/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:12:13,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:12:13,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:12:14,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:12:14,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:12:14,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:12:14,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:12:14,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:12:14,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:12:14,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:12:14,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:12:14,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:12:14,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:12:14,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:12:14,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:12:14,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:12:14,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:12:14,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:12:14,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:12:14,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:12:14,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:12:14,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:12:14,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:12:14,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:12:14,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 10:12:14,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 10:12:14,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 10:12:14,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 10:12:14,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 10:12:14,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 10:12:14,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 10:12:14,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 10:12:14,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 10:12:14,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 10:12:14,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 10:12:14,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 10:12:14,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 10:12:14,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 10:12:14,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:12:14,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:12:14,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:12:14,070 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-Separate.epf [2021-06-05 10:12:14,109 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:12:14,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:12:14,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:12:14,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:12:14,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:12:14,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:12:14,113 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:12:14,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:12:14,113 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:12:14,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:12:14,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:12:14,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:12:14,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:12:14,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:12:14,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:12:14,115 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:12:14,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:12:14,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:12:14,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:12:14,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:12:14,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:12:14,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:12:14,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:12:14,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:12:14,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:12:14,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:12:14,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:12:14,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:12:14,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:12:14,117 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:12:14,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:12:14,117 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:12:14,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:12:14,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:12:14,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:12:14,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:12:14,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:12:14,442 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:12:14,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2021-06-05 10:12:14,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2b16d64/8613652bb1674cc78a6942bfef2f0eda/FLAG7bb19c521 [2021-06-05 10:12:15,053 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:12:15,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2021-06-05 10:12:15,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2b16d64/8613652bb1674cc78a6942bfef2f0eda/FLAG7bb19c521 [2021-06-05 10:12:15,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2b16d64/8613652bb1674cc78a6942bfef2f0eda [2021-06-05 10:12:15,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:12:15,491 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:12:15,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:12:15,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:12:15,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:12:15,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:12:15" (1/1) ... [2021-06-05 10:12:15,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc1cf25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:15, skipping insertion in model container [2021-06-05 10:12:15,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:12:15" (1/1) ... [2021-06-05 10:12:15,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:12:15,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:12:15,723 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/safe031_tso.oepc.i[950,963] [2021-06-05 10:12:15,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:12:15,925 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:12:15,937 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/safe031_tso.oepc.i[950,963] [2021-06-05 10:12:15,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:12:16,050 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:12:16,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16 WrapperNode [2021-06-05 10:12:16,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:12:16,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:12:16,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:12:16,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:12:16,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... [2021-06-05 10:12:16,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... [2021-06-05 10:12:16,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:12:16,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:12:16,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:12:16,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:12:16,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... [2021-06-05 10:12:16,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... [2021-06-05 10:12:16,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... [2021-06-05 10:12:16,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... [2021-06-05 10:12:16,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... [2021-06-05 10:12:16,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... [2021-06-05 10:12:16,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... [2021-06-05 10:12:16,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:12:16,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:12:16,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:12:16,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:12:16,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:12:16,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:12:16,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:12:16,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:12:16,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:12:16,237 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:12:16,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:12:16,237 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:12:16,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:12:16,237 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:12:16,237 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:12:16,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:12:16,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:12:16,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:12:16,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:12:16,239 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:12:16,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:12:16,633 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:12:16,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:12:16 BoogieIcfgContainer [2021-06-05 10:12:16,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:12:16,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:12:16,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:12:16,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:12:16,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:12:15" (1/3) ... [2021-06-05 10:12:16,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d96d6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:12:16, skipping insertion in model container [2021-06-05 10:12:16,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:12:16" (2/3) ... [2021-06-05 10:12:16,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d96d6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:12:16, skipping insertion in model container [2021-06-05 10:12:16,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:12:16" (3/3) ... [2021-06-05 10:12:16,641 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2021-06-05 10:12:16,646 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:12:16,646 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:12:16,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:12:16,647 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:12:16,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,680 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,680 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,681 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,681 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,681 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,683 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,684 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,690 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,690 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,693 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,697 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,697 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,702 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,702 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,702 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,702 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,704 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,704 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,704 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:12:16,707 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:12:16,729 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:12:16,745 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:12:16,746 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:12:16,746 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:12:16,746 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:12:16,746 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:12:16,746 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:12:16,746 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:12:16,746 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:12:16,756 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-06-05 10:12:17,275 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:17,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 10:12:17,354 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:12:17,355 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:12:17,355 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:12:17,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:12:17,363 INFO L82 PathProgramCache]: Analyzing trace with hash 2019691919, now seen corresponding path program 1 times [2021-06-05 10:12:17,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:12:17,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121719626] [2021-06-05 10:12:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:12:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:12:17,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:12:17,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:12:17,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121719626] [2021-06-05 10:12:17,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121719626] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:12:17,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:12:17,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:12:17,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243296286] [2021-06-05 10:12:17,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:12:17,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:12:17,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:12:17,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:12:17,870 INFO L87 Difference]: Start difference. First operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 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 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:18,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:12:18,319 INFO L93 Difference]: Finished difference Result 21594 states and 74453 transitions. [2021-06-05 10:12:18,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:12:18,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2021-06-05 10:12:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:12:18,434 INFO L225 Difference]: With dead ends: 21594 [2021-06-05 10:12:18,435 INFO L226 Difference]: Without dead ends: 7075 [2021-06-05 10:12:18,436 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:12:18,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7075 states. [2021-06-05 10:12:18,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7075 to 5827. [2021-06-05 10:12:18,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5827 states, 5826 states have (on average 3.3201167181599724) internal successors, (19343), 5826 states have internal predecessors, (19343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5827 states to 5827 states and 19343 transitions. [2021-06-05 10:12:18,789 INFO L78 Accepts]: Start accepts. Automaton has 5827 states and 19343 transitions. Word has length 48 [2021-06-05 10:12:18,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:12:18,790 INFO L482 AbstractCegarLoop]: Abstraction has 5827 states and 19343 transitions. [2021-06-05 10:12:18,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5827 states and 19343 transitions. [2021-06-05 10:12:18,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-05 10:12:18,803 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:12:18,803 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:12:18,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:12:18,804 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:12:18,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:12:18,805 INFO L82 PathProgramCache]: Analyzing trace with hash 686279184, now seen corresponding path program 1 times [2021-06-05 10:12:18,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:12:18,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630975668] [2021-06-05 10:12:18,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:12:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:12:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:12:19,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:12:19,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630975668] [2021-06-05 10:12:19,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630975668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:12:19,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:12:19,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:12:19,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22312405] [2021-06-05 10:12:19,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:12:19,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:12:19,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:12:19,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:12:19,059 INFO L87 Difference]: Start difference. First operand 5827 states and 19343 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2021-06-05 10:12:19,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:12:19,348 INFO L93 Difference]: Finished difference Result 8291 states and 27260 transitions. [2021-06-05 10:12:19,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:12:19,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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 [2021-06-05 10:12:19,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:12:19,401 INFO L225 Difference]: With dead ends: 8291 [2021-06-05 10:12:19,401 INFO L226 Difference]: Without dead ends: 6655 [2021-06-05 10:12:19,402 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 237.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:12:19,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6655 states. [2021-06-05 10:12:19,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6655 to 5647. [2021-06-05 10:12:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5647 states, 5646 states have (on average 3.3048175699610343) internal successors, (18659), 5646 states have internal predecessors, (18659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5647 states to 5647 states and 18659 transitions. [2021-06-05 10:12:19,643 INFO L78 Accepts]: Start accepts. Automaton has 5647 states and 18659 transitions. Word has length 50 [2021-06-05 10:12:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:12:19,644 INFO L482 AbstractCegarLoop]: Abstraction has 5647 states and 18659 transitions. [2021-06-05 10:12:19,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2021-06-05 10:12:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5647 states and 18659 transitions. [2021-06-05 10:12:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-05 10:12:19,657 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:12:19,658 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:12:19,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:12:19,658 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:12:19,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:12:19,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1441415890, now seen corresponding path program 1 times [2021-06-05 10:12:19,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:12:19,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525323936] [2021-06-05 10:12:19,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:12:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:12:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:12:19,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:12:19,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525323936] [2021-06-05 10:12:19,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525323936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:12:19,755 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:12:19,755 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:12:19,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193492387] [2021-06-05 10:12:19,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:12:19,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:12:19,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:12:19,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:12:19,757 INFO L87 Difference]: Start difference. First operand 5647 states and 18659 transitions. 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) [2021-06-05 10:12:19,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:12:19,896 INFO L93 Difference]: Finished difference Result 6207 states and 20392 transitions. [2021-06-05 10:12:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:12:19,898 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 [2021-06-05 10:12:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:12:19,933 INFO L225 Difference]: With dead ends: 6207 [2021-06-05 10:12:19,933 INFO L226 Difference]: Without dead ends: 5227 [2021-06-05 10:12:19,934 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 100.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:12:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5227 states. [2021-06-05 10:12:20,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5227 to 5163. [2021-06-05 10:12:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 3.283029833397908) internal successors, (16947), 5162 states have internal predecessors, (16947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 16947 transitions. [2021-06-05 10:12:20,149 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 16947 transitions. Word has length 50 [2021-06-05 10:12:20,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:12:20,152 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 16947 transitions. [2021-06-05 10:12:20,152 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) [2021-06-05 10:12:20,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 16947 transitions. [2021-06-05 10:12:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 10:12:20,163 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:12:20,163 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:12:20,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:12:20,164 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:12:20,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:12:20,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1344167279, now seen corresponding path program 1 times [2021-06-05 10:12:20,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:12:20,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906657615] [2021-06-05 10:12:20,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:12:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:12:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:12:20,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:12:20,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906657615] [2021-06-05 10:12:20,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906657615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:12:20,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:12:20,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:12:20,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746960391] [2021-06-05 10:12:20,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:12:20,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:12:20,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:12:20,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:12:20,307 INFO L87 Difference]: Start difference. First operand 5163 states and 16947 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:20,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:12:20,507 INFO L93 Difference]: Finished difference Result 6338 states and 20435 transitions. [2021-06-05 10:12:20,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:12:20,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-06-05 10:12:20,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:12:20,525 INFO L225 Difference]: With dead ends: 6338 [2021-06-05 10:12:20,525 INFO L226 Difference]: Without dead ends: 4678 [2021-06-05 10:12:20,525 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 145.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:12:20,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2021-06-05 10:12:20,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 4678. [2021-06-05 10:12:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4678 states, 4677 states have (on average 3.215095146461407) internal successors, (15037), 4677 states have internal predecessors, (15037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4678 states to 4678 states and 15037 transitions. [2021-06-05 10:12:20,684 INFO L78 Accepts]: Start accepts. Automaton has 4678 states and 15037 transitions. Word has length 52 [2021-06-05 10:12:20,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:12:20,685 INFO L482 AbstractCegarLoop]: Abstraction has 4678 states and 15037 transitions. [2021-06-05 10:12:20,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:20,685 INFO L276 IsEmpty]: Start isEmpty. Operand 4678 states and 15037 transitions. [2021-06-05 10:12:20,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:12:20,696 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:12:20,696 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:12:20,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:12:20,700 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:12:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:12:20,701 INFO L82 PathProgramCache]: Analyzing trace with hash -613291728, now seen corresponding path program 1 times [2021-06-05 10:12:20,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:12:20,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45054711] [2021-06-05 10:12:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:12:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:12:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:12:20,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:12:20,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45054711] [2021-06-05 10:12:20,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45054711] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:12:20,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:12:20,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:12:20,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282417200] [2021-06-05 10:12:20,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:12:20,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:12:20,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:12:20,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:12:20,852 INFO L87 Difference]: Start difference. First operand 4678 states and 15037 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:12:21,016 INFO L93 Difference]: Finished difference Result 4678 states and 14575 transitions. [2021-06-05 10:12:21,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:12:21,017 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:12:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:12:21,029 INFO L225 Difference]: With dead ends: 4678 [2021-06-05 10:12:21,029 INFO L226 Difference]: Without dead ends: 3274 [2021-06-05 10:12:21,029 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 130.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:12:21,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2021-06-05 10:12:21,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3174. [2021-06-05 10:12:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3174 states, 3173 states have (on average 3.05641348881185) internal successors, (9698), 3173 states have internal predecessors, (9698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 9698 transitions. [2021-06-05 10:12:21,169 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 9698 transitions. Word has length 54 [2021-06-05 10:12:21,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:12:21,169 INFO L482 AbstractCegarLoop]: Abstraction has 3174 states and 9698 transitions. [2021-06-05 10:12:21,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 9698 transitions. [2021-06-05 10:12:21,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:12:21,176 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:12:21,176 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:12:21,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:12:21,177 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:12:21,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:12:21,177 INFO L82 PathProgramCache]: Analyzing trace with hash -2023776045, now seen corresponding path program 1 times [2021-06-05 10:12:21,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:12:21,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378927897] [2021-06-05 10:12:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:12:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:12:21,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:12:21,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:12:21,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378927897] [2021-06-05 10:12:21,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378927897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:12:21,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:12:21,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:12:21,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333030132] [2021-06-05 10:12:21,302 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:12:21,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:12:21,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:12:21,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:12:21,303 INFO L87 Difference]: Start difference. First operand 3174 states and 9698 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:12:21,477 INFO L93 Difference]: Finished difference Result 3824 states and 11529 transitions. [2021-06-05 10:12:21,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:12:21,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 10:12:21,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:12:21,486 INFO L225 Difference]: With dead ends: 3824 [2021-06-05 10:12:21,486 INFO L226 Difference]: Without dead ends: 2636 [2021-06-05 10:12:21,487 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:12:21,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2021-06-05 10:12:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2186. [2021-06-05 10:12:21,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 2185 states have (on average 2.948741418764302) internal successors, (6443), 2185 states have internal predecessors, (6443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 6443 transitions. [2021-06-05 10:12:21,536 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 6443 transitions. Word has length 56 [2021-06-05 10:12:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:12:21,537 INFO L482 AbstractCegarLoop]: Abstraction has 2186 states and 6443 transitions. [2021-06-05 10:12:21,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 6443 transitions. [2021-06-05 10:12:21,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:12:21,541 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:12:21,541 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:12:21,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:12:21,542 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:12:21,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:12:21,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1599141549, now seen corresponding path program 1 times [2021-06-05 10:12:21,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:12:21,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131449419] [2021-06-05 10:12:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:12:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:12:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:12:21,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:12:21,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131449419] [2021-06-05 10:12:21,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131449419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:12:21,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:12:21,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:12:21,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263343265] [2021-06-05 10:12:21,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:12:21,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:12:21,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:12:21,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:12:21,617 INFO L87 Difference]: Start difference. First operand 2186 states and 6443 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:12:21,686 INFO L93 Difference]: Finished difference Result 2903 states and 8553 transitions. [2021-06-05 10:12:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 10:12:21,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 10:12:21,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:12:21,693 INFO L225 Difference]: With dead ends: 2903 [2021-06-05 10:12:21,693 INFO L226 Difference]: Without dead ends: 2342 [2021-06-05 10:12:21,693 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:12:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2021-06-05 10:12:21,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 2180. [2021-06-05 10:12:21,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2179 states have (on average 2.945387792565397) internal successors, (6418), 2179 states have internal predecessors, (6418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 6418 transitions. [2021-06-05 10:12:21,781 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 6418 transitions. Word has length 56 [2021-06-05 10:12:21,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:12:21,781 INFO L482 AbstractCegarLoop]: Abstraction has 2180 states and 6418 transitions. [2021-06-05 10:12:21,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 6418 transitions. [2021-06-05 10:12:21,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:12:21,785 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:12:21,785 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:12:21,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:12:21,785 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:12:21,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:12:21,786 INFO L82 PathProgramCache]: Analyzing trace with hash -197508683, now seen corresponding path program 2 times [2021-06-05 10:12:21,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:12:21,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506840569] [2021-06-05 10:12:21,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:12:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:12:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:12:21,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:12:21,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506840569] [2021-06-05 10:12:21,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506840569] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:12:21,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:12:21,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:12:21,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866872204] [2021-06-05 10:12:21,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:12:21,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:12:21,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:12:21,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:12:21,869 INFO L87 Difference]: Start difference. First operand 2180 states and 6418 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:12:21,951 INFO L93 Difference]: Finished difference Result 1505 states and 4303 transitions. [2021-06-05 10:12:21,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:12:21,951 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 10:12:21,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:12:21,952 INFO L225 Difference]: With dead ends: 1505 [2021-06-05 10:12:21,952 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:12:21,952 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 89.0ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:12:21,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:12:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:12:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:12:21,953 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2021-06-05 10:12:21,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:12:21,953 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:12:21,953 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:12:21,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:12:21,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:12:21,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:12:21,955 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:12:21,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:12:21 BasicIcfg [2021-06-05 10:12:21,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:12:21,958 INFO L168 Benchmark]: Toolchain (without parser) took 6466.63 ms. Allocated memory was 354.4 MB in the beginning and 1.3 GB in the end (delta: 994.1 MB). Free memory was 317.5 MB in the beginning and 1.1 GB in the end (delta: -803.8 MB). Peak memory consumption was 192.4 MB. Max. memory is 16.0 GB. [2021-06-05 10:12:21,958 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory was 335.7 MB in the beginning and 335.6 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:12:21,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.96 ms. Allocated memory is still 354.4 MB. Free memory was 317.3 MB in the beginning and 317.6 MB in the end (delta: -315.0 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:12:21,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.89 ms. Allocated memory is still 354.4 MB. Free memory was 316.7 MB in the beginning and 315.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:12:21,959 INFO L168 Benchmark]: Boogie Preprocessor took 33.03 ms. Allocated memory is still 354.4 MB. Free memory was 315.5 MB in the beginning and 313.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:12:21,959 INFO L168 Benchmark]: RCFGBuilder took 489.34 ms. Allocated memory is still 354.4 MB. Free memory was 313.6 MB in the beginning and 289.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:12:21,960 INFO L168 Benchmark]: TraceAbstraction took 5321.18 ms. Allocated memory was 354.4 MB in the beginning and 1.3 GB in the end (delta: 994.1 MB). Free memory was 289.4 MB in the beginning and 1.1 GB in the end (delta: -831.9 MB). Peak memory consumption was 163.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:12:21,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory was 335.7 MB in the beginning and 335.6 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 557.96 ms. Allocated memory is still 354.4 MB. Free memory was 317.3 MB in the beginning and 317.6 MB in the end (delta: -315.0 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 58.89 ms. Allocated memory is still 354.4 MB. Free memory was 316.7 MB in the beginning and 315.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.03 ms. Allocated memory is still 354.4 MB. Free memory was 315.5 MB in the beginning and 313.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 489.34 ms. Allocated memory is still 354.4 MB. Free memory was 313.6 MB in the beginning and 289.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5321.18 ms. Allocated memory was 354.4 MB in the beginning and 1.3 GB in the end (delta: 994.1 MB). Free memory was 289.4 MB in the beginning and 1.1 GB in the end (delta: -831.9 MB). Peak memory consumption was 163.1 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5210.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 140.0ms, AutomataDifference: 1883.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 528.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 881 SDtfs, 1247 SDslu, 2809 SDs, 0 SdLazy, 306 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 264.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1058.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1230.5ms AutomataMinimizationTime, 8 MinimizatonAttempts, 3032 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.1ms SsaConstructionTime, 254.8ms SatisfiabilityAnalysisTime, 921.9ms InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 414 ConstructedInterpolants, 0 QuantifiedInterpolants, 1784 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...