/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/safe025_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:16:16,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:16:16,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:16:16,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:16:16,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:16:16,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:16:16,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:16:16,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 00:16:16,150 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:16:16,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:16:16,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:16:16,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:16:16,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:16:16,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:16:16,151 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:16:16,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:16:16,152 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:16:16,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:16:16,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:16:16,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:16:16,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:16:16,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:16:16,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:16:16,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:16:16,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:16:16,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:16:16,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:16:16,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:16:16,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:16:16,153 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:16:16,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:16:16,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:16:16,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:16:16,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:16:16,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:16:16,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:16:16,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:16:16,154 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:16:16,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:16:16,154 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:16:16,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:16:16,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:16:16,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:16:16,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:16:16,405 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:16:16,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2021-06-05 00:16:16,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/519b91264/add472082da94cf1a49781d2d2bd27fc/FLAGfbd53f4d0 [2021-06-05 00:16:16,878 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:16:16,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.opt.i [2021-06-05 00:16:16,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/519b91264/add472082da94cf1a49781d2d2bd27fc/FLAGfbd53f4d0 [2021-06-05 00:16:17,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/519b91264/add472082da94cf1a49781d2d2bd27fc [2021-06-05 00:16:17,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:16:17,221 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:16:17,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:16:17,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:16:17,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:16:17,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc74178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17, skipping insertion in model container [2021-06-05 00:16:17,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:16:17,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:16:17,399 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/safe025_tso.opt.i[949,962] [2021-06-05 00:16:17,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:16:17,528 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:16:17,540 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/safe025_tso.opt.i[949,962] [2021-06-05 00:16:17,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:16:17,636 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:16:17,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17 WrapperNode [2021-06-05 00:16:17,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:16:17,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:16:17,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:16:17,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:16:17,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:16:17,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:16:17,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:16:17,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:16:17,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (1/1) ... [2021-06-05 00:16:17,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:16:17,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:16:17,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:16:17,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:16:17,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (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 00:16:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:16:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:16:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:16:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:16:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:16:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:16:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:16:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:16:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:16:17,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:16:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:16:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:16:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:16:17,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:16:17,738 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 00:16:18,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:16:18,003 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:16:18,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:16:18 BoogieIcfgContainer [2021-06-05 00:16:18,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:16:18,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:16:18,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:16:18,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:16:18,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:16:17" (1/3) ... [2021-06-05 00:16:18,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7790824e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:16:18, skipping insertion in model container [2021-06-05 00:16:18,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:16:17" (2/3) ... [2021-06-05 00:16:18,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7790824e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:16:18, skipping insertion in model container [2021-06-05 00:16:18,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:16:18" (3/3) ... [2021-06-05 00:16:18,011 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_tso.opt.i [2021-06-05 00:16:18,015 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:16:18,015 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:16:18,015 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:16:18,015 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:16:18,036 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,036 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,037 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,037 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,037 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,037 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,037 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,037 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,038 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,039 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,039 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,039 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,040 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,040 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,040 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,040 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,040 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,040 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,041 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,041 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,043 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,043 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,047 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,047 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,047 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,049 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:16:18,050 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:16:18,065 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 00:16:18,082 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:16:18,083 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:16:18,083 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:16:18,083 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:16:18,083 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:16:18,083 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:16:18,083 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:16:18,083 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:16:18,090 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 00:16:18,509 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:18,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:18,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 00:16:18,580 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:18,581 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] [2021-06-05 00:16:18,581 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:18,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:18,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1943773822, now seen corresponding path program 1 times [2021-06-05 00:16:18,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:18,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131887385] [2021-06-05 00:16:18,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:18,854 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 00:16:18,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:18,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131887385] [2021-06-05 00:16:18,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131887385] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:18,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:18,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:16:18,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008143730] [2021-06-05 00:16:18,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:16:18,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:18,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:16:18,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:16:18,888 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:19,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:19,183 INFO L93 Difference]: Finished difference Result 12223 states and 42407 transitions. [2021-06-05 00:16:19,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:16:19,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 00:16:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:19,224 INFO L225 Difference]: With dead ends: 12223 [2021-06-05 00:16:19,225 INFO L226 Difference]: Without dead ends: 4628 [2021-06-05 00:16:19,226 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 111.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:16:19,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4628 states. [2021-06-05 00:16:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4628 to 4628. [2021-06-05 00:16:19,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4628 states, 4627 states have (on average 3.38599524529933) internal successors, (15667), 4627 states have internal predecessors, (15667), 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 00:16:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 15667 transitions. [2021-06-05 00:16:19,413 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 15667 transitions. Word has length 49 [2021-06-05 00:16:19,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:19,416 INFO L482 AbstractCegarLoop]: Abstraction has 4628 states and 15667 transitions. [2021-06-05 00:16:19,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:19,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 15667 transitions. [2021-06-05 00:16:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 00:16:19,428 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:19,428 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] [2021-06-05 00:16:19,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:16:19,429 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:19,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:19,431 INFO L82 PathProgramCache]: Analyzing trace with hash -303430371, now seen corresponding path program 1 times [2021-06-05 00:16:19,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:19,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368360287] [2021-06-05 00:16:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:19,611 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 00:16:19,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:19,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368360287] [2021-06-05 00:16:19,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368360287] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:19,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:19,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:19,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997226266] [2021-06-05 00:16:19,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:19,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:19,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:19,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:19,614 INFO L87 Difference]: Start difference. First operand 4628 states and 15667 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:19,874 INFO L93 Difference]: Finished difference Result 7508 states and 24942 transitions. [2021-06-05 00:16:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:16:19,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 00:16:19,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:19,899 INFO L225 Difference]: With dead ends: 7508 [2021-06-05 00:16:19,900 INFO L226 Difference]: Without dead ends: 5584 [2021-06-05 00:16:19,901 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 150.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:16:19,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5584 states. [2021-06-05 00:16:20,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5584 to 4616. [2021-06-05 00:16:20,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4616 states, 4615 states have (on average 3.342145178764897) internal successors, (15424), 4615 states have internal predecessors, (15424), 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 00:16:20,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 15424 transitions. [2021-06-05 00:16:20,059 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 15424 transitions. Word has length 51 [2021-06-05 00:16:20,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:20,060 INFO L482 AbstractCegarLoop]: Abstraction has 4616 states and 15424 transitions. [2021-06-05 00:16:20,060 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:20,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 15424 transitions. [2021-06-05 00:16:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 00:16:20,068 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:20,068 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] [2021-06-05 00:16:20,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:16:20,069 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:20,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:20,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1505957406, now seen corresponding path program 1 times [2021-06-05 00:16:20,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:20,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268173525] [2021-06-05 00:16:20,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:20,185 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 00:16:20,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:20,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268173525] [2021-06-05 00:16:20,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268173525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:20,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:20,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:20,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506903506] [2021-06-05 00:16:20,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:20,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:20,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:20,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:20,188 INFO L87 Difference]: Start difference. First operand 4616 states and 15424 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:20,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:20,419 INFO L93 Difference]: Finished difference Result 7298 states and 24180 transitions. [2021-06-05 00:16:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 00:16:20,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 00:16:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:20,452 INFO L225 Difference]: With dead ends: 7298 [2021-06-05 00:16:20,452 INFO L226 Difference]: Without dead ends: 4350 [2021-06-05 00:16:20,452 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 170.7ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:16:20,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4350 states. [2021-06-05 00:16:20,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4350 to 4126. [2021-06-05 00:16:20,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 4125 states have (on average 3.2996363636363637) internal successors, (13611), 4125 states have internal predecessors, (13611), 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 00:16:20,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 13611 transitions. [2021-06-05 00:16:20,604 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 13611 transitions. Word has length 53 [2021-06-05 00:16:20,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:20,604 INFO L482 AbstractCegarLoop]: Abstraction has 4126 states and 13611 transitions. [2021-06-05 00:16:20,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:20,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 13611 transitions. [2021-06-05 00:16:20,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 00:16:20,612 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:20,612 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 00:16:20,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:16:20,612 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:20,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:20,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1566342532, now seen corresponding path program 1 times [2021-06-05 00:16:20,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:20,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427464152] [2021-06-05 00:16:20,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:20,781 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 00:16:20,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:20,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427464152] [2021-06-05 00:16:20,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427464152] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:20,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:20,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:16:20,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210748984] [2021-06-05 00:16:20,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:16:20,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:20,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:16:20,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:16:20,790 INFO L87 Difference]: Start difference. First operand 4126 states and 13611 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 00:16:20,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:20,890 INFO L93 Difference]: Finished difference Result 5189 states and 16882 transitions. [2021-06-05 00:16:20,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:16:20,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 00:16:20,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:20,900 INFO L225 Difference]: With dead ends: 5189 [2021-06-05 00:16:20,900 INFO L226 Difference]: Without dead ends: 3753 [2021-06-05 00:16:20,901 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 74.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:16:20,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2021-06-05 00:16:20,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2021-06-05 00:16:20,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 3752 states have (on average 3.236673773987207) internal successors, (12144), 3752 states have internal predecessors, (12144), 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 00:16:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 12144 transitions. [2021-06-05 00:16:20,981 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 12144 transitions. Word has length 54 [2021-06-05 00:16:20,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:20,982 INFO L482 AbstractCegarLoop]: Abstraction has 3753 states and 12144 transitions. [2021-06-05 00:16:20,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 00:16:20,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 12144 transitions. [2021-06-05 00:16:20,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 00:16:20,990 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:20,991 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] [2021-06-05 00:16:20,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:16:20,993 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:20,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:20,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1073595617, now seen corresponding path program 1 times [2021-06-05 00:16:20,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:20,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826543182] [2021-06-05 00:16:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:21,077 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 00:16:21,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:21,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826543182] [2021-06-05 00:16:21,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826543182] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:21,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:21,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:21,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236557664] [2021-06-05 00:16:21,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:21,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:21,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:21,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:21,078 INFO L87 Difference]: Start difference. First operand 3753 states and 12144 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:16:21,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:21,234 INFO L93 Difference]: Finished difference Result 3927 states and 12383 transitions. [2021-06-05 00:16:21,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:16:21,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2021-06-05 00:16:21,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:21,241 INFO L225 Difference]: With dead ends: 3927 [2021-06-05 00:16:21,241 INFO L226 Difference]: Without dead ends: 2751 [2021-06-05 00:16:21,242 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 86.3ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:16:21,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2021-06-05 00:16:21,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2751. [2021-06-05 00:16:21,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 2750 states have (on average 3.096363636363636) internal successors, (8515), 2750 states have internal predecessors, (8515), 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 00:16:21,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 8515 transitions. [2021-06-05 00:16:21,304 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 8515 transitions. Word has length 55 [2021-06-05 00:16:21,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:21,304 INFO L482 AbstractCegarLoop]: Abstraction has 2751 states and 8515 transitions. [2021-06-05 00:16:21,305 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:16:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 8515 transitions. [2021-06-05 00:16:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 00:16:21,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:21,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:16:21,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:16:21,310 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:21,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:21,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1221177026, now seen corresponding path program 1 times [2021-06-05 00:16:21,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:21,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105358210] [2021-06-05 00:16:21,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:21,431 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 00:16:21,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:21,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105358210] [2021-06-05 00:16:21,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105358210] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:21,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:21,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:16:21,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95690360] [2021-06-05 00:16:21,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:16:21,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:21,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:16:21,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:16:21,433 INFO L87 Difference]: Start difference. First operand 2751 states and 8515 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:21,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:21,548 INFO L93 Difference]: Finished difference Result 2364 states and 7171 transitions. [2021-06-05 00:16:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:16:21,548 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 00:16:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:21,552 INFO L225 Difference]: With dead ends: 2364 [2021-06-05 00:16:21,552 INFO L226 Difference]: Without dead ends: 1644 [2021-06-05 00:16:21,552 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 90.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:16:21,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2021-06-05 00:16:21,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1596. [2021-06-05 00:16:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1595 states have (on average 2.9579937304075234) internal successors, (4718), 1595 states have internal predecessors, (4718), 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 00:16:21,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 4718 transitions. [2021-06-05 00:16:21,582 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 4718 transitions. Word has length 57 [2021-06-05 00:16:21,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:21,582 INFO L482 AbstractCegarLoop]: Abstraction has 1596 states and 4718 transitions. [2021-06-05 00:16:21,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:21,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 4718 transitions. [2021-06-05 00:16:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 00:16:21,609 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:21,609 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:16:21,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:16:21,610 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:21,610 INFO L82 PathProgramCache]: Analyzing trace with hash 491831026, now seen corresponding path program 1 times [2021-06-05 00:16:21,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:21,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384581439] [2021-06-05 00:16:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:21,681 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 00:16:21,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:21,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384581439] [2021-06-05 00:16:21,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384581439] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:21,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:21,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:16:21,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240522585] [2021-06-05 00:16:21,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:16:21,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:21,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:16:21,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:16:21,682 INFO L87 Difference]: Start difference. First operand 1596 states and 4718 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:21,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:21,770 INFO L93 Difference]: Finished difference Result 2371 states and 6994 transitions. [2021-06-05 00:16:21,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:16:21,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 00:16:21,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:21,773 INFO L225 Difference]: With dead ends: 2371 [2021-06-05 00:16:21,773 INFO L226 Difference]: Without dead ends: 1141 [2021-06-05 00:16:21,774 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:16:21,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2021-06-05 00:16:21,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1057. [2021-06-05 00:16:21,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 2.877840909090909) internal successors, (3039), 1056 states have internal predecessors, (3039), 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 00:16:21,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 3039 transitions. [2021-06-05 00:16:21,790 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 3039 transitions. Word has length 61 [2021-06-05 00:16:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:21,791 INFO L482 AbstractCegarLoop]: Abstraction has 1057 states and 3039 transitions. [2021-06-05 00:16:21,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:21,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 3039 transitions. [2021-06-05 00:16:21,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 00:16:21,792 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:21,793 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:16:21,793 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:16:21,793 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:21,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:21,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1188267042, now seen corresponding path program 2 times [2021-06-05 00:16:21,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:21,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540835982] [2021-06-05 00:16:21,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:21,890 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 00:16:21,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:21,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540835982] [2021-06-05 00:16:21,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540835982] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:21,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:21,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:16:21,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055684835] [2021-06-05 00:16:21,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:16:21,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:21,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:16:21,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:16:21,894 INFO L87 Difference]: Start difference. First operand 1057 states and 3039 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:21,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:21,954 INFO L93 Difference]: Finished difference Result 1672 states and 4895 transitions. [2021-06-05 00:16:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:16:21,955 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 00:16:21,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:21,957 INFO L225 Difference]: With dead ends: 1672 [2021-06-05 00:16:21,957 INFO L226 Difference]: Without dead ends: 1132 [2021-06-05 00:16:21,957 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 63.4ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:16:21,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-06-05 00:16:21,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1012. [2021-06-05 00:16:21,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1011 states have (on average 2.851632047477745) internal successors, (2883), 1011 states have internal predecessors, (2883), 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 00:16:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 2883 transitions. [2021-06-05 00:16:21,973 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 2883 transitions. Word has length 61 [2021-06-05 00:16:21,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:21,973 INFO L482 AbstractCegarLoop]: Abstraction has 1012 states and 2883 transitions. [2021-06-05 00:16:21,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:21,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 2883 transitions. [2021-06-05 00:16:21,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 00:16:21,975 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:16:21,975 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:16:21,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:16:21,975 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:16:21,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:16:21,975 INFO L82 PathProgramCache]: Analyzing trace with hash 78142742, now seen corresponding path program 3 times [2021-06-05 00:16:21,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:16:21,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200374255] [2021-06-05 00:16:21,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:16:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:16:22,049 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 00:16:22,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:16:22,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200374255] [2021-06-05 00:16:22,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200374255] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:16:22,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:16:22,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:16:22,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347000573] [2021-06-05 00:16:22,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:16:22,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:16:22,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:16:22,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:16:22,052 INFO L87 Difference]: Start difference. First operand 1012 states and 2883 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:22,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:16:22,098 INFO L93 Difference]: Finished difference Result 958 states and 2721 transitions. [2021-06-05 00:16:22,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 00:16:22,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 00:16:22,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:16:22,099 INFO L225 Difference]: With dead ends: 958 [2021-06-05 00:16:22,099 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:16:22,099 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.2ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:16:22,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:16:22,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:16:22,100 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 00:16:22,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:16:22,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-06-05 00:16:22,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:16:22,100 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:16:22,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:16:22,100 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:16:22,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:16:22,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:16:22,102 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:16:22,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:16:22 BasicIcfg [2021-06-05 00:16:22,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:16:22,104 INFO L168 Benchmark]: Toolchain (without parser) took 4883.14 ms. Allocated memory was 379.6 MB in the beginning and 1.1 GB in the end (delta: 748.7 MB). Free memory was 341.3 MB in the beginning and 877.7 MB in the end (delta: -536.4 MB). Peak memory consumption was 212.8 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:22,104 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 379.6 MB. Free memory is still 359.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:16:22,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.08 ms. Allocated memory is still 379.6 MB. Free memory was 341.2 MB in the beginning and 340.3 MB in the end (delta: 952.0 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:22,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.66 ms. Allocated memory is still 379.6 MB. Free memory was 340.3 MB in the beginning and 338.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:22,105 INFO L168 Benchmark]: Boogie Preprocessor took 14.61 ms. Allocated memory is still 379.6 MB. Free memory was 338.2 MB in the beginning and 337.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:16:22,106 INFO L168 Benchmark]: RCFGBuilder took 326.66 ms. Allocated memory is still 379.6 MB. Free memory was 337.1 MB in the beginning and 309.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:22,106 INFO L168 Benchmark]: TraceAbstraction took 4097.32 ms. Allocated memory was 379.6 MB in the beginning and 1.1 GB in the end (delta: 748.7 MB). Free memory was 308.8 MB in the beginning and 877.7 MB in the end (delta: -568.9 MB). Peak memory consumption was 180.8 MB. Max. memory is 16.0 GB. [2021-06-05 00:16:22,111 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 379.6 MB. Free memory is still 359.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 412.08 ms. Allocated memory is still 379.6 MB. Free memory was 341.2 MB in the beginning and 340.3 MB in the end (delta: 952.0 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.66 ms. Allocated memory is still 379.6 MB. Free memory was 340.3 MB in the beginning and 338.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.61 ms. Allocated memory is still 379.6 MB. Free memory was 338.2 MB in the beginning and 337.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 326.66 ms. Allocated memory is still 379.6 MB. Free memory was 337.1 MB in the beginning and 309.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4097.32 ms. Allocated memory was 379.6 MB in the beginning and 1.1 GB in the end (delta: 748.7 MB). Free memory was 308.8 MB in the beginning and 877.7 MB in the end (delta: -568.9 MB). Peak memory consumption was 180.8 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4020.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 139.4ms, AutomataDifference: 1523.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 426.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 952 SDtfs, 1523 SDslu, 3354 SDs, 0 SdLazy, 407 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 250.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 881.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 683.0ms AutomataMinimizationTime, 9 MinimizatonAttempts, 1444 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.7ms SsaConstructionTime, 178.9ms SatisfiabilityAnalysisTime, 872.2ms InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 493 ConstructedInterpolants, 0 QuantifiedInterpolants, 1673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...