/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:17:03,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:17:03,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:17:03,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 17:17:03,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-12 17:17:03,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-12 17:17:03,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-12 17:17:03,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-12 17:17:03,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-12 17:17:03,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-12 17:17:03,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-12 17:17:03,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-12 17:17:03,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-12 17:17:03,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-12 17:17:03,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-12 17:17:03,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-12 17:17:03,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-12 17:17:03,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:17:03,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:17:03,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:17:03,322 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 [2021-06-12 17:17:03,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:17:03,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:17:03,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:17:03,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:17:03,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:17:03,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:17:03,354 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:17:03,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:17:03,355 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:17:03,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:17:03,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:17:03,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:17:03,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:17:03,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:17:03,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:17:03,356 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:17:03,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:17:03,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:17:03,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:17:03,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:17:03,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:17:03,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:17:03,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:17:03,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:17:03,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:17:03,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:17:03,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:17:03,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:17:03,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:17:03,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:17:03,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:17:03,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:17:03,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:17:03,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:17:03,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:17:03,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:17:03,620 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:17:03,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-06-12 17:17:03,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149bb7caa/2c1b1d817b994c6787a688263f113fa9/FLAGe393c798d [2021-06-12 17:17:04,113 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:17:04,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-06-12 17:17:04,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149bb7caa/2c1b1d817b994c6787a688263f113fa9/FLAGe393c798d [2021-06-12 17:17:04,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149bb7caa/2c1b1d817b994c6787a688263f113fa9 [2021-06-12 17:17:04,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:17:04,146 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:17:04,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:17:04,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:17:04,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:17:04,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdec8bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04, skipping insertion in model container [2021-06-12 17:17:04,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:17:04,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:17:04,332 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i[949,962] [2021-06-12 17:17:04,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:17:04,468 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:17:04,477 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i[949,962] [2021-06-12 17:17:04,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:17:04,558 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:17:04,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04 WrapperNode [2021-06-12 17:17:04,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:17:04,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:17:04,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:17:04,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:17:04,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:17:04,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:17:04,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:17:04,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:17:04,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... [2021-06-12 17:17:04,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:17:04,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:17:04,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:17:04,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:17:04,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:17:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:17:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 17:17:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:17:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:17:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-12 17:17:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-12 17:17:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-12 17:17:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-12 17:17:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-12 17:17:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-12 17:17:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:17:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 17:17:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:17:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:17:04,728 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:17:04,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:17:04,996 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-12 17:17:04,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:17:04 BoogieIcfgContainer [2021-06-12 17:17:04,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:17:04,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:17:04,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:17:05,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:17:05,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:17:04" (1/3) ... [2021-06-12 17:17:05,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ec4b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:17:05, skipping insertion in model container [2021-06-12 17:17:05,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:04" (2/3) ... [2021-06-12 17:17:05,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ec4b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:17:05, skipping insertion in model container [2021-06-12 17:17:05,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:17:04" (3/3) ... [2021-06-12 17:17:05,002 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2021-06-12 17:17:05,006 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:17:05,006 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:17:05,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:17:05,006 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:17:05,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,025 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,025 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,025 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,026 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,028 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,029 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,030 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:05,036 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-12 17:17:05,050 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-12 17:17:05,061 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:17:05,061 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:17:05,062 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:17:05,062 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:17:05,062 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:17:05,062 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:17:05,062 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:17:05,062 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:17:05,068 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-12 17:17:05,454 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:05,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-12 17:17:05,508 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:05,508 INFO L472 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] [2021-06-12 17:17:05,508 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:05,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:05,512 INFO L82 PathProgramCache]: Analyzing trace with hash 369061162, now seen corresponding path program 1 times [2021-06-12 17:17:05,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:05,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680798461] [2021-06-12 17:17:05,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:05,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:05,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680798461] [2021-06-12 17:17:05,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680798461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:05,868 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:05,868 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:17:05,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661068560] [2021-06-12 17:17:05,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:17:05,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:05,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:17:05,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:17:05,898 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:06,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:06,257 INFO L93 Difference]: Finished difference Result 18803 states and 64756 transitions. [2021-06-12 17:17:06,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:17:06,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-06-12 17:17:06,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:06,298 INFO L225 Difference]: With dead ends: 18803 [2021-06-12 17:17:06,298 INFO L226 Difference]: Without dead ends: 6112 [2021-06-12 17:17:06,299 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 144.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:17:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2021-06-12 17:17:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 5272. [2021-06-12 17:17:06,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 5271 states have (on average 3.358565737051793) internal successors, (17703), 5271 states have internal predecessors, (17703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:06,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 17703 transitions. [2021-06-12 17:17:06,621 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 17703 transitions. Word has length 49 [2021-06-12 17:17:06,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:06,624 INFO L482 AbstractCegarLoop]: Abstraction has 5272 states and 17703 transitions. [2021-06-12 17:17:06,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:06,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 17703 transitions. [2021-06-12 17:17:06,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-12 17:17:06,640 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:06,640 INFO L472 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] [2021-06-12 17:17:06,640 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:17:06,640 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:06,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:06,642 INFO L82 PathProgramCache]: Analyzing trace with hash -48219191, now seen corresponding path program 1 times [2021-06-12 17:17:06,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:06,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648262353] [2021-06-12 17:17:06,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:06,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:06,751 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:06,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648262353] [2021-06-12 17:17:06,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648262353] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:06,751 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:06,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:17:06,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301100023] [2021-06-12 17:17:06,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:17:06,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:06,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:17:06,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:17:06,755 INFO L87 Difference]: Start difference. First operand 5272 states and 17703 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:06,881 INFO L93 Difference]: Finished difference Result 5832 states and 19436 transitions. [2021-06-12 17:17:06,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:17:06,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2021-06-12 17:17:06,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:06,904 INFO L225 Difference]: With dead ends: 5832 [2021-06-12 17:17:06,904 INFO L226 Difference]: Without dead ends: 4852 [2021-06-12 17:17:06,905 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 91.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:17:06,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2021-06-12 17:17:07,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 4852. [2021-06-12 17:17:07,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4852 states, 4851 states have (on average 3.3327149041434754) internal successors, (16167), 4851 states have internal predecessors, (16167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:07,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4852 states to 4852 states and 16167 transitions. [2021-06-12 17:17:07,063 INFO L78 Accepts]: Start accepts. Automaton has 4852 states and 16167 transitions. Word has length 51 [2021-06-12 17:17:07,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:07,063 INFO L482 AbstractCegarLoop]: Abstraction has 4852 states and 16167 transitions. [2021-06-12 17:17:07,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:07,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4852 states and 16167 transitions. [2021-06-12 17:17:07,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-12 17:17:07,072 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:07,072 INFO L472 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] [2021-06-12 17:17:07,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:17:07,072 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:07,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:07,073 INFO L82 PathProgramCache]: Analyzing trace with hash -2067212407, now seen corresponding path program 1 times [2021-06-12 17:17:07,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:07,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413773908] [2021-06-12 17:17:07,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:07,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:07,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413773908] [2021-06-12 17:17:07,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413773908] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:07,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:07,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:17:07,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132624412] [2021-06-12 17:17:07,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:17:07,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:07,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:17:07,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:17:07,215 INFO L87 Difference]: Start difference. First operand 4852 states and 16167 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:07,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:07,510 INFO L93 Difference]: Finished difference Result 7536 states and 24719 transitions. [2021-06-12 17:17:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:17:07,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2021-06-12 17:17:07,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:07,545 INFO L225 Difference]: With dead ends: 7536 [2021-06-12 17:17:07,545 INFO L226 Difference]: Without dead ends: 5632 [2021-06-12 17:17:07,546 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 235.9ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:17:07,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2021-06-12 17:17:07,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 4792. [2021-06-12 17:17:07,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4792 states, 4791 states have (on average 3.308703819661866) internal successors, (15852), 4791 states have internal predecessors, (15852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:07,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 15852 transitions. [2021-06-12 17:17:07,727 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 15852 transitions. Word has length 51 [2021-06-12 17:17:07,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:07,730 INFO L482 AbstractCegarLoop]: Abstraction has 4792 states and 15852 transitions. [2021-06-12 17:17:07,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:07,731 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 15852 transitions. [2021-06-12 17:17:07,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-12 17:17:07,739 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:07,739 INFO L472 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] [2021-06-12 17:17:07,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:17:07,739 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:07,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:07,741 INFO L82 PathProgramCache]: Analyzing trace with hash 551537968, now seen corresponding path program 1 times [2021-06-12 17:17:07,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:07,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476707010] [2021-06-12 17:17:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:07,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:07,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476707010] [2021-06-12 17:17:07,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476707010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:07,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:07,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:17:07,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636019687] [2021-06-12 17:17:07,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:17:07,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:07,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:17:07,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:17:07,858 INFO L87 Difference]: Start difference. First operand 4792 states and 15852 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:07,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:07,987 INFO L93 Difference]: Finished difference Result 6226 states and 20400 transitions. [2021-06-12 17:17:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:17:07,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-12 17:17:07,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:07,996 INFO L225 Difference]: With dead ends: 6226 [2021-06-12 17:17:07,996 INFO L226 Difference]: Without dead ends: 3286 [2021-06-12 17:17:07,997 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 99.3ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-12 17:17:08,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2021-06-12 17:17:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3286. [2021-06-12 17:17:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3285 states have (on average 3.1963470319634704) internal successors, (10500), 3285 states have internal predecessors, (10500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 10500 transitions. [2021-06-12 17:17:08,068 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 10500 transitions. Word has length 53 [2021-06-12 17:17:08,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:08,070 INFO L482 AbstractCegarLoop]: Abstraction has 3286 states and 10500 transitions. [2021-06-12 17:17:08,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 10500 transitions. [2021-06-12 17:17:08,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-12 17:17:08,076 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:08,076 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:17:08,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:17:08,079 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:08,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:08,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1829839270, now seen corresponding path program 1 times [2021-06-12 17:17:08,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:08,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625169690] [2021-06-12 17:17:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:08,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:08,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:08,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625169690] [2021-06-12 17:17:08,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625169690] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:08,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:08,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:17:08,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928927804] [2021-06-12 17:17:08,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:17:08,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:08,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:17:08,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:17:08,186 INFO L87 Difference]: Start difference. First operand 3286 states and 10500 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:08,398 INFO L93 Difference]: Finished difference Result 4406 states and 13936 transitions. [2021-06-12 17:17:08,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-12 17:17:08,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-12 17:17:08,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:08,407 INFO L225 Difference]: With dead ends: 4406 [2021-06-12 17:17:08,407 INFO L226 Difference]: Without dead ends: 3526 [2021-06-12 17:17:08,408 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 177.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:17:08,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2021-06-12 17:17:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3046. [2021-06-12 17:17:08,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3045 states have (on average 3.1789819376026274) internal successors, (9680), 3045 states have internal predecessors, (9680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 9680 transitions. [2021-06-12 17:17:08,468 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 9680 transitions. Word has length 54 [2021-06-12 17:17:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:08,468 INFO L482 AbstractCegarLoop]: Abstraction has 3046 states and 9680 transitions. [2021-06-12 17:17:08,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 9680 transitions. [2021-06-12 17:17:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-12 17:17:08,473 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:08,473 INFO L472 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] [2021-06-12 17:17:08,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:17:08,474 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:08,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:08,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1886151065, now seen corresponding path program 1 times [2021-06-12 17:17:08,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:08,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696706284] [2021-06-12 17:17:08,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:08,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:08,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:08,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696706284] [2021-06-12 17:17:08,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696706284] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:08,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:08,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:17:08,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74679225] [2021-06-12 17:17:08,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:17:08,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:08,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:17:08,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:17:08,573 INFO L87 Difference]: Start difference. First operand 3046 states and 9680 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:08,667 INFO L93 Difference]: Finished difference Result 3833 states and 12056 transitions. [2021-06-12 17:17:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:17:08,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 56 [2021-06-12 17:17:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:08,674 INFO L225 Difference]: With dead ends: 3833 [2021-06-12 17:17:08,674 INFO L226 Difference]: Without dead ends: 2817 [2021-06-12 17:17:08,674 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 76.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:17:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2021-06-12 17:17:08,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2817. [2021-06-12 17:17:08,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2817 states, 2816 states have (on average 3.1352982954545454) internal successors, (8829), 2816 states have internal predecessors, (8829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2817 states to 2817 states and 8829 transitions. [2021-06-12 17:17:08,717 INFO L78 Accepts]: Start accepts. Automaton has 2817 states and 8829 transitions. Word has length 56 [2021-06-12 17:17:08,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:08,718 INFO L482 AbstractCegarLoop]: Abstraction has 2817 states and 8829 transitions. [2021-06-12 17:17:08,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2817 states and 8829 transitions. [2021-06-12 17:17:08,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-12 17:17:08,723 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:08,723 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:17:08,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:17:08,724 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:08,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:08,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1239263126, now seen corresponding path program 1 times [2021-06-12 17:17:08,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:08,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893403995] [2021-06-12 17:17:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:08,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:08,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:08,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893403995] [2021-06-12 17:17:08,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893403995] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:08,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:08,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:17:08,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968972515] [2021-06-12 17:17:08,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:17:08,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:08,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:17:08,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:17:08,830 INFO L87 Difference]: Start difference. First operand 2817 states and 8829 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:08,942 INFO L93 Difference]: Finished difference Result 3045 states and 9335 transitions. [2021-06-12 17:17:08,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:17:08,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-12 17:17:08,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:08,947 INFO L225 Difference]: With dead ends: 3045 [2021-06-12 17:17:08,947 INFO L226 Difference]: Without dead ends: 2193 [2021-06-12 17:17:08,947 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 105.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:17:08,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2021-06-12 17:17:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2021-06-12 17:17:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 2192 states have (on average 3.0182481751824817) internal successors, (6616), 2192 states have internal predecessors, (6616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 6616 transitions. [2021-06-12 17:17:08,986 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 6616 transitions. Word has length 57 [2021-06-12 17:17:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:08,986 INFO L482 AbstractCegarLoop]: Abstraction has 2193 states and 6616 transitions. [2021-06-12 17:17:08,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:08,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 6616 transitions. [2021-06-12 17:17:08,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-12 17:17:08,990 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:08,990 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:17:08,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:17:08,991 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:08,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:08,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1322905655, now seen corresponding path program 1 times [2021-06-12 17:17:08,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:08,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786872929] [2021-06-12 17:17:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:09,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:09,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:09,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786872929] [2021-06-12 17:17:09,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786872929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:09,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:09,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:17:09,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904618837] [2021-06-12 17:17:09,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:17:09,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:09,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:17:09,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:17:09,060 INFO L87 Difference]: Start difference. First operand 2193 states and 6616 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:09,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:09,178 INFO L93 Difference]: Finished difference Result 1941 states and 5722 transitions. [2021-06-12 17:17:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:17:09,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-12 17:17:09,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:09,181 INFO L225 Difference]: With dead ends: 1941 [2021-06-12 17:17:09,181 INFO L226 Difference]: Without dead ends: 1033 [2021-06-12 17:17:09,181 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 96.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:17:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2021-06-12 17:17:09,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 985. [2021-06-12 17:17:09,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 984 states have (on average 2.866869918699187) internal successors, (2821), 984 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:09,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 2821 transitions. [2021-06-12 17:17:09,197 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 2821 transitions. Word has length 59 [2021-06-12 17:17:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:09,197 INFO L482 AbstractCegarLoop]: Abstraction has 985 states and 2821 transitions. [2021-06-12 17:17:09,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 2821 transitions. [2021-06-12 17:17:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 17:17:09,199 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:09,199 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:17:09,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:17:09,199 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:09,199 INFO L82 PathProgramCache]: Analyzing trace with hash -988566454, now seen corresponding path program 1 times [2021-06-12 17:17:09,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:09,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189853045] [2021-06-12 17:17:09,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:09,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:09,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189853045] [2021-06-12 17:17:09,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189853045] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:09,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:09,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:17:09,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207027498] [2021-06-12 17:17:09,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:17:09,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:09,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:17:09,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:17:09,263 INFO L87 Difference]: Start difference. First operand 985 states and 2821 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:09,332 INFO L93 Difference]: Finished difference Result 979 states and 2811 transitions. [2021-06-12 17:17:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-12 17:17:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-12 17:17:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:09,332 INFO L225 Difference]: With dead ends: 979 [2021-06-12 17:17:09,332 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 17:17:09,333 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 81.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:17:09,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 17:17:09,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 17:17:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 17:17:09,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-06-12 17:17:09,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:09,333 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 17:17:09,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:09,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 17:17:09,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 17:17:09,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:17:09,335 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:17:09,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:17:09 BasicIcfg [2021-06-12 17:17:09,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:17:09,337 INFO L168 Benchmark]: Toolchain (without parser) took 5191.36 ms. Allocated memory was 219.2 MB in the beginning and 1.1 GB in the end (delta: 902.8 MB). Free memory was 181.8 MB in the beginning and 796.2 MB in the end (delta: -614.4 MB). Peak memory consumption was 288.7 MB. Max. memory is 8.0 GB. [2021-06-12 17:17:09,338 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 219.2 MB. Free memory is still 199.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:17:09,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.64 ms. Allocated memory is still 219.2 MB. Free memory was 181.6 MB in the beginning and 180.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-12 17:17:09,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.75 ms. Allocated memory is still 219.2 MB. Free memory was 179.8 MB in the beginning and 178.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 17:17:09,338 INFO L168 Benchmark]: Boogie Preprocessor took 31.21 ms. Allocated memory is still 219.2 MB. Free memory was 178.2 MB in the beginning and 176.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:17:09,338 INFO L168 Benchmark]: RCFGBuilder took 359.28 ms. Allocated memory is still 219.2 MB. Free memory was 176.6 MB in the beginning and 152.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:17:09,338 INFO L168 Benchmark]: TraceAbstraction took 4338.64 ms. Allocated memory was 219.2 MB in the beginning and 1.1 GB in the end (delta: 902.8 MB). Free memory was 152.0 MB in the beginning and 796.2 MB in the end (delta: -644.2 MB). Peak memory consumption was 259.7 MB. Max. memory is 8.0 GB. [2021-06-12 17:17:09,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 219.2 MB. Free memory is still 199.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 410.64 ms. Allocated memory is still 219.2 MB. Free memory was 181.6 MB in the beginning and 180.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 45.75 ms. Allocated memory is still 219.2 MB. Free memory was 179.8 MB in the beginning and 178.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.21 ms. Allocated memory is still 219.2 MB. Free memory was 178.2 MB in the beginning and 176.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 359.28 ms. Allocated memory is still 219.2 MB. Free memory was 176.6 MB in the beginning and 152.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4338.64 ms. Allocated memory was 219.2 MB in the beginning and 1.1 GB in the end (delta: 902.8 MB). Free memory was 152.0 MB in the beginning and 796.2 MB in the end (delta: -644.2 MB). Peak memory consumption was 259.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4274.3ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 104.3ms, AutomataDifference: 1690.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 392.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 957 SDtfs, 1593 SDslu, 3080 SDs, 0 SdLazy, 346 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 255.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1108.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 880.8ms AutomataMinimizationTime, 9 MinimizatonAttempts, 2208 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.3ms SsaConstructionTime, 152.3ms SatisfiabilityAnalysisTime, 848.6ms InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 1866 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...