,998 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,998 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,999 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,999 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,999 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:30,999 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,001 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,002 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,002 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,002 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,012 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-05-21 15:37:31,028 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 15:37:31,047 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 15:37:31,047 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 15:37:31,047 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 15:37:31,048 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 15:37:31,048 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 15:37:31,048 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 15:37:31,048 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 15:37:31,048 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 15:37:31,063 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 92 transitions, 192 flow [2021-05-21 15:37:31,099 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 288 states, 282 states have (on average 1.7304964539007093) internal successors, (488), 287 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 282 states have (on average 1.7304964539007093) internal successors, (488), 287 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:37:31,107 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:31,108 INFO L521 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] [2021-05-21 15:37:31,108 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:31,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:31,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1750532089, now seen corresponding path program 1 times [2021-05-21 15:37:31,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:31,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38468737] [2021-05-21 15:37:31,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:31,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:37:31,319 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:31,319 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38468737] [2021-05-21 15:37:31,319 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38468737] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:31,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:31,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-21 15:37:31,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852919434] [2021-05-21 15:37:31,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-21 15:37:31,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:31,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-21 15:37:31,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:37:31,341 INFO L87 Difference]: Start difference. First operand has 288 states, 282 states have (on average 1.7304964539007093) internal successors, (488), 287 states have internal predecessors, (488), 0 states have call successors, (0), 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 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:31,373 INFO L93 Difference]: Finished difference Result 282 states and 452 transitions. [2021-05-21 15:37:31,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-21 15:37:31,374 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:37:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:31,386 INFO L225 Difference]: With dead ends: 282 [2021-05-21 15:37:31,386 INFO L226 Difference]: Without dead ends: 241 [2021-05-21 15:37:31,387 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:37:31,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-05-21 15:37:31,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-05-21 15:37:31,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 238 states have (on average 1.6260504201680672) internal successors, (387), 240 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 387 transitions. [2021-05-21 15:37:31,436 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 387 transitions. Word has length 41 [2021-05-21 15:37:31,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:31,436 INFO L482 AbstractCegarLoop]: Abstraction has 241 states and 387 transitions. [2021-05-21 15:37:31,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 387 transitions. [2021-05-21 15:37:31,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:37:31,437 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:31,438 INFO L521 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] [2021-05-21 15:37:31,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 15:37:31,438 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:31,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1031341464, now seen corresponding path program 1 times [2021-05-21 15:37:31,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:31,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969746471] [2021-05-21 15:37:31,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:31,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:37:31,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:31,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969746471] [2021-05-21 15:37:31,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969746471] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:31,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:31,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 15:37:31,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815959672] [2021-05-21 15:37:31,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 15:37:31,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:31,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 15:37:31,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:37:31,539 INFO L87 Difference]: Start difference. First operand 241 states and 387 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:31,609 INFO L93 Difference]: Finished difference Result 165 states and 245 transitions. [2021-05-21 15:37:31,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 15:37:31,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:37:31,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:31,612 INFO L225 Difference]: With dead ends: 165 [2021-05-21 15:37:31,612 INFO L226 Difference]: Without dead ends: 165 [2021-05-21 15:37:31,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:37:31,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-05-21 15:37:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-05-21 15:37:31,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 163 states have (on average 1.5030674846625767) internal successors, (245), 164 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 245 transitions. [2021-05-21 15:37:31,619 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 245 transitions. Word has length 41 [2021-05-21 15:37:31,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:31,620 INFO L482 AbstractCegarLoop]: Abstraction has 165 states and 245 transitions. [2021-05-21 15:37:31,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 245 transitions. [2021-05-21 15:37:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 15:37:31,621 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:31,622 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:31,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 15:37:31,622 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:31,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:31,622 INFO L82 PathProgramCache]: Analyzing trace with hash -2107954742, now seen corresponding path program 1 times [2021-05-21 15:37:31,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:31,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676462897] [2021-05-21 15:37:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:37:31,668 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:37:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:37:31,721 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:37:31,756 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 15:37:31,756 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 15:37:31,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 15:37:31,757 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-05-21 15:37:31,758 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-05-21 15:37:31,777 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,777 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,777 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,778 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,778 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,778 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,778 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,778 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,779 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,779 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,779 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,779 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,779 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,779 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,779 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,779 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,779 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,780 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,780 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,780 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,780 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,780 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,780 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,780 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,781 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,781 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,781 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,781 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,783 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,783 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,783 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,783 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:31,787 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-21 15:37:31,788 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 15:37:31,791 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 15:37:31,791 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 15:37:31,791 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 15:37:31,791 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 15:37:31,791 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 15:37:31,792 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 15:37:31,792 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 15:37:31,792 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 15:37:31,796 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 98 transitions, 214 flow [2021-05-21 15:37:31,835 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1538 states, 1528 states have (on average 2.4404450261780104) internal successors, (3729), 1537 states have internal predecessors, (3729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 1538 states, 1528 states have (on average 2.4404450261780104) internal successors, (3729), 1537 states have internal predecessors, (3729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:37:31,842 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:31,842 INFO L521 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] [2021-05-21 15:37:31,842 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:31,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:31,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1058894999, now seen corresponding path program 1 times [2021-05-21 15:37:31,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:31,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959651011] [2021-05-21 15:37:31,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:37:31,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:31,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959651011] [2021-05-21 15:37:31,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959651011] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:31,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:31,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-21 15:37:31,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149749667] [2021-05-21 15:37:31,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-21 15:37:31,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:31,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-21 15:37:31,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:37:31,906 INFO L87 Difference]: Start difference. First operand has 1538 states, 1528 states have (on average 2.4404450261780104) internal successors, (3729), 1537 states have internal predecessors, (3729), 0 states have call successors, (0), 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 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:31,922 INFO L93 Difference]: Finished difference Result 1502 states and 3504 transitions. [2021-05-21 15:37:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-21 15:37:31,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:37:31,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:31,932 INFO L225 Difference]: With dead ends: 1502 [2021-05-21 15:37:31,932 INFO L226 Difference]: Without dead ends: 1281 [2021-05-21 15:37:31,933 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:37:31,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2021-05-21 15:37:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1281. [2021-05-21 15:37:31,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1276 states have (on average 2.34717868338558) internal successors, (2995), 1280 states have internal predecessors, (2995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2995 transitions. [2021-05-21 15:37:31,989 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2995 transitions. Word has length 41 [2021-05-21 15:37:31,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:31,990 INFO L482 AbstractCegarLoop]: Abstraction has 1281 states and 2995 transitions. [2021-05-21 15:37:31,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:31,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2995 transitions. [2021-05-21 15:37:31,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:37:31,993 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:31,993 INFO L521 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] [2021-05-21 15:37:31,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 15:37:31,994 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:31,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:31,994 INFO L82 PathProgramCache]: Analyzing trace with hash -339704374, now seen corresponding path program 1 times [2021-05-21 15:37:31,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:31,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363068448] [2021-05-21 15:37:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:37:32,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:32,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363068448] [2021-05-21 15:37:32,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363068448] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:32,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:32,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 15:37:32,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102820018] [2021-05-21 15:37:32,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 15:37:32,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:32,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 15:37:32,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:37:32,076 INFO L87 Difference]: Start difference. First operand 1281 states and 2995 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:32,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:32,130 INFO L93 Difference]: Finished difference Result 929 states and 2029 transitions. [2021-05-21 15:37:32,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 15:37:32,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:37:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:32,135 INFO L225 Difference]: With dead ends: 929 [2021-05-21 15:37:32,136 INFO L226 Difference]: Without dead ends: 929 [2021-05-21 15:37:32,136 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:37:32,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2021-05-21 15:37:32,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 910. [2021-05-21 15:37:32,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 906 states have (on average 2.2097130242825607) internal successors, (2002), 909 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:32,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 2002 transitions. [2021-05-21 15:37:32,157 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 2002 transitions. Word has length 41 [2021-05-21 15:37:32,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:32,159 INFO L482 AbstractCegarLoop]: Abstraction has 910 states and 2002 transitions. [2021-05-21 15:37:32,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:32,159 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 2002 transitions. [2021-05-21 15:37:32,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-05-21 15:37:32,162 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:32,163 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:32,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 15:37:32,163 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:32,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:32,163 INFO L82 PathProgramCache]: Analyzing trace with hash 367933672, now seen corresponding path program 1 times [2021-05-21 15:37:32,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:32,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44236602] [2021-05-21 15:37:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:32,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:37:32,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:32,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44236602] [2021-05-21 15:37:32,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44236602] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:32,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:32,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-21 15:37:32,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235260008] [2021-05-21 15:37:32,302 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-21 15:37:32,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:32,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-21 15:37:32,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 15:37:32,303 INFO L87 Difference]: Start difference. First operand 910 states and 2002 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:32,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:32,373 INFO L93 Difference]: Finished difference Result 995 states and 2143 transitions. [2021-05-21 15:37:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-21 15:37:32,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-05-21 15:37:32,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:32,379 INFO L225 Difference]: With dead ends: 995 [2021-05-21 15:37:32,379 INFO L226 Difference]: Without dead ends: 995 [2021-05-21 15:37:32,379 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-05-21 15:37:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2021-05-21 15:37:32,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 921. [2021-05-21 15:37:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 917 states have (on average 2.2039258451472192) internal successors, (2021), 920 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:32,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 2021 transitions. [2021-05-21 15:37:32,401 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 2021 transitions. Word has length 69 [2021-05-21 15:37:32,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:32,402 INFO L482 AbstractCegarLoop]: Abstraction has 921 states and 2021 transitions. [2021-05-21 15:37:32,403 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 2021 transitions. [2021-05-21 15:37:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-05-21 15:37:32,404 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:32,404 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:32,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 15:37:32,405 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:32,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:32,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1437284449, now seen corresponding path program 1 times [2021-05-21 15:37:32,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:32,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153017055] [2021-05-21 15:37:32,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:37:32,436 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:37:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:37:32,465 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:37:32,484 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 15:37:32,484 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 15:37:32,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 15:37:32,485 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-05-21 15:37:32,485 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-05-21 15:37:32,497 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,497 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,497 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,497 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,497 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,497 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,497 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,497 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,498 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,498 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,498 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,499 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,500 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,500 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,500 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,500 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,500 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,500 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,500 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,500 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,500 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,501 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,501 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,501 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,501 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,503 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,503 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,503 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,503 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,506 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,506 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,509 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,509 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:32,514 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-05-21 15:37:32,514 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 15:37:32,515 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 15:37:32,515 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 15:37:32,515 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 15:37:32,515 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 15:37:32,515 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 15:37:32,515 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 15:37:32,515 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 15:37:32,516 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 15:37:32,520 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 104 transitions, 238 flow [2021-05-21 15:37:32,843 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8718 states, 8700 states have (on average 3.1447126436781607) internal successors, (27359), 8717 states have internal predecessors, (27359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:32,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 8718 states, 8700 states have (on average 3.1447126436781607) internal successors, (27359), 8717 states have internal predecessors, (27359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:32,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:37:32,865 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:32,865 INFO L521 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] [2021-05-21 15:37:32,865 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:32,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:32,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1201436719, now seen corresponding path program 1 times [2021-05-21 15:37:32,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:32,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233093772] [2021-05-21 15:37:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:37:32,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:32,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233093772] [2021-05-21 15:37:32,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233093772] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:32,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:32,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-21 15:37:32,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919528919] [2021-05-21 15:37:32,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-21 15:37:32,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:32,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-21 15:37:32,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:37:32,924 INFO L87 Difference]: Start difference. First operand has 8718 states, 8700 states have (on average 3.1447126436781607) internal successors, (27359), 8717 states have internal predecessors, (27359), 0 states have call successors, (0), 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 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:32,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:32,995 INFO L93 Difference]: Finished difference Result 8502 states and 25905 transitions. [2021-05-21 15:37:32,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-21 15:37:32,995 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:37:32,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:33,040 INFO L225 Difference]: With dead ends: 8502 [2021-05-21 15:37:33,041 INFO L226 Difference]: Without dead ends: 7201 [2021-05-21 15:37:33,041 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:37:33,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7201 states. [2021-05-21 15:37:33,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7201 to 7201. [2021-05-21 15:37:33,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7201 states, 7192 states have (on average 3.060622914349277) internal successors, (22012), 7200 states have internal predecessors, (22012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:33,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7201 states to 7201 states and 22012 transitions. [2021-05-21 15:37:33,352 INFO L78 Accepts]: Start accepts. Automaton has 7201 states and 22012 transitions. Word has length 41 [2021-05-21 15:37:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:33,353 INFO L482 AbstractCegarLoop]: Abstraction has 7201 states and 22012 transitions. [2021-05-21 15:37:33,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7201 states and 22012 transitions. [2021-05-21 15:37:33,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:37:33,353 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:33,353 INFO L521 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] [2021-05-21 15:37:33,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 15:37:33,354 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:33,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:33,354 INFO L82 PathProgramCache]: Analyzing trace with hash -482246094, now seen corresponding path program 1 times [2021-05-21 15:37:33,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:33,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494205242] [2021-05-21 15:37:33,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:33,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:37:33,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:33,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494205242] [2021-05-21 15:37:33,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494205242] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:33,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:33,427 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 15:37:33,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856600609] [2021-05-21 15:37:33,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 15:37:33,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:33,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 15:37:33,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:37:33,429 INFO L87 Difference]: Start difference. First operand 7201 states and 22012 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:33,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:33,494 INFO L93 Difference]: Finished difference Result 5489 states and 15863 transitions. [2021-05-21 15:37:33,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 15:37:33,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:37:33,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:33,522 INFO L225 Difference]: With dead ends: 5489 [2021-05-21 15:37:33,522 INFO L226 Difference]: Without dead ends: 5489 [2021-05-21 15:37:33,523 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:37:33,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2021-05-21 15:37:33,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 5355. [2021-05-21 15:37:33,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5355 states, 5347 states have (on average 2.9145315129979426) internal successors, (15584), 5354 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5355 states to 5355 states and 15584 transitions. [2021-05-21 15:37:33,786 INFO L78 Accepts]: Start accepts. Automaton has 5355 states and 15584 transitions. Word has length 41 [2021-05-21 15:37:33,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:33,786 INFO L482 AbstractCegarLoop]: Abstraction has 5355 states and 15584 transitions. [2021-05-21 15:37:33,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5355 states and 15584 transitions. [2021-05-21 15:37:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-05-21 15:37:33,788 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:33,788 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:33,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 15:37:33,788 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:33,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:33,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1599598941, now seen corresponding path program 1 times [2021-05-21 15:37:33,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:33,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400217703] [2021-05-21 15:37:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:37:33,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:33,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400217703] [2021-05-21 15:37:33,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400217703] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:33,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:33,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-21 15:37:33,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499248709] [2021-05-21 15:37:33,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-21 15:37:33,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:33,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-21 15:37:33,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 15:37:33,841 INFO L87 Difference]: Start difference. First operand 5355 states and 15584 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:33,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:33,963 INFO L93 Difference]: Finished difference Result 6035 states and 17201 transitions. [2021-05-21 15:37:33,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-21 15:37:33,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-05-21 15:37:33,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:33,994 INFO L225 Difference]: With dead ends: 6035 [2021-05-21 15:37:33,995 INFO L226 Difference]: Without dead ends: 6035 [2021-05-21 15:37:33,995 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.9ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-05-21 15:37:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6035 states. [2021-05-21 15:37:34,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6035 to 5446. [2021-05-21 15:37:34,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 5438 states have (on average 2.906767193821258) internal successors, (15807), 5445 states have internal predecessors, (15807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 15807 transitions. [2021-05-21 15:37:34,176 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 15807 transitions. Word has length 69 [2021-05-21 15:37:34,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:34,177 INFO L482 AbstractCegarLoop]: Abstraction has 5446 states and 15807 transitions. [2021-05-21 15:37:34,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 15807 transitions. [2021-05-21 15:37:34,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-05-21 15:37:34,180 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:34,180 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:34,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-21 15:37:34,180 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:34,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:34,181 INFO L82 PathProgramCache]: Analyzing trace with hash 2100395439, now seen corresponding path program 1 times [2021-05-21 15:37:34,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:34,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467178874] [2021-05-21 15:37:34,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:37:34,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:34,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467178874] [2021-05-21 15:37:34,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467178874] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:37:34,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541559473] [2021-05-21 15:37:34,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-21 15:37:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:34,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-21 15:37:34,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-21 15:37:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:37:34,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541559473] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:37:34,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-21 15:37:34,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-05-21 15:37:34,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720966524] [2021-05-21 15:37:34,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-21 15:37:34,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:34,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-21 15:37:34,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-05-21 15:37:34,609 INFO L87 Difference]: Start difference. First operand 5446 states and 15807 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:34,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:34,773 INFO L93 Difference]: Finished difference Result 5551 states and 16036 transitions. [2021-05-21 15:37:34,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 15:37:34,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 76 [2021-05-21 15:37:34,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:34,788 INFO L225 Difference]: With dead ends: 5551 [2021-05-21 15:37:34,789 INFO L226 Difference]: Without dead ends: 5551 [2021-05-21 15:37:34,789 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 69.7ms TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-05-21 15:37:34,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5551 states. [2021-05-21 15:37:34,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5551 to 5436. [2021-05-21 15:37:34,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5428 states have (on average 2.9078850405305823) internal successors, (15784), 5435 states have internal predecessors, (15784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 15784 transitions. [2021-05-21 15:37:34,984 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 15784 transitions. Word has length 76 [2021-05-21 15:37:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:34,984 INFO L482 AbstractCegarLoop]: Abstraction has 5436 states and 15784 transitions. [2021-05-21 15:37:34,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 15784 transitions. [2021-05-21 15:37:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-05-21 15:37:34,991 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:34,991 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:35,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-05-21 15:37:35,205 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:35,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:35,205 INFO L82 PathProgramCache]: Analyzing trace with hash 2017283657, now seen corresponding path program 1 times [2021-05-21 15:37:35,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:35,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790243185] [2021-05-21 15:37:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:37:35,240 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:37:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:37:35,267 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:37:35,286 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 15:37:35,286 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 15:37:35,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-21 15:37:35,286 WARN L242 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-05-21 15:37:35,286 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-05-21 15:37:35,297 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,297 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,297 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,297 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,297 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,297 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,297 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,297 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,298 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,299 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,299 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,299 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,299 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,299 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,299 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,299 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,299 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,300 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,301 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,301 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,301 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,301 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,301 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,301 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,301 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,301 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,301 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,302 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,302 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,302 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,302 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,303 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,303 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,303 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,304 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,305 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,305 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,305 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,305 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,306 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,306 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,306 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,306 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:35,311 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-21 15:37:35,313 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 15:37:35,313 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 15:37:35,313 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 15:37:35,313 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 15:37:35,313 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 15:37:35,314 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 15:37:35,314 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 15:37:35,314 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 15:37:35,314 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 15:37:35,316 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 110 transitions, 264 flow [2021-05-21 15:37:39,131 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50198 states, 50164 states have (on average 3.8379913882465515) internal successors, (192529), 50197 states have internal predecessors, (192529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:39,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 50198 states, 50164 states have (on average 3.8379913882465515) internal successors, (192529), 50197 states have internal predecessors, (192529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:39,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:37:39,205 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:39,205 INFO L521 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] [2021-05-21 15:37:39,206 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:39,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:39,206 INFO L82 PathProgramCache]: Analyzing trace with hash 319858688, now seen corresponding path program 1 times [2021-05-21 15:37:39,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:39,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650615265] [2021-05-21 15:37:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:37:39,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:39,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650615265] [2021-05-21 15:37:39,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650615265] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:39,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:39,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-21 15:37:39,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258615679] [2021-05-21 15:37:39,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-21 15:37:39,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:39,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-21 15:37:39,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:37:39,303 INFO L87 Difference]: Start difference. First operand has 50198 states, 50164 states have (on average 3.8379913882465515) internal successors, (192529), 50197 states have internal predecessors, (192529), 0 states have call successors, (0), 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 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:39,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:39,960 INFO L93 Difference]: Finished difference Result 48902 states and 183106 transitions. [2021-05-21 15:37:39,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-21 15:37:39,961 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:37:39,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:40,144 INFO L225 Difference]: With dead ends: 48902 [2021-05-21 15:37:40,144 INFO L226 Difference]: Without dead ends: 41121 [2021-05-21 15:37:40,145 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:37:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41121 states. [2021-05-21 15:37:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41121 to 41121. [2021-05-21 15:37:41,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41121 states, 41104 states have (on average 3.760923511093811) internal successors, (154589), 41120 states have internal predecessors, (154589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41121 states to 41121 states and 154589 transitions. [2021-05-21 15:37:41,662 INFO L78 Accepts]: Start accepts. Automaton has 41121 states and 154589 transitions. Word has length 41 [2021-05-21 15:37:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:41,662 INFO L482 AbstractCegarLoop]: Abstraction has 41121 states and 154589 transitions. [2021-05-21 15:37:41,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 41121 states and 154589 transitions. [2021-05-21 15:37:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:37:41,663 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:41,663 INFO L521 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] [2021-05-21 15:37:41,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-21 15:37:41,663 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:41,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1458966624, now seen corresponding path program 1 times [2021-05-21 15:37:41,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:41,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321133822] [2021-05-21 15:37:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:37:41,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:41,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321133822] [2021-05-21 15:37:41,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321133822] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:41,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:41,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 15:37:41,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242314054] [2021-05-21 15:37:41,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 15:37:41,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:41,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 15:37:41,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:37:41,692 INFO L87 Difference]: Start difference. First operand 41121 states and 154589 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:42,147 INFO L93 Difference]: Finished difference Result 32709 states and 117370 transitions. [2021-05-21 15:37:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 15:37:42,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:37:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:42,342 INFO L225 Difference]: With dead ends: 32709 [2021-05-21 15:37:42,343 INFO L226 Difference]: Without dead ends: 32709 [2021-05-21 15:37:42,344 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:37:42,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32709 states. [2021-05-21 15:37:43,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32709 to 31900. [2021-05-21 15:37:43,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31900 states, 31884 states have (on average 3.609522017312759) internal successors, (115086), 31899 states have internal predecessors, (115086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:43,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31900 states to 31900 states and 115086 transitions. [2021-05-21 15:37:43,153 INFO L78 Accepts]: Start accepts. Automaton has 31900 states and 115086 transitions. Word has length 41 [2021-05-21 15:37:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:43,153 INFO L482 AbstractCegarLoop]: Abstraction has 31900 states and 115086 transitions. [2021-05-21 15:37:43,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 31900 states and 115086 transitions. [2021-05-21 15:37:43,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-05-21 15:37:43,155 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:43,155 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:43,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-21 15:37:43,155 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:43,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:43,155 INFO L82 PathProgramCache]: Analyzing trace with hash -632966192, now seen corresponding path program 1 times [2021-05-21 15:37:43,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:43,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382404513] [2021-05-21 15:37:43,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:43,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:37:43,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:43,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382404513] [2021-05-21 15:37:43,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382404513] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:37:43,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:37:43,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-21 15:37:43,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719795915] [2021-05-21 15:37:43,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-21 15:37:43,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:43,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-21 15:37:43,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 15:37:43,203 INFO L87 Difference]: Start difference. First operand 31900 states and 115086 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:43,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:43,650 INFO L93 Difference]: Finished difference Result 36735 states and 130132 transitions. [2021-05-21 15:37:43,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-21 15:37:43,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-05-21 15:37:43,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:43,755 INFO L225 Difference]: With dead ends: 36735 [2021-05-21 15:37:43,755 INFO L226 Difference]: Without dead ends: 36735 [2021-05-21 15:37:43,755 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-05-21 15:37:43,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36735 states. [2021-05-21 15:37:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36735 to 32571. [2021-05-21 15:37:44,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32571 states, 32555 states have (on average 3.600460758716019) internal successors, (117213), 32570 states have internal predecessors, (117213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32571 states to 32571 states and 117213 transitions. [2021-05-21 15:37:44,744 INFO L78 Accepts]: Start accepts. Automaton has 32571 states and 117213 transitions. Word has length 69 [2021-05-21 15:37:44,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:44,744 INFO L482 AbstractCegarLoop]: Abstraction has 32571 states and 117213 transitions. [2021-05-21 15:37:44,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:44,744 INFO L276 IsEmpty]: Start isEmpty. Operand 32571 states and 117213 transitions. [2021-05-21 15:37:44,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-05-21 15:37:44,746 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:44,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:44,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-21 15:37:44,747 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:44,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:44,747 INFO L82 PathProgramCache]: Analyzing trace with hash 414249738, now seen corresponding path program 1 times [2021-05-21 15:37:44,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:44,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529081777] [2021-05-21 15:37:44,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:37:44,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:44,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529081777] [2021-05-21 15:37:44,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529081777] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:37:44,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071927524] [2021-05-21 15:37:44,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-21 15:37:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:44,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-21 15:37:44,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-21 15:37:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:37:45,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071927524] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:37:45,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-21 15:37:45,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-05-21 15:37:45,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844678054] [2021-05-21 15:37:45,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-21 15:37:45,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:45,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-21 15:37:45,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-05-21 15:37:45,183 INFO L87 Difference]: Start difference. First operand 32571 states and 117213 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:45,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:45,685 INFO L93 Difference]: Finished difference Result 33351 states and 119447 transitions. [2021-05-21 15:37:45,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 15:37:45,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 76 [2021-05-21 15:37:45,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:45,763 INFO L225 Difference]: With dead ends: 33351 [2021-05-21 15:37:45,763 INFO L226 Difference]: Without dead ends: 33351 [2021-05-21 15:37:45,763 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 59.1ms TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-05-21 15:37:45,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33351 states. [2021-05-21 15:37:46,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33351 to 32561. [2021-05-21 15:37:46,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32561 states, 32545 states have (on average 3.6008603472115532) internal successors, (117190), 32560 states have internal predecessors, (117190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:46,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32561 states to 32561 states and 117190 transitions. [2021-05-21 15:37:46,595 INFO L78 Accepts]: Start accepts. Automaton has 32561 states and 117190 transitions. Word has length 76 [2021-05-21 15:37:46,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:46,595 INFO L482 AbstractCegarLoop]: Abstraction has 32561 states and 117190 transitions. [2021-05-21 15:37:46,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 32561 states and 117190 transitions. [2021-05-21 15:37:46,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-05-21 15:37:46,604 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:46,604 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:46,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-05-21 15:37:46,817 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:46,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:46,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1303723719, now seen corresponding path program 1 times [2021-05-21 15:37:46,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:46,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747183343] [2021-05-21 15:37:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-05-21 15:37:46,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:37:46,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747183343] [2021-05-21 15:37:46,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747183343] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:37:46,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593352802] [2021-05-21 15:37:46,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-21 15:37:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:37:47,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-21 15:37:47,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-21 15:37:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:37:47,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593352802] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:37:47,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-21 15:37:47,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-05-21 15:37:47,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4576264] [2021-05-21 15:37:47,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 15:37:47,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:37:47,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 15:37:47,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-05-21 15:37:47,239 INFO L87 Difference]: Start difference. First operand 32561 states and 117190 transitions. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:37:47,769 INFO L93 Difference]: Finished difference Result 25621 states and 92378 transitions. [2021-05-21 15:37:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-21 15:37:47,770 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-05-21 15:37:47,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:37:47,839 INFO L225 Difference]: With dead ends: 25621 [2021-05-21 15:37:47,839 INFO L226 Difference]: Without dead ends: 25621 [2021-05-21 15:37:47,840 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 116.0ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-05-21 15:37:47,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25621 states. [2021-05-21 15:37:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25621 to 25336. [2021-05-21 15:37:48,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25336 states, 25324 states have (on average 3.6222555678407833) internal successors, (91730), 25335 states have internal predecessors, (91730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:48,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25336 states to 25336 states and 91730 transitions. [2021-05-21 15:37:48,416 INFO L78 Accepts]: Start accepts. Automaton has 25336 states and 91730 transitions. Word has length 91 [2021-05-21 15:37:48,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:37:48,416 INFO L482 AbstractCegarLoop]: Abstraction has 25336 states and 91730 transitions. [2021-05-21 15:37:48,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:37:48,417 INFO L276 IsEmpty]: Start isEmpty. Operand 25336 states and 91730 transitions. [2021-05-21 15:37:48,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-05-21 15:37:48,442 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:37:48,442 INFO L521 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:37:48,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-05-21 15:37:48,665 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:37:48,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:37:48,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1407006812, now seen corresponding path program 1 times [2021-05-21 15:37:48,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:37:48,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811181069] [2021-05-21 15:37:48,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:37:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:37:48,686 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:37:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:37:48,706 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:37:48,723 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 15:37:48,724 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 15:37:48,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-21 15:37:48,724 WARN L242 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-05-21 15:37:48,724 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-05-21 15:37:48,738 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,738 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,738 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,738 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,738 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,738 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,738 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,738 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,739 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,740 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,741 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,742 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,743 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,743 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,743 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,743 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,743 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,743 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,743 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,743 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,743 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,744 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,744 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,744 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,745 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,745 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,745 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,745 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,746 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,747 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,747 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,747 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,748 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,748 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,748 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,748 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,749 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,749 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,749 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,749 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:37:48,755 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-05-21 15:37:48,756 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 15:37:48,759 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 15:37:48,759 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 15:37:48,760 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 15:37:48,760 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 15:37:48,760 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 15:37:48,760 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 15:37:48,760 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 15:37:48,760 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 15:37:48,761 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 116 transitions, 292 flow [2021-05-21 15:40:03,450 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 291078 states, 291012 states have (on average 4.524208623699367) internal successors, (1316599), 291077 states have internal predecessors, (1316599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:03,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 291078 states, 291012 states have (on average 4.524208623699367) internal successors, (1316599), 291077 states have internal predecessors, (1316599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:40:03,793 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:40:03,793 INFO L521 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] [2021-05-21 15:40:03,793 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:40:03,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:40:03,794 INFO L82 PathProgramCache]: Analyzing trace with hash 305910707, now seen corresponding path program 1 times [2021-05-21 15:40:03,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:40:03,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688026458] [2021-05-21 15:40:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:40:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:40:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:40:03,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:40:03,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688026458] [2021-05-21 15:40:03,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688026458] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:40:03,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:40:03,808 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-21 15:40:03,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902551928] [2021-05-21 15:40:03,808 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-21 15:40:03,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:40:03,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-21 15:40:03,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:40:04,142 INFO L87 Difference]: Start difference. First operand has 291078 states, 291012 states have (on average 4.524208623699367) internal successors, (1316599), 291077 states have internal predecessors, (1316599), 0 states have call successors, (0), 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 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:07,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:40:07,145 INFO L93 Difference]: Finished difference Result 283302 states and 1255667 transitions. [2021-05-21 15:40:07,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-21 15:40:07,145 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:40:07,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:40:08,860 INFO L225 Difference]: With dead ends: 283302 [2021-05-21 15:40:08,860 INFO L226 Difference]: Without dead ends: 236641 [2021-05-21 15:40:08,860 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 15:40:12,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236641 states. [2021-05-21 15:40:17,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236641 to 236641. [2021-05-21 15:40:18,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236641 states, 236608 states have (on average 4.452453002434407) internal successors, (1053486), 236640 states have internal predecessors, (1053486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:19,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236641 states to 236641 states and 1053486 transitions. [2021-05-21 15:40:19,703 INFO L78 Accepts]: Start accepts. Automaton has 236641 states and 1053486 transitions. Word has length 41 [2021-05-21 15:40:19,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:40:19,703 INFO L482 AbstractCegarLoop]: Abstraction has 236641 states and 1053486 transitions. [2021-05-21 15:40:19,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:19,704 INFO L276 IsEmpty]: Start isEmpty. Operand 236641 states and 1053486 transitions. [2021-05-21 15:40:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 15:40:19,704 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:40:19,704 INFO L521 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] [2021-05-21 15:40:19,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-21 15:40:19,704 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:40:19,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:40:19,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1025101332, now seen corresponding path program 1 times [2021-05-21 15:40:19,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:40:19,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331971916] [2021-05-21 15:40:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:40:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:40:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 15:40:19,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:40:19,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331971916] [2021-05-21 15:40:19,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331971916] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:40:19,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:40:19,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 15:40:19,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523675612] [2021-05-21 15:40:19,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 15:40:19,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:40:19,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 15:40:19,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:40:19,733 INFO L87 Difference]: Start difference. First operand 236641 states and 1053486 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:22,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:40:22,200 INFO L93 Difference]: Finished difference Result 195229 states and 835942 transitions. [2021-05-21 15:40:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 15:40:22,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-05-21 15:40:22,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:40:23,021 INFO L225 Difference]: With dead ends: 195229 [2021-05-21 15:40:23,021 INFO L226 Difference]: Without dead ends: 195229 [2021-05-21 15:40:23,021 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 15:40:25,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195229 states. [2021-05-21 15:40:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195229 to 190545. [2021-05-21 15:40:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190545 states, 190513 states have (on average 4.299486124306478) internal successors, (819108), 190544 states have internal predecessors, (819108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:31,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190545 states to 190545 states and 819108 transitions. [2021-05-21 15:40:31,424 INFO L78 Accepts]: Start accepts. Automaton has 190545 states and 819108 transitions. Word has length 41 [2021-05-21 15:40:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:40:31,424 INFO L482 AbstractCegarLoop]: Abstraction has 190545 states and 819108 transitions. [2021-05-21 15:40:31,424 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 190545 states and 819108 transitions. [2021-05-21 15:40:31,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-05-21 15:40:31,425 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:40:31,425 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:40:31,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-21 15:40:31,425 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:40:31,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:40:31,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1483455501, now seen corresponding path program 1 times [2021-05-21 15:40:31,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:40:31,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633222684] [2021-05-21 15:40:31,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:40:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:40:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:40:31,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:40:31,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633222684] [2021-05-21 15:40:31,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633222684] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 15:40:31,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 15:40:31,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-21 15:40:31,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257909620] [2021-05-21 15:40:31,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-21 15:40:31,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:40:31,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-21 15:40:31,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 15:40:31,484 INFO L87 Difference]: Start difference. First operand 190545 states and 819108 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:33,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:40:33,650 INFO L93 Difference]: Finished difference Result 223135 states and 944368 transitions. [2021-05-21 15:40:33,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-21 15:40:33,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-05-21 15:40:33,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:40:35,325 INFO L225 Difference]: With dead ends: 223135 [2021-05-21 15:40:35,327 INFO L226 Difference]: Without dead ends: 223135 [2021-05-21 15:40:35,328 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.4ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-05-21 15:40:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223135 states. [2021-05-21 15:40:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223135 to 195196. [2021-05-21 15:40:43,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195196 states, 195164 states have (on average 4.289617962329118) internal successors, (837179), 195195 states have internal predecessors, (837179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195196 states to 195196 states and 837179 transitions. [2021-05-21 15:40:45,399 INFO L78 Accepts]: Start accepts. Automaton has 195196 states and 837179 transitions. Word has length 69 [2021-05-21 15:40:45,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:40:45,400 INFO L482 AbstractCegarLoop]: Abstraction has 195196 states and 837179 transitions. [2021-05-21 15:40:45,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:45,400 INFO L276 IsEmpty]: Start isEmpty. Operand 195196 states and 837179 transitions. [2021-05-21 15:40:45,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-05-21 15:40:45,402 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:40:45,402 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:40:45,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-21 15:40:45,403 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:40:45,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:40:45,403 INFO L82 PathProgramCache]: Analyzing trace with hash 314032417, now seen corresponding path program 1 times [2021-05-21 15:40:45,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:40:45,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511310252] [2021-05-21 15:40:45,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:40:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:40:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:40:45,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:40:45,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511310252] [2021-05-21 15:40:45,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511310252] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:40:45,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578670098] [2021-05-21 15:40:45,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-21 15:40:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:40:45,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-21 15:40:45,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-21 15:40:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:40:45,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578670098] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:40:45,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-21 15:40:45,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-05-21 15:40:45,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998474919] [2021-05-21 15:40:45,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-21 15:40:45,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:40:45,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-21 15:40:45,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-05-21 15:40:45,861 INFO L87 Difference]: Start difference. First operand 195196 states and 837179 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:48,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:40:48,397 INFO L93 Difference]: Finished difference Result 199851 states and 853963 transitions. [2021-05-21 15:40:48,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 15:40:48,397 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-05-21 15:40:48,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:40:50,336 INFO L225 Difference]: With dead ends: 199851 [2021-05-21 15:40:50,336 INFO L226 Difference]: Without dead ends: 199851 [2021-05-21 15:40:50,337 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 85.3ms TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-05-21 15:40:52,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199851 states. [2021-05-21 15:40:56,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199851 to 195186. [2021-05-21 15:40:57,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195186 states, 195154 states have (on average 4.289719913504207) internal successors, (837156), 195185 states have internal predecessors, (837156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195186 states to 195186 states and 837156 transitions. [2021-05-21 15:40:57,891 INFO L78 Accepts]: Start accepts. Automaton has 195186 states and 837156 transitions. Word has length 76 [2021-05-21 15:40:57,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:40:57,891 INFO L482 AbstractCegarLoop]: Abstraction has 195186 states and 837156 transitions. [2021-05-21 15:40:57,891 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:40:57,891 INFO L276 IsEmpty]: Start isEmpty. Operand 195186 states and 837156 transitions. [2021-05-21 15:40:57,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-05-21 15:40:57,898 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:40:57,898 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:40:58,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-21 15:40:58,101 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:40:58,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:40:58,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1202886806, now seen corresponding path program 1 times [2021-05-21 15:40:58,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:40:58,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315223176] [2021-05-21 15:40:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:40:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:40:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-05-21 15:40:58,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 15:40:58,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315223176] [2021-05-21 15:40:58,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315223176] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:40:58,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621034586] [2021-05-21 15:40:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-21 15:40:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 15:40:59,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-21 15:40:59,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-21 15:40:59,277 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-21 15:40:59,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621034586] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-21 15:40:59,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-21 15:40:59,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-05-21 15:40:59,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783645808] [2021-05-21 15:40:59,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 15:40:59,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 15:40:59,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 15:40:59,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-05-21 15:40:59,280 INFO L87 Difference]: Start difference. First operand 195186 states and 837156 transitions. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:41:00,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 15:41:00,788 INFO L93 Difference]: Finished difference Result 153221 states and 651329 transitions. [2021-05-21 15:41:00,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-21 15:41:00,789 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-05-21 15:41:00,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 15:41:01,372 INFO L225 Difference]: With dead ends: 153221 [2021-05-21 15:41:01,372 INFO L226 Difference]: Without dead ends: 153221 [2021-05-21 15:41:01,372 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 124.2ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-05-21 15:41:03,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153221 states. [2021-05-21 15:41:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153221 to 150836. [2021-05-21 15:41:06,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150836 states, 150809 states have (on average 4.2717676000769185) internal successors, (644221), 150835 states have internal predecessors, (644221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:41:07,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150836 states to 150836 states and 644221 transitions. [2021-05-21 15:41:07,455 INFO L78 Accepts]: Start accepts. Automaton has 150836 states and 644221 transitions. Word has length 91 [2021-05-21 15:41:07,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 15:41:07,456 INFO L482 AbstractCegarLoop]: Abstraction has 150836 states and 644221 transitions. [2021-05-21 15:41:07,456 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 11 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 15:41:07,456 INFO L276 IsEmpty]: Start isEmpty. Operand 150836 states and 644221 transitions. [2021-05-21 15:41:07,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 15:41:07,584 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 15:41:07,584 INFO L521 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 15:41:07,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-05-21 15:41:07,784 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 15:41:07,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 15:41:07,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1679649464, now seen corresponding path program 1 times [2021-05-21 15:41:07,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 15:41:07,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754249828] [2021-05-21 15:41:07,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 15:41:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:41:07,803 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:41:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 15:41:07,836 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 15:41:07,852 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 15:41:07,853 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 15:41:07,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-21 15:41:07,853 WARN L242 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-05-21 15:41:07,853 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-05-21 15:41:07,863 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,863 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,863 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,863 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,864 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,865 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,865 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,865 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,866 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,867 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,868 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,869 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,870 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,871 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,871 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,871 WARN L313 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,871 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,872 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,872 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,872 WARN L313 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,872 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,873 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,873 WARN L313 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,873 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,873 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,874 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,875 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,875 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,875 WARN L313 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,876 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,876 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,876 WARN L313 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,876 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 15:41:07,882 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-05-21 15:41:07,883 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 15:41:07,883 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 15:41:07,883 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 15:41:07,883 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 15:41:07,883 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 15:41:07,883 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 15:41:07,883 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 15:41:07,883 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 15:41:07,884 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 15:41:07,884 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 122 transitions, 322 flow Received shutdown request... [2021-05-21 15:51:12,663 WARN L547 AbstractCegarLoop]: Verification canceled [2021-05-21 15:51:12,665 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 6 thread instances [2021-05-21 15:51:12,668 WARN L196 ceAbstractionStarter]: Timeout [2021-05-21 15:51:12,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 03:51:12 BasicIcfg [2021-05-21 15:51:12,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 15:51:12,669 INFO L168 Benchmark]: Toolchain (without parser) took 822997.59 ms. Allocated memory was 373.3 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 334.7 MB in the beginning and 13.6 GB in the end (delta: -13.3 GB). Peak memory consumption was 9.2 GB. Max. memory is 16.0 GB. [2021-05-21 15:51:12,669 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 373.3 MB. Free memory was 354.0 MB in the beginning and 353.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 15:51:12,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.16 ms. Allocated memory is still 373.3 MB. Free memory was 334.5 MB in the beginning and 296.2 MB in the end (delta: 38.3 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.0 GB. [2021-05-21 15:51:12,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.08 ms. Allocated memory is still 373.3 MB. Free memory was 296.2 MB in the beginning and 294.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 15:51:12,670 INFO L168 Benchmark]: Boogie Preprocessor took 21.15 ms. Allocated memory is still 373.3 MB. Free memory was 294.1 MB in the beginning and 292.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 15:51:12,670 INFO L168 Benchmark]: RCFGBuilder took 557.81 ms. Allocated memory is still 373.3 MB. Free memory was 292.0 MB in the beginning and 264.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-05-21 15:51:12,670 INFO L168 Benchmark]: TraceAbstraction took 821714.67 ms. Allocated memory was 373.3 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 264.7 MB in the beginning and 13.6 GB in the end (delta: -13.3 GB). Peak memory consumption was 9.1 GB. Max. memory is 16.0 GB. [2021-05-21 15:51:12,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 373.3 MB. Free memory was 354.0 MB in the beginning and 353.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 629.16 ms. Allocated memory is still 373.3 MB. Free memory was 334.5 MB in the beginning and 296.2 MB in the end (delta: 38.3 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 68.08 ms. Allocated memory is still 373.3 MB. Free memory was 296.2 MB in the beginning and 294.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.15 ms. Allocated memory is still 373.3 MB. Free memory was 294.1 MB in the beginning and 292.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 557.81 ms. Allocated memory is still 373.3 MB. Free memory was 292.0 MB in the beginning and 264.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 821714.67 ms. Allocated memory was 373.3 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 264.7 MB in the beginning and 13.6 GB in the end (delta: -13.3 GB). Peak memory consumption was 9.1 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1111]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 122 places, 122 transitions, 322 flow. Already constructed 557181 states. Currently 50098 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 717.2ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 10.6ms, AutomataDifference: 144.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 50.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 149 SDtfs, 84 SDslu, 45 SDs, 0 SdLazy, 31 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 44.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.7ms SsaConstructionTime, 102.2ms SatisfiabilityAnalysisTime, 133.8ms InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 95 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 693.4ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 13.6ms, AutomataDifference: 173.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 43.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 251 SDtfs, 181 SDslu, 184 SDs, 0 SdLazy, 91 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 68.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1538occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 99.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 93 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.4ms SsaConstructionTime, 63.7ms SatisfiabilityAnalysisTime, 174.1ms InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 100 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2771.4ms, OverallIterations: 5, TraceHistogramMax: 4, EmptinessCheckTime: 32.7ms, AutomataDifference: 569.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 327.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 372 SDtfs, 436 SDslu, 490 SDs, 0 SdLazy, 183 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 122.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 102.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8718occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 949.0ms AutomataMinimizationTime, 4 MinimizatonAttempts, 838 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.2ms SsaConstructionTime, 74.4ms SatisfiabilityAnalysisTime, 379.0ms InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 792 SizeOfPredicates, 4 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 6/8 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 - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 105 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13410.8ms, OverallIterations: 6, TraceHistogramMax: 5, EmptinessCheckTime: 110.6ms, AutomataDifference: 3300.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3817.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 532 SDtfs, 744 SDslu, 1117 SDs, 0 SdLazy, 346 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 429.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 204.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=50198occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4722.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 6048 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 43.9ms SsaConstructionTime, 95.6ms SatisfiabilityAnalysisTime, 665.8ms InterpolantComputationTime, 584 NumberOfCodeBlocks, 584 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 1398 SizeOfPredicates, 10 NumberOfNonLiveVariables, 385 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 26/46 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 - StatisticsResult: Ultimate Automizer benchmark data with 5 thread instances CFG has 7 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 199094.4ms, OverallIterations: 6, TraceHistogramMax: 6, EmptinessCheckTime: 480.3ms, AutomataDifference: 18755.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 134690.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 590 SDtfs, 868 SDslu, 1059 SDs, 0 SdLazy, 283 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 159.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 237.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=291078occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 42953.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 39673 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 46.0ms SsaConstructionTime, 89.1ms SatisfiabilityAnalysisTime, 1392.0ms InterpolantComputationTime, 599 NumberOfCodeBlocks, 599 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 478 ConstructedInterpolants, 0 QuantifiedInterpolants, 1346 SizeOfPredicates, 10 NumberOfNonLiveVariables, 385 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 26/46 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 - StatisticsResult: Ultimate Automizer benchmark data with 6 thread instances CFG has 8 procedures, 115 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 604780.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 604779.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown