/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9b7772ad7705253c1305067fc38dc9bc7271fbe3-9b7772a [2021-04-15 01:06:44,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 01:06:44,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 01:06:44,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-15 01:06:44,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-15 01:06:44,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-15 01:06:44,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-15 01:06:44,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-04-15 01:06:44,412 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 01:06:44,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 01:06:44,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-04-15 01:06:44,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-04-15 01:06:44,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 01:06:44,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 01:06:44,416 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 01:06:44,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 01:06:44,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 01:06:44,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 01:06:44,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 01:06:44,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 01:06:44,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 01:06:44,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 01:06:44,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 01:06:44,419 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 01:06:44,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 01:06:44,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 01:06:44,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 01:06:44,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 01:06:44,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 01:06:44,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-15 01:06:44,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 01:06:44,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 01:06:44,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 01:06:44,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 01:06:44,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 01:06:44,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 01:06:44,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 01:06:44,421 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-04-15 01:06:44,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 01:06:44,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 01:06:44,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 01:06:44,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 01:06:44,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 01:06:44,764 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-15 01:06:44,764 INFO L275 PluginConnector]: CDTParser initialized [2021-04-15 01:06:44,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2021-04-15 01:06:44,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4541e2f2c/c0e54d2a6c1444c3b803bb67205bb0ed/FLAGb7fef29dc [2021-04-15 01:06:45,339 INFO L306 CDTParser]: Found 1 translation units. [2021-04-15 01:06:45,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i [2021-04-15 01:06:45,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4541e2f2c/c0e54d2a6c1444c3b803bb67205bb0ed/FLAGb7fef29dc [2021-04-15 01:06:45,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4541e2f2c/c0e54d2a6c1444c3b803bb67205bb0ed [2021-04-15 01:06:45,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 01:06:45,848 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-15 01:06:45,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-15 01:06:45,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-15 01:06:45,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-15 01:06:45,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 01:06:45" (1/1) ... [2021-04-15 01:06:45,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6d1ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:45, skipping insertion in model container [2021-04-15 01:06:45,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 01:06:45" (1/1) ... [2021-04-15 01:06:45,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-15 01:06:45,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-15 01:06:46,006 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i[949,962] [2021-04-15 01:06:46,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 01:06:46,188 INFO L203 MainTranslator]: Completed pre-run [2021-04-15 01:06:46,199 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.opt.i[949,962] [2021-04-15 01:06:46,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 01:06:46,288 INFO L208 MainTranslator]: Completed translation [2021-04-15 01:06:46,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46 WrapperNode [2021-04-15 01:06:46,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-15 01:06:46,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-15 01:06:46,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-15 01:06:46,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-15 01:06:46,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (1/1) ... [2021-04-15 01:06:46,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (1/1) ... [2021-04-15 01:06:46,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-15 01:06:46,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 01:06:46,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 01:06:46,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 01:06:46,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (1/1) ... [2021-04-15 01:06:46,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (1/1) ... [2021-04-15 01:06:46,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (1/1) ... [2021-04-15 01:06:46,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (1/1) ... [2021-04-15 01:06:46,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (1/1) ... [2021-04-15 01:06:46,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (1/1) ... [2021-04-15 01:06:46,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (1/1) ... [2021-04-15 01:06:46,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 01:06:46,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 01:06:46,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 01:06:46,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 01:06:46,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (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 [2021-04-15 01:06:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-15 01:06:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-15 01:06:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-15 01:06:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-15 01:06:46,401 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-15 01:06:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-15 01:06:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-15 01:06:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-15 01:06:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-15 01:06:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-15 01:06:46,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 01:06:46,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 01:06:46,405 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-15 01:06:46,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 01:06:46,761 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-15 01:06:46,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 01:06:46 BoogieIcfgContainer [2021-04-15 01:06:46,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 01:06:46,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 01:06:46,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 01:06:46,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 01:06:46,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 01:06:45" (1/3) ... [2021-04-15 01:06:46,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0220f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 01:06:46, skipping insertion in model container [2021-04-15 01:06:46,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:06:46" (2/3) ... [2021-04-15 01:06:46,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0220f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 01:06:46, skipping insertion in model container [2021-04-15 01:06:46,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 01:06:46" (3/3) ... [2021-04-15 01:06:46,768 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.opt.i [2021-04-15 01:06:46,773 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-04-15 01:06:46,773 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 01:06:46,777 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-15 01:06:46,777 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-15 01:06:46,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,805 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,805 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,805 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,807 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,807 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,812 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,812 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:06:46,820 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-15 01:06:46,834 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-15 01:06:46,859 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 01:06:46,859 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 01:06:46,860 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 01:06:46,860 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 01:06:46,860 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 01:06:46,860 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 01:06:46,860 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 01:06:46,860 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 01:06:46,873 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 61 transitions, 132 flow [2021-04-15 01:06:46,944 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1174 states, 1172 states have (on average 2.712457337883959) internal successors, (3179), 1173 states have internal predecessors, (3179), 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) [2021-04-15 01:06:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 1174 states, 1172 states have (on average 2.712457337883959) internal successors, (3179), 1173 states have internal predecessors, (3179), 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) [2021-04-15 01:06:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-04-15 01:06:46,973 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:06:46,974 INFO L551 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] [2021-04-15 01:06:46,974 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 01:06:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:06:46,979 INFO L82 PathProgramCache]: Analyzing trace with hash -894398438, now seen corresponding path program 1 times [2021-04-15 01:06:46,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:06:46,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099044196] [2021-04-15 01:06:46,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:06:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:06:47,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:06:47,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099044196] [2021-04-15 01:06:47,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:06:47,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 01:06:47,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792483457] [2021-04-15 01:06:47,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 01:06:47,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:06:47,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 01:06:47,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-04-15 01:06:47,389 INFO L87 Difference]: Start difference. First operand has 1174 states, 1172 states have (on average 2.712457337883959) internal successors, (3179), 1173 states have internal predecessors, (3179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-04-15 01:06:47,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:06:47,549 INFO L93 Difference]: Finished difference Result 1517 states and 3949 transitions. [2021-04-15 01:06:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 01:06:47,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 35 [2021-04-15 01:06:47,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:06:47,563 INFO L225 Difference]: With dead ends: 1517 [2021-04-15 01:06:47,563 INFO L226 Difference]: Without dead ends: 600 [2021-04-15 01:06:47,564 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 120.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-04-15 01:06:47,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-04-15 01:06:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2021-04-15 01:06:47,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 2.5225375626043407) internal successors, (1511), 599 states have internal predecessors, (1511), 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) [2021-04-15 01:06:47,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1511 transitions. [2021-04-15 01:06:47,628 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1511 transitions. Word has length 35 [2021-04-15 01:06:47,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:06:47,628 INFO L480 AbstractCegarLoop]: Abstraction has 600 states and 1511 transitions. [2021-04-15 01:06:47,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2021-04-15 01:06:47,629 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1511 transitions. [2021-04-15 01:06:47,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-04-15 01:06:47,631 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:06:47,631 INFO L551 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] [2021-04-15 01:06:47,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 01:06:47,632 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 01:06:47,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:06:47,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1404670555, now seen corresponding path program 1 times [2021-04-15 01:06:47,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:06:47,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415011538] [2021-04-15 01:06:47,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:06:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:06:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:06:47,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415011538] [2021-04-15 01:06:47,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:06:47,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 01:06:47,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447277078] [2021-04-15 01:06:47,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 01:06:47,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:06:47,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 01:06:47,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 01:06:47,727 INFO L87 Difference]: Start difference. First operand 600 states and 1511 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-04-15 01:06:47,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:06:47,830 INFO L93 Difference]: Finished difference Result 680 states and 1690 transitions. [2021-04-15 01:06:47,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 01:06:47,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2021-04-15 01:06:47,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:06:47,833 INFO L225 Difference]: With dead ends: 680 [2021-04-15 01:06:47,833 INFO L226 Difference]: Without dead ends: 540 [2021-04-15 01:06:47,835 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 104.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-04-15 01:06:47,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-04-15 01:06:47,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2021-04-15 01:06:47,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 2.49165120593692) internal successors, (1343), 539 states have internal predecessors, (1343), 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) [2021-04-15 01:06:47,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1343 transitions. [2021-04-15 01:06:47,863 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1343 transitions. Word has length 37 [2021-04-15 01:06:47,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:06:47,864 INFO L480 AbstractCegarLoop]: Abstraction has 540 states and 1343 transitions. [2021-04-15 01:06:47,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-04-15 01:06:47,864 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1343 transitions. [2021-04-15 01:06:47,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-04-15 01:06:47,866 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:06:47,866 INFO L551 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] [2021-04-15 01:06:47,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-15 01:06:47,867 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 01:06:47,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:06:47,874 INFO L82 PathProgramCache]: Analyzing trace with hash -7766020, now seen corresponding path program 1 times [2021-04-15 01:06:47,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:06:47,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047830533] [2021-04-15 01:06:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:06:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:06:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:06:48,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047830533] [2021-04-15 01:06:48,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:06:48,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 01:06:48,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171127924] [2021-04-15 01:06:48,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 01:06:48,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:06:48,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 01:06:48,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-15 01:06:48,023 INFO L87 Difference]: Start difference. First operand 540 states and 1343 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2021-04-15 01:06:48,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:06:48,201 INFO L93 Difference]: Finished difference Result 815 states and 2033 transitions. [2021-04-15 01:06:48,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-15 01:06:48,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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 39 [2021-04-15 01:06:48,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:06:48,204 INFO L225 Difference]: With dead ends: 815 [2021-04-15 01:06:48,205 INFO L226 Difference]: Without dead ends: 540 [2021-04-15 01:06:48,205 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 158.3ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-04-15 01:06:48,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-04-15 01:06:48,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2021-04-15 01:06:48,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 2.4786641929499074) internal successors, (1336), 539 states have internal predecessors, (1336), 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) [2021-04-15 01:06:48,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1336 transitions. [2021-04-15 01:06:48,219 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1336 transitions. Word has length 39 [2021-04-15 01:06:48,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:06:48,219 INFO L480 AbstractCegarLoop]: Abstraction has 540 states and 1336 transitions. [2021-04-15 01:06:48,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2021-04-15 01:06:48,219 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1336 transitions. [2021-04-15 01:06:48,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-04-15 01:06:48,220 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:06:48,220 INFO L551 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] [2021-04-15 01:06:48,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-15 01:06:48,221 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 01:06:48,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:06:48,221 INFO L82 PathProgramCache]: Analyzing trace with hash 2045129818, now seen corresponding path program 2 times [2021-04-15 01:06:48,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:06:48,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425737921] [2021-04-15 01:06:48,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:06:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:06:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:06:48,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425737921] [2021-04-15 01:06:48,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:06:48,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 01:06:48,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811612187] [2021-04-15 01:06:48,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 01:06:48,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:06:48,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 01:06:48,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-15 01:06:48,306 INFO L87 Difference]: Start difference. First operand 540 states and 1336 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2021-04-15 01:06:48,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:06:48,459 INFO L93 Difference]: Finished difference Result 802 states and 1988 transitions. [2021-04-15 01:06:48,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-15 01:06:48,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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 39 [2021-04-15 01:06:48,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:06:48,462 INFO L225 Difference]: With dead ends: 802 [2021-04-15 01:06:48,463 INFO L226 Difference]: Without dead ends: 527 [2021-04-15 01:06:48,463 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 149.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-04-15 01:06:48,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-04-15 01:06:48,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2021-04-15 01:06:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 2.4543726235741445) internal successors, (1291), 526 states have internal predecessors, (1291), 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) [2021-04-15 01:06:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 1291 transitions. [2021-04-15 01:06:48,477 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 1291 transitions. Word has length 39 [2021-04-15 01:06:48,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:06:48,478 INFO L480 AbstractCegarLoop]: Abstraction has 527 states and 1291 transitions. [2021-04-15 01:06:48,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2021-04-15 01:06:48,478 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 1291 transitions. [2021-04-15 01:06:48,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 01:06:48,479 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:06:48,480 INFO L551 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] [2021-04-15 01:06:48,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-15 01:06:48,480 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 01:06:48,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:06:48,481 INFO L82 PathProgramCache]: Analyzing trace with hash -969257764, now seen corresponding path program 1 times [2021-04-15 01:06:48,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:06:48,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495989487] [2021-04-15 01:06:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:06:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:06:48,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:06:48,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495989487] [2021-04-15 01:06:48,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:06:48,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-04-15 01:06:48,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888740997] [2021-04-15 01:06:48,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-15 01:06:48,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:06:48,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-15 01:06:48,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-04-15 01:06:48,617 INFO L87 Difference]: Start difference. First operand 527 states and 1291 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2021-04-15 01:06:48,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:06:48,792 INFO L93 Difference]: Finished difference Result 695 states and 1693 transitions. [2021-04-15 01:06:48,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 01:06:48,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 40 [2021-04-15 01:06:48,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:06:48,794 INFO L225 Difference]: With dead ends: 695 [2021-04-15 01:06:48,794 INFO L226 Difference]: Without dead ends: 385 [2021-04-15 01:06:48,795 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 154.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:06:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-04-15 01:06:48,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2021-04-15 01:06:48,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 2.3932291666666665) internal successors, (919), 384 states have internal predecessors, (919), 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) [2021-04-15 01:06:48,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 919 transitions. [2021-04-15 01:06:48,803 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 919 transitions. Word has length 40 [2021-04-15 01:06:48,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:06:48,803 INFO L480 AbstractCegarLoop]: Abstraction has 385 states and 919 transitions. [2021-04-15 01:06:48,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2021-04-15 01:06:48,803 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 919 transitions. [2021-04-15 01:06:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-15 01:06:48,804 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:06:48,804 INFO L551 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] [2021-04-15 01:06:48,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-15 01:06:48,804 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-15 01:06:48,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:06:48,805 INFO L82 PathProgramCache]: Analyzing trace with hash -150831052, now seen corresponding path program 1 times [2021-04-15 01:06:48,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:06:48,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603261657] [2021-04-15 01:06:48,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:06:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:06:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:06:48,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603261657] [2021-04-15 01:06:48,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:06:48,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-04-15 01:06:48,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840354791] [2021-04-15 01:06:48,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-15 01:06:48,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:06:48,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-15 01:06:48,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-04-15 01:06:48,934 INFO L87 Difference]: Start difference. First operand 385 states and 919 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2021-04-15 01:06:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:06:49,065 INFO L93 Difference]: Finished difference Result 345 states and 817 transitions. [2021-04-15 01:06:49,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-15 01:06:49,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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 40 [2021-04-15 01:06:49,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:06:49,068 INFO L225 Difference]: With dead ends: 345 [2021-04-15 01:06:49,068 INFO L226 Difference]: Without dead ends: 0 [2021-04-15 01:06:49,068 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 150.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:06:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-15 01:06:49,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-15 01:06:49,069 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) [2021-04-15 01:06:49,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-15 01:06:49,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2021-04-15 01:06:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:06:49,069 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-15 01:06:49,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2021-04-15 01:06:49,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-15 01:06:49,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-15 01:06:49,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-15 01:06:49,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 01:06:49 BasicIcfg [2021-04-15 01:06:49,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-15 01:06:49,077 INFO L168 Benchmark]: Toolchain (without parser) took 3227.16 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 233.0 MB in the beginning and 189.5 MB in the end (delta: 43.4 MB). Peak memory consumption was 156.5 MB. Max. memory is 16.0 GB. [2021-04-15 01:06:49,078 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 01:06:49,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.85 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 233.0 MB in the beginning and 333.0 MB in the end (delta: -100.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-04-15 01:06:49,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.42 ms. Allocated memory is still 369.1 MB. Free memory was 332.6 MB in the beginning and 330.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 01:06:49,080 INFO L168 Benchmark]: Boogie Preprocessor took 18.58 ms. Allocated memory is still 369.1 MB. Free memory was 330.9 MB in the beginning and 329.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-15 01:06:49,082 INFO L168 Benchmark]: RCFGBuilder took 420.86 ms. Allocated memory is still 369.1 MB. Free memory was 329.5 MB in the beginning and 349.5 MB in the end (delta: -20.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.0 GB. [2021-04-15 01:06:49,082 INFO L168 Benchmark]: TraceAbstraction took 2311.14 ms. Allocated memory is still 369.1 MB. Free memory was 349.5 MB in the beginning and 189.5 MB in the end (delta: 160.0 MB). Peak memory consumption was 159.8 MB. Max. memory is 16.0 GB. [2021-04-15 01:06:49,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 438.85 ms. Allocated memory was 255.9 MB in the beginning and 369.1 MB in the end (delta: 113.2 MB). Free memory was 233.0 MB in the beginning and 333.0 MB in the end (delta: -100.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.42 ms. Allocated memory is still 369.1 MB. Free memory was 332.6 MB in the beginning and 330.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.58 ms. Allocated memory is still 369.1 MB. Free memory was 330.9 MB in the beginning and 329.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 420.86 ms. Allocated memory is still 369.1 MB. Free memory was 329.5 MB in the beginning and 349.5 MB in the end (delta: -20.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2311.14 ms. Allocated memory is still 369.1 MB. Free memory was 349.5 MB in the beginning and 189.5 MB in the end (delta: 160.0 MB). Peak memory consumption was 159.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2213.3ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 36.4ms, AutomataDifference: 957.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 84.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 430 SDtfs, 631 SDslu, 1535 SDs, 0 SdLazy, 166 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 172.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 837.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1174occurred in iteration=0, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 116.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.1ms SsaConstructionTime, 159.7ms SatisfiabilityAnalysisTime, 665.1ms InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 910 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...