/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-344d29da17dfcedfb91d6006a5dbd12b556a868d-344d29d [2021-02-16 17:21:09,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-16 17:21:09,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-16 17:21:09,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-16 17:21:09,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-16 17:21:09,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-16 17:21:09,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-16 17:21:09,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-16 17:21:09,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-16 17:21:09,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-16 17:21:09,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-16 17:21:09,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-16 17:21:09,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-16 17:21:09,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-16 17:21:09,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-16 17:21:09,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-16 17:21:09,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-16 17:21:09,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-16 17:21:09,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-16 17:21:09,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-16 17:21:09,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-16 17:21:09,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-16 17:21:09,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-16 17:21:09,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-16 17:21:09,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-16 17:21:09,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-16 17:21:09,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-16 17:21:09,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-16 17:21:09,903 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 [2021-02-16 17:21:09,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-16 17:21:09,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-16 17:21:09,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-16 17:21:09,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-16 17:21:09,933 INFO L138 SettingsManager]: * Use SBE=true [2021-02-16 17:21:09,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-16 17:21:09,933 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-16 17:21:09,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-16 17:21:09,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-16 17:21:09,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-16 17:21:09,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-16 17:21:09,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-16 17:21:09,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-16 17:21:09,935 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-16 17:21:09,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-16 17:21:09,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-16 17:21:09,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-16 17:21:09,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-16 17:21:09,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-16 17:21:09,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-16 17:21:09,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-16 17:21:09,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-16 17:21:09,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-16 17:21:09,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-16 17:21:09,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-16 17:21:09,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-16 17:21:09,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-16 17:21:09,938 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-16 17:21:09,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-16 17:21:09,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-16 17:21:10,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-16 17:21:10,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-16 17:21:10,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-16 17:21:10,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-16 17:21:10,448 INFO L275 PluginConnector]: CDTParser initialized [2021-02-16 17:21:10,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-02-16 17:21:10,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5596538/a609c4276c0e45a8a5b1af3e2f4c1c27/FLAGe9b4ccf38 [2021-02-16 17:21:11,311 INFO L306 CDTParser]: Found 1 translation units. [2021-02-16 17:21:11,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-02-16 17:21:11,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5596538/a609c4276c0e45a8a5b1af3e2f4c1c27/FLAGe9b4ccf38 [2021-02-16 17:21:11,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5596538/a609c4276c0e45a8a5b1af3e2f4c1c27 [2021-02-16 17:21:11,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-16 17:21:11,551 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-02-16 17:21:11,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-16 17:21:11,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-16 17:21:11,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-16 17:21:11,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:21:11" (1/1) ... [2021-02-16 17:21:11,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c757cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:11, skipping insertion in model container [2021-02-16 17:21:11,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 05:21:11" (1/1) ... [2021-02-16 17:21:11,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-16 17:21:11,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-16 17:21:11,785 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i[950,963] [2021-02-16 17:21:12,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:21:12,108 INFO L203 MainTranslator]: Completed pre-run [2021-02-16 17:21:12,128 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i[950,963] [2021-02-16 17:21:12,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 17:21:12,388 INFO L208 MainTranslator]: Completed translation [2021-02-16 17:21:12,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12 WrapperNode [2021-02-16 17:21:12,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-16 17:21:12,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-16 17:21:12,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-16 17:21:12,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-16 17:21:12,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (1/1) ... [2021-02-16 17:21:12,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (1/1) ... [2021-02-16 17:21:12,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-16 17:21:12,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-16 17:21:12,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-16 17:21:12,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-16 17:21:12,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (1/1) ... [2021-02-16 17:21:12,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (1/1) ... [2021-02-16 17:21:12,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (1/1) ... [2021-02-16 17:21:12,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (1/1) ... [2021-02-16 17:21:12,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (1/1) ... [2021-02-16 17:21:12,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (1/1) ... [2021-02-16 17:21:12,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (1/1) ... [2021-02-16 17:21:12,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-16 17:21:12,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-16 17:21:12,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-16 17:21:12,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-16 17:21:12,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (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 [2021-02-16 17:21:12,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-16 17:21:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-02-16 17:21:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-16 17:21:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-16 17:21:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-02-16 17:21:12,660 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-02-16 17:21:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-02-16 17:21:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-02-16 17:21:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-02-16 17:21:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-02-16 17:21:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-16 17:21:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-02-16 17:21:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-16 17:21:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-16 17:21:12,663 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-16 17:21:13,128 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-16 17:21:13,128 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-02-16 17:21:13,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:21:13 BoogieIcfgContainer [2021-02-16 17:21:13,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-16 17:21:13,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-16 17:21:13,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-16 17:21:13,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-16 17:21:13,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 05:21:11" (1/3) ... [2021-02-16 17:21:13,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f76a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:21:13, skipping insertion in model container [2021-02-16 17:21:13,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 05:21:12" (2/3) ... [2021-02-16 17:21:13,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f76a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:21:13, skipping insertion in model container [2021-02-16 17:21:13,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:21:13" (3/3) ... [2021-02-16 17:21:13,141 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2021-02-16 17:21:13,149 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-16 17:21:13,149 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-16 17:21:13,155 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-16 17:21:13,156 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-16 17:21:13,197 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,197 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,197 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,197 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,198 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,198 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,200 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,200 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,201 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,201 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,203 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,203 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,207 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,214 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,215 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,218 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,219 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,219 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,219 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 17:21:13,222 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-02-16 17:21:13,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-02-16 17:21:13,272 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-16 17:21:13,272 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-16 17:21:13,272 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-16 17:21:13,272 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-16 17:21:13,273 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-16 17:21:13,273 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-16 17:21:13,273 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-16 17:21:13,273 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-16 17:21:13,287 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 75 transitions, 165 flow [2021-02-16 17:21:14,080 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 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) [2021-02-16 17:21:14,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 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) [2021-02-16 17:21:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-02-16 17:21:14,180 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:14,181 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 17:21:14,181 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:14,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:14,189 INFO L82 PathProgramCache]: Analyzing trace with hash 342406277, now seen corresponding path program 1 times [2021-02-16 17:21:14,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:14,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949162770] [2021-02-16 17:21:14,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:14,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:14,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:14,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:14,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:14,736 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:14,737 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:14,760 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:14,762 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:14,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:14,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:14,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:14,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:14,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:14,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:14,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949162770] [2021-02-16 17:21:14,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:14,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:21:14,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043873684] [2021-02-16 17:21:14,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:21:14,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:14,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:21:14,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:21:14,917 INFO L87 Difference]: Start difference. First operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:15,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:15,682 INFO L93 Difference]: Finished difference Result 18550 states and 63904 transitions. [2021-02-16 17:21:15,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-16 17:21:15,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-02-16 17:21:15,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:15,756 INFO L225 Difference]: With dead ends: 18550 [2021-02-16 17:21:15,756 INFO L226 Difference]: Without dead ends: 5755 [2021-02-16 17:21:15,758 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:21:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5755 states. [2021-02-16 17:21:16,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5755 to 4675. [2021-02-16 17:21:16,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4675 states, 4674 states have (on average 3.363072314933676) internal successors, (15719), 4674 states have internal predecessors, (15719), 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) [2021-02-16 17:21:16,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4675 states to 4675 states and 15719 transitions. [2021-02-16 17:21:16,247 INFO L78 Accepts]: Start accepts. Automaton has 4675 states and 15719 transitions. Word has length 40 [2021-02-16 17:21:16,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:16,249 INFO L480 AbstractCegarLoop]: Abstraction has 4675 states and 15719 transitions. [2021-02-16 17:21:16,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 17:21:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 4675 states and 15719 transitions. [2021-02-16 17:21:16,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-16 17:21:16,264 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:16,265 INFO L505 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] [2021-02-16 17:21:16,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-16 17:21:16,265 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:16,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:16,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1895058182, now seen corresponding path program 1 times [2021-02-16 17:21:16,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:16,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452832295] [2021-02-16 17:21:16,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:16,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:16,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:16,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:16,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:16,506 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:16,507 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:16,526 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:16,527 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:16,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:16,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:16,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:16,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:16,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:16,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:16,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:16,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452832295] [2021-02-16 17:21:16,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:16,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:21:16,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472631809] [2021-02-16 17:21:16,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:21:16,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:16,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:21:16,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:21:16,619 INFO L87 Difference]: Start difference. First operand 4675 states and 15719 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-02-16 17:21:17,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:17,252 INFO L93 Difference]: Finished difference Result 7830 states and 25918 transitions. [2021-02-16 17:21:17,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-16 17:21:17,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2021-02-16 17:21:17,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:17,302 INFO L225 Difference]: With dead ends: 7830 [2021-02-16 17:21:17,302 INFO L226 Difference]: Without dead ends: 5775 [2021-02-16 17:21:17,303 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-02-16 17:21:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5775 states. [2021-02-16 17:21:17,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5775 to 4695. [2021-02-16 17:21:17,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4695 states, 4694 states have (on average 3.356625479335322) internal successors, (15756), 4694 states have internal predecessors, (15756), 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) [2021-02-16 17:21:17,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4695 states to 4695 states and 15756 transitions. [2021-02-16 17:21:17,581 INFO L78 Accepts]: Start accepts. Automaton has 4695 states and 15756 transitions. Word has length 42 [2021-02-16 17:21:17,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:17,582 INFO L480 AbstractCegarLoop]: Abstraction has 4695 states and 15756 transitions. [2021-02-16 17:21:17,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2021-02-16 17:21:17,582 INFO L276 IsEmpty]: Start isEmpty. Operand 4695 states and 15756 transitions. [2021-02-16 17:21:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-16 17:21:17,597 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:17,597 INFO L505 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] [2021-02-16 17:21:17,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-16 17:21:17,598 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:17,599 INFO L82 PathProgramCache]: Analyzing trace with hash 789252865, now seen corresponding path program 1 times [2021-02-16 17:21:17,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:17,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905557679] [2021-02-16 17:21:17,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:17,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:17,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:17,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:17,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:17,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:17,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:17,766 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:17,767 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:17,791 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:17,794 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:17,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:17,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:17,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:17,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:17,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:17,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:17,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905557679] [2021-02-16 17:21:17,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:17,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:21:17,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177773017] [2021-02-16 17:21:17,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:21:17,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:17,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:21:17,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:21:17,887 INFO L87 Difference]: Start difference. First operand 4695 states and 15756 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-02-16 17:21:18,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:18,271 INFO L93 Difference]: Finished difference Result 6545 states and 21579 transitions. [2021-02-16 17:21:18,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-16 17:21:18,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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 44 [2021-02-16 17:21:18,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:18,321 INFO L225 Difference]: With dead ends: 6545 [2021-02-16 17:21:18,321 INFO L226 Difference]: Without dead ends: 3230 [2021-02-16 17:21:18,321 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:21:18,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2021-02-16 17:21:18,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2750. [2021-02-16 17:21:18,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2749 states have (on average 3.199708985085486) internal successors, (8796), 2749 states have internal predecessors, (8796), 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) [2021-02-16 17:21:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 8796 transitions. [2021-02-16 17:21:18,433 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 8796 transitions. Word has length 44 [2021-02-16 17:21:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:18,434 INFO L480 AbstractCegarLoop]: Abstraction has 2750 states and 8796 transitions. [2021-02-16 17:21:18,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-02-16 17:21:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 8796 transitions. [2021-02-16 17:21:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-16 17:21:18,443 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:18,443 INFO L505 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] [2021-02-16 17:21:18,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-16 17:21:18,443 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:18,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:18,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1721846773, now seen corresponding path program 1 times [2021-02-16 17:21:18,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:18,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085731484] [2021-02-16 17:21:18,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:18,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:18,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:18,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:18,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:18,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:18,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:18,606 WARN L141 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-02-16 17:21:18,607 WARN L147 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size 13 [2021-02-16 17:21:18,629 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 17:21:18,630 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 17:21:18,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:18,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:18,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:18,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-16 17:21:18,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:18,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:18,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085731484] [2021-02-16 17:21:18,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:18,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:21:18,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105869955] [2021-02-16 17:21:18,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:21:18,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:18,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:21:18,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:21:18,723 INFO L87 Difference]: Start difference. First operand 2750 states and 8796 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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) [2021-02-16 17:21:19,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:19,044 INFO L93 Difference]: Finished difference Result 3422 states and 10756 transitions. [2021-02-16 17:21:19,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-16 17:21:19,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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 45 [2021-02-16 17:21:19,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:19,053 INFO L225 Difference]: With dead ends: 3422 [2021-02-16 17:21:19,053 INFO L226 Difference]: Without dead ends: 1252 [2021-02-16 17:21:19,054 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-16 17:21:19,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2021-02-16 17:21:19,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1252. [2021-02-16 17:21:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1251 states have (on average 2.9752198241406873) internal successors, (3722), 1251 states have internal predecessors, (3722), 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) [2021-02-16 17:21:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 3722 transitions. [2021-02-16 17:21:19,099 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 3722 transitions. Word has length 45 [2021-02-16 17:21:19,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:19,099 INFO L480 AbstractCegarLoop]: Abstraction has 1252 states and 3722 transitions. [2021-02-16 17:21:19,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 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) [2021-02-16 17:21:19,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 3722 transitions. [2021-02-16 17:21:19,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-16 17:21:19,103 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:19,104 INFO L505 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] [2021-02-16 17:21:19,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-16 17:21:19,104 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:19,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:19,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1962457580, now seen corresponding path program 1 times [2021-02-16 17:21:19,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:19,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447670754] [2021-02-16 17:21:19,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:19,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:19,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:19,211 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:21:19,212 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:21:19,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:21:19,259 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:21:19,260 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:21:19,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:19,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447670754] [2021-02-16 17:21:19,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:19,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-16 17:21:19,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803388023] [2021-02-16 17:21:19,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-16 17:21:19,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:19,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-16 17:21:19,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-16 17:21:19,281 INFO L87 Difference]: Start difference. First operand 1252 states and 3722 transitions. 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) [2021-02-16 17:21:19,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:19,397 INFO L93 Difference]: Finished difference Result 1453 states and 4273 transitions. [2021-02-16 17:21:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-16 17:21:19,397 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 [2021-02-16 17:21:19,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:19,402 INFO L225 Difference]: With dead ends: 1453 [2021-02-16 17:21:19,402 INFO L226 Difference]: Without dead ends: 1117 [2021-02-16 17:21:19,402 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-02-16 17:21:19,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2021-02-16 17:21:19,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1117. [2021-02-16 17:21:19,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1116 states have (on average 2.931899641577061) internal successors, (3272), 1116 states have internal predecessors, (3272), 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) [2021-02-16 17:21:19,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 3272 transitions. [2021-02-16 17:21:19,439 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 3272 transitions. Word has length 48 [2021-02-16 17:21:19,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:19,440 INFO L480 AbstractCegarLoop]: Abstraction has 1117 states and 3272 transitions. [2021-02-16 17:21:19,440 INFO L481 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) [2021-02-16 17:21:19,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 3272 transitions. [2021-02-16 17:21:19,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-02-16 17:21:19,443 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:19,444 INFO L505 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] [2021-02-16 17:21:19,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-16 17:21:19,444 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:19,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:19,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1262805501, now seen corresponding path program 1 times [2021-02-16 17:21:19,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:19,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495152483] [2021-02-16 17:21:19,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:19,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:19,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:19,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:19,504 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:21:19,505 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:21:19,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:21:19,535 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:21:19,536 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:21:19,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:19,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:19,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495152483] [2021-02-16 17:21:19,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:19,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-16 17:21:19,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852778647] [2021-02-16 17:21:19,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-16 17:21:19,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:19,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-16 17:21:19,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-16 17:21:19,556 INFO L87 Difference]: Start difference. First operand 1117 states and 3272 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2021-02-16 17:21:19,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:19,704 INFO L93 Difference]: Finished difference Result 1009 states and 2852 transitions. [2021-02-16 17:21:19,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-16 17:21:19,705 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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 [2021-02-16 17:21:19,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:19,708 INFO L225 Difference]: With dead ends: 1009 [2021-02-16 17:21:19,708 INFO L226 Difference]: Without dead ends: 757 [2021-02-16 17:21:19,709 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-02-16 17:21:19,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2021-02-16 17:21:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 757. [2021-02-16 17:21:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 756 states have (on average 2.7605820105820107) internal successors, (2087), 756 states have internal predecessors, (2087), 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) [2021-02-16 17:21:19,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 2087 transitions. [2021-02-16 17:21:19,735 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 2087 transitions. Word has length 49 [2021-02-16 17:21:19,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:19,736 INFO L480 AbstractCegarLoop]: Abstraction has 757 states and 2087 transitions. [2021-02-16 17:21:19,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2021-02-16 17:21:19,736 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 2087 transitions. [2021-02-16 17:21:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-02-16 17:21:19,739 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 17:21:19,739 INFO L505 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] [2021-02-16 17:21:19,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-16 17:21:19,739 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 17:21:19,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 17:21:19,740 INFO L82 PathProgramCache]: Analyzing trace with hash -6685818, now seen corresponding path program 1 times [2021-02-16 17:21:19,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 17:21:19,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302362984] [2021-02-16 17:21:19,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 17:21:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 17:21:19,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:19,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:19,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:19,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 17:21:19,822 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-16 17:21:19,823 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-16 17:21:19,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 17:21:19,854 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-16 17:21:19,854 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-16 17:21:19,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 17:21:19,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 17:21:19,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 17:21:19,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302362984] [2021-02-16 17:21:19,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 17:21:19,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-16 17:21:19,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050915518] [2021-02-16 17:21:19,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-16 17:21:19,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 17:21:19,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-16 17:21:19,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-16 17:21:19,872 INFO L87 Difference]: Start difference. First operand 757 states and 2087 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2021-02-16 17:21:19,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 17:21:19,965 INFO L93 Difference]: Finished difference Result 460 states and 1196 transitions. [2021-02-16 17:21:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-16 17:21:19,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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 [2021-02-16 17:21:19,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 17:21:19,966 INFO L225 Difference]: With dead ends: 460 [2021-02-16 17:21:19,966 INFO L226 Difference]: Without dead ends: 0 [2021-02-16 17:21:19,966 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-16 17:21:19,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-16 17:21:19,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-16 17:21:19,967 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) [2021-02-16 17:21:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-16 17:21:19,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2021-02-16 17:21:19,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 17:21:19,968 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-16 17:21:19,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2021-02-16 17:21:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-16 17:21:19,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-16 17:21:19,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-16 17:21:19,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 05:21:19 BasicIcfg [2021-02-16 17:21:19,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-16 17:21:19,975 INFO L168 Benchmark]: Toolchain (without parser) took 8433.40 ms. Allocated memory was 302.0 MB in the beginning and 690.0 MB in the end (delta: 388.0 MB). Free memory was 276.9 MB in the beginning and 550.9 MB in the end (delta: -274.0 MB). Peak memory consumption was 116.6 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:19,976 INFO L168 Benchmark]: CDTParser took 1.36 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:21:19,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 835.79 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 283.5 MB in the end (delta: -7.7 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:19,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.38 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 281.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 17:21:19,978 INFO L168 Benchmark]: Boogie Preprocessor took 60.75 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 280.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:19,978 INFO L168 Benchmark]: RCFGBuilder took 587.57 ms. Allocated memory is still 302.0 MB. Free memory was 280.3 MB in the beginning and 257.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:19,979 INFO L168 Benchmark]: TraceAbstraction took 6841.20 ms. Allocated memory was 302.0 MB in the beginning and 690.0 MB in the end (delta: 388.0 MB). Free memory was 256.2 MB in the beginning and 550.9 MB in the end (delta: -294.7 MB). Peak memory consumption was 96.4 MB. Max. memory is 16.0 GB. [2021-02-16 17:21:19,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36 ms. Allocated memory is still 302.0 MB. Free memory was 272.1 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 835.79 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 283.5 MB in the end (delta: -7.7 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 91.38 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 281.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 60.75 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 280.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 587.57 ms. Allocated memory is still 302.0 MB. Free memory was 280.3 MB in the beginning and 257.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6841.20 ms. Allocated memory was 302.0 MB in the beginning and 690.0 MB in the end (delta: 388.0 MB). Free memory was 256.2 MB in the beginning and 550.9 MB in the end (delta: -294.7 MB). Peak memory consumption was 96.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 634 SDtfs, 1366 SDslu, 2228 SDs, 0 SdLazy, 270 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8819occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 2640 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 318 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 54567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...