/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:20:36,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:20:36,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:20:36,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 00:20:36,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:20:36,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:20:36,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:20:36,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:20:36,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:20:36,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:20:36,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:20:36,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:20:36,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:20:36,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:20:36,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:20:36,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:20:36,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 00:20:36,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:20:36,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:20:36,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:20:36,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-14 00:20:36,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:20:36,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:20:36,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:20:36,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:20:36,228 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:20:36,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:20:36,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:20:36,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:20:36,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:20:36,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:20:36,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:20:36,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:20:36,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:20:36,230 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:20:36,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:20:36,230 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:20:36,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:20:36,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:20:36,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:20:36,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:20:36,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:20:36,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:20:36,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:20:36,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:20:36,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:20:36,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:20:36,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:20:36,232 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:20:36,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:20:36,232 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:20:36,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:20:36,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:20:36,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:20:36,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:20:36,556 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:20:36,556 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:20:36,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2021-07-14 00:20:36,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d8000321/969660968d2d4ea5a4e9e9d2f8c2c0c1/FLAG6e939db84 [2021-07-14 00:20:37,079 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:20:37,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2021-07-14 00:20:37,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d8000321/969660968d2d4ea5a4e9e9d2f8c2c0c1/FLAG6e939db84 [2021-07-14 00:20:37,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d8000321/969660968d2d4ea5a4e9e9d2f8c2c0c1 [2021-07-14 00:20:37,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:20:37,600 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:20:37,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:20:37,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:20:37,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:20:37,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:20:37" (1/1) ... [2021-07-14 00:20:37,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a80aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:37, skipping insertion in model container [2021-07-14 00:20:37,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:20:37" (1/1) ... [2021-07-14 00:20:37,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:20:37,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:20:37,769 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i[950,963] [2021-07-14 00:20:37,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:20:37,992 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:20:38,003 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i[950,963] [2021-07-14 00:20:38,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:20:38,093 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:20:38,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38 WrapperNode [2021-07-14 00:20:38,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:20:38,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:20:38,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:20:38,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:20:38,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... [2021-07-14 00:20:38,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... [2021-07-14 00:20:38,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:20:38,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:20:38,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:20:38,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:20:38,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... [2021-07-14 00:20:38,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... [2021-07-14 00:20:38,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... [2021-07-14 00:20:38,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... [2021-07-14 00:20:38,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... [2021-07-14 00:20:38,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... [2021-07-14 00:20:38,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... [2021-07-14 00:20:38,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:20:38,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:20:38,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:20:38,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:20:38,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:20:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:20:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:20:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:20:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:20:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:20:38,290 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:20:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:20:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:20:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-14 00:20:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-14 00:20:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:20:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:20:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:20:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:20:38,293 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:20:38,639 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:20:38,639 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-14 00:20:38,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:20:38 BoogieIcfgContainer [2021-07-14 00:20:38,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:20:38,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:20:38,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:20:38,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:20:38,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:20:37" (1/3) ... [2021-07-14 00:20:38,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d43a72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:20:38, skipping insertion in model container [2021-07-14 00:20:38,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:38" (2/3) ... [2021-07-14 00:20:38,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d43a72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:20:38, skipping insertion in model container [2021-07-14 00:20:38,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:20:38" (3/3) ... [2021-07-14 00:20:38,648 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2021-07-14 00:20:38,653 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:20:38,653 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:20:38,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:20:38,654 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:20:38,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,685 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,685 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,689 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,690 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,690 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,700 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,700 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,700 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,702 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,702 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,708 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,708 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,708 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:38,717 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:20:38,739 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-14 00:20:38,769 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:20:38,769 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:20:38,769 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:20:38,769 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:20:38,769 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:20:38,769 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:20:38,769 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:20:38,770 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:20:39,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 4769 states have (on average 1.8863493394841686) internal successors, (8996), 5559 states have internal predecessors, (8996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:39,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-07-14 00:20:39,404 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:39,405 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:39,405 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:39,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1743011939, now seen corresponding path program 1 times [2021-07-14 00:20:39,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:39,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123226220] [2021-07-14 00:20:39,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:39,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:39,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:39,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:39,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:39,759 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:20:39,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:20:39,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:39,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:20:39,806 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:20:39,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:39,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:39,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:39,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:39,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123226220] [2021-07-14 00:20:39,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123226220] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:39,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:39,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:20:39,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779287206] [2021-07-14 00:20:39,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:20:39,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:39,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:20:39,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:20:39,850 INFO L87 Difference]: Start difference. First operand has 5560 states, 4769 states have (on average 1.8863493394841686) internal successors, (8996), 5559 states have internal predecessors, (8996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:40,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:40,107 INFO L93 Difference]: Finished difference Result 6507 states and 10074 transitions. [2021-07-14 00:20:40,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:20:40,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-07-14 00:20:40,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:40,135 INFO L225 Difference]: With dead ends: 6507 [2021-07-14 00:20:40,135 INFO L226 Difference]: Without dead ends: 2373 [2021-07-14 00:20:40,136 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 153.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:20:40,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2021-07-14 00:20:40,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2373. [2021-07-14 00:20:40,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 2324 states have (on average 1.9789156626506024) internal successors, (4599), 2372 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:40,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 4599 transitions. [2021-07-14 00:20:40,260 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 4599 transitions. Word has length 50 [2021-07-14 00:20:40,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:40,261 INFO L482 AbstractCegarLoop]: Abstraction has 2373 states and 4599 transitions. [2021-07-14 00:20:40,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 4599 transitions. [2021-07-14 00:20:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-14 00:20:40,265 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:40,265 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:40,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:20:40,266 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:40,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1795798875, now seen corresponding path program 1 times [2021-07-14 00:20:40,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:40,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350705147] [2021-07-14 00:20:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:40,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:40,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:40,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:40,384 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:20:40,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:20:40,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:20:40,408 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:20:40,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:40,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:40,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:40,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:40,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350705147] [2021-07-14 00:20:40,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350705147] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:40,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:40,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:40,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967007000] [2021-07-14 00:20:40,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:40,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:40,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:40,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:40,421 INFO L87 Difference]: Start difference. First operand 2373 states and 4599 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:40,607 INFO L93 Difference]: Finished difference Result 1833 states and 3394 transitions. [2021-07-14 00:20:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:20:40,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-07-14 00:20:40,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:40,613 INFO L225 Difference]: With dead ends: 1833 [2021-07-14 00:20:40,613 INFO L226 Difference]: Without dead ends: 1085 [2021-07-14 00:20:40,614 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 106.3ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:20:40,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2021-07-14 00:20:40,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1085. [2021-07-14 00:20:40,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 1052 states have (on average 1.9334600760456273) internal successors, (2034), 1084 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 2034 transitions. [2021-07-14 00:20:40,640 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 2034 transitions. Word has length 54 [2021-07-14 00:20:40,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:40,641 INFO L482 AbstractCegarLoop]: Abstraction has 1085 states and 2034 transitions. [2021-07-14 00:20:40,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 2034 transitions. [2021-07-14 00:20:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-14 00:20:40,645 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:40,645 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:40,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:20:40,645 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:40,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:40,653 INFO L82 PathProgramCache]: Analyzing trace with hash -835920231, now seen corresponding path program 1 times [2021-07-14 00:20:40,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:40,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688329211] [2021-07-14 00:20:40,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:40,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:40,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:40,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:40,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:40,774 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:20:40,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:20:40,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:20:40,799 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:20:40,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:40,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:40,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:40,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:40,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688329211] [2021-07-14 00:20:40,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688329211] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:40,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:40,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:20:40,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273638032] [2021-07-14 00:20:40,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:20:40,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:40,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:20:40,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:20:40,818 INFO L87 Difference]: Start difference. First operand 1085 states and 2034 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:40,969 INFO L93 Difference]: Finished difference Result 653 states and 1154 transitions. [2021-07-14 00:20:40,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:20:40,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-07-14 00:20:40,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:40,972 INFO L225 Difference]: With dead ends: 653 [2021-07-14 00:20:40,972 INFO L226 Difference]: Without dead ends: 316 [2021-07-14 00:20:40,972 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 132.9ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:20:40,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-07-14 00:20:40,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-07-14 00:20:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 307 states have (on average 1.710097719869707) internal successors, (525), 315 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:40,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 525 transitions. [2021-07-14 00:20:40,979 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 525 transitions. Word has length 58 [2021-07-14 00:20:40,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:40,981 INFO L482 AbstractCegarLoop]: Abstraction has 316 states and 525 transitions. [2021-07-14 00:20:40,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:40,981 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 525 transitions. [2021-07-14 00:20:40,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-14 00:20:40,981 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:40,982 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:40,982 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:20:40,982 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:40,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:40,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1013019991, now seen corresponding path program 1 times [2021-07-14 00:20:40,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:40,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276717877] [2021-07-14 00:20:40,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:41,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:41,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:41,085 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-07-14 00:20:41,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:20:41,095 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:41,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:41,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:41,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:41,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:41,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:41,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276717877] [2021-07-14 00:20:41,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276717877] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:41,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:41,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:41,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021023593] [2021-07-14 00:20:41,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:41,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:41,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:41,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:41,136 INFO L87 Difference]: Start difference. First operand 316 states and 525 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:41,238 INFO L93 Difference]: Finished difference Result 436 states and 767 transitions. [2021-07-14 00:20:41,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:20:41,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-14 00:20:41,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:41,240 INFO L225 Difference]: With dead ends: 436 [2021-07-14 00:20:41,240 INFO L226 Difference]: Without dead ends: 282 [2021-07-14 00:20:41,241 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 106.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:20:41,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-07-14 00:20:41,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 268. [2021-07-14 00:20:41,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 259 states have (on average 1.718146718146718) internal successors, (445), 267 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 445 transitions. [2021-07-14 00:20:41,246 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 445 transitions. Word has length 62 [2021-07-14 00:20:41,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:41,248 INFO L482 AbstractCegarLoop]: Abstraction has 268 states and 445 transitions. [2021-07-14 00:20:41,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 445 transitions. [2021-07-14 00:20:41,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-14 00:20:41,250 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:41,260 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:41,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:20:41,260 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:41,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:41,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1490868039, now seen corresponding path program 2 times [2021-07-14 00:20:41,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:41,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051591879] [2021-07-14 00:20:41,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:41,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:41,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:41,314 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-07-14 00:20:41,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:20:41,325 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:41,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:41,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:41,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:41,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:41,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:41,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:41,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051591879] [2021-07-14 00:20:41,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051591879] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:41,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:41,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:41,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739657901] [2021-07-14 00:20:41,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:41,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:41,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:41,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:41,374 INFO L87 Difference]: Start difference. First operand 268 states and 445 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:41,498 INFO L93 Difference]: Finished difference Result 382 states and 681 transitions. [2021-07-14 00:20:41,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:20:41,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-14 00:20:41,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:41,503 INFO L225 Difference]: With dead ends: 382 [2021-07-14 00:20:41,503 INFO L226 Difference]: Without dead ends: 232 [2021-07-14 00:20:41,503 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 121.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:20:41,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-07-14 00:20:41,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 224. [2021-07-14 00:20:41,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 215 states have (on average 1.7627906976744185) internal successors, (379), 223 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 379 transitions. [2021-07-14 00:20:41,508 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 379 transitions. Word has length 62 [2021-07-14 00:20:41,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:41,508 INFO L482 AbstractCegarLoop]: Abstraction has 224 states and 379 transitions. [2021-07-14 00:20:41,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,509 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 379 transitions. [2021-07-14 00:20:41,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-14 00:20:41,509 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:41,509 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:41,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 00:20:41,510 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:41,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:41,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1170079943, now seen corresponding path program 3 times [2021-07-14 00:20:41,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:41,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906341912] [2021-07-14 00:20:41,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:41,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:41,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:41,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:41,613 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-07-14 00:20:41,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-14 00:20:41,625 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:41,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:41,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:41,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:41,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:41,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:41,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906341912] [2021-07-14 00:20:41,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906341912] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:41,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:41,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:20:41,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814813152] [2021-07-14 00:20:41,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:20:41,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:41,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:20:41,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:20:41,673 INFO L87 Difference]: Start difference. First operand 224 states and 379 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:41,759 INFO L93 Difference]: Finished difference Result 334 states and 605 transitions. [2021-07-14 00:20:41,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:20:41,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-14 00:20:41,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:41,761 INFO L225 Difference]: With dead ends: 334 [2021-07-14 00:20:41,761 INFO L226 Difference]: Without dead ends: 207 [2021-07-14 00:20:41,761 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 104.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:20:41,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-07-14 00:20:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-07-14 00:20:41,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 198 states have (on average 1.7878787878787878) internal successors, (354), 206 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 354 transitions. [2021-07-14 00:20:41,765 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 354 transitions. Word has length 62 [2021-07-14 00:20:41,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:41,766 INFO L482 AbstractCegarLoop]: Abstraction has 207 states and 354 transitions. [2021-07-14 00:20:41,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,766 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 354 transitions. [2021-07-14 00:20:41,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-14 00:20:41,767 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:41,767 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:41,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 00:20:41,767 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:41,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:41,768 INFO L82 PathProgramCache]: Analyzing trace with hash 210816741, now seen corresponding path program 4 times [2021-07-14 00:20:41,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:41,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696493647] [2021-07-14 00:20:41,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:41,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:41,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:41,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:41,857 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:41,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:41,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:41,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:41,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:41,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:41,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:41,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:41,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696493647] [2021-07-14 00:20:41,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696493647] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:41,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:41,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:41,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826632877] [2021-07-14 00:20:41,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:41,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:41,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:41,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:41,901 INFO L87 Difference]: Start difference. First operand 207 states and 354 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:41,961 INFO L93 Difference]: Finished difference Result 171 states and 294 transitions. [2021-07-14 00:20:41,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:20:41,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-14 00:20:41,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:41,962 INFO L225 Difference]: With dead ends: 171 [2021-07-14 00:20:41,962 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:20:41,962 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 82.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:20:41,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:20:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:20:41,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:20:41,962 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2021-07-14 00:20:41,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:41,963 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:20:41,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:41,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:20:41,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:20:41,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 00:20:41,965 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:20:41,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:20:41 BasicIcfg [2021-07-14 00:20:41,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:20:41,967 INFO L168 Benchmark]: Toolchain (without parser) took 4367.51 ms. Allocated memory was 216.0 MB in the beginning and 264.2 MB in the end (delta: 48.2 MB). Free memory was 179.6 MB in the beginning and 167.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:41,968 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 216.0 MB. Free memory was 198.2 MB in the beginning and 198.1 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:20:41,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.78 ms. Allocated memory is still 216.0 MB. Free memory was 179.4 MB in the beginning and 189.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:41,968 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.64 ms. Allocated memory is still 216.0 MB. Free memory was 189.7 MB in the beginning and 187.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:41,969 INFO L168 Benchmark]: Boogie Preprocessor took 46.01 ms. Allocated memory is still 216.0 MB. Free memory was 187.6 MB in the beginning and 186.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:41,969 INFO L168 Benchmark]: RCFGBuilder took 437.70 ms. Allocated memory is still 216.0 MB. Free memory was 186.1 MB in the beginning and 162.6 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:41,969 INFO L168 Benchmark]: TraceAbstraction took 3324.09 ms. Allocated memory was 216.0 MB in the beginning and 264.2 MB in the end (delta: 48.2 MB). Free memory was 162.4 MB in the beginning and 167.6 MB in the end (delta: -5.1 MB). Peak memory consumption was 44.7 MB. Max. memory is 8.0 GB. [2021-07-14 00:20:41,971 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 216.0 MB. Free memory was 198.2 MB in the beginning and 198.1 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 492.78 ms. Allocated memory is still 216.0 MB. Free memory was 179.4 MB in the beginning and 189.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 60.64 ms. Allocated memory is still 216.0 MB. Free memory was 189.7 MB in the beginning and 187.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.01 ms. Allocated memory is still 216.0 MB. Free memory was 187.6 MB in the beginning and 186.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 437.70 ms. Allocated memory is still 216.0 MB. Free memory was 186.1 MB in the beginning and 162.6 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3324.09 ms. Allocated memory was 216.0 MB in the beginning and 264.2 MB in the end (delta: 48.2 MB). Free memory was 162.4 MB in the beginning and 167.6 MB in the end (delta: -5.1 MB). Peak memory consumption was 44.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 17958, positive: 17440, positive conditional: 17440, positive unconditional: 0, negative: 518, negative conditional: 518, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17882, positive: 17440, positive conditional: 0, positive unconditional: 17440, negative: 442, negative conditional: 0, negative unconditional: 442, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 668, positive: 654, positive conditional: 0, positive unconditional: 654, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 668, positive: 650, positive conditional: 0, positive unconditional: 650, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17882, positive: 16786, positive conditional: 0, positive unconditional: 16786, negative: 428, negative conditional: 0, negative unconditional: 428, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 654, Positive conditional cache size: 0, Positive unconditional cache size: 654, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Independence queries for same thread: 76 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3197.0ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 89.2ms, AutomataDifference: 1046.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 556.6ms, PartialOrderReductionTime: 533.1ms, HoareTripleCheckerStatistics: 604 SDtfs, 755 SDslu, 2121 SDs, 0 SdLazy, 246 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 218.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 808.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 158.8ms AutomataMinimizationTime, 7 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.1ms SsaConstructionTime, 242.8ms SatisfiabilityAnalysisTime, 869.2ms InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 403 ConstructedInterpolants, 0 QuantifiedInterpolants, 1181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...