/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-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:18:53,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:18:53,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:18:53,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:18:53,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:18:53,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:18:53,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:18:53,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:18:53,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:18:53,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:18:53,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:18:53,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:18:53,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:18:53,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:18:53,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:18:53,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:18:53,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:18:53,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:18:53,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:18:53,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:18:53,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:18:53,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:18:53,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:18:53,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:18:53,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:18:53,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:18:53,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:18:53,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:18:53,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:18:53,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:18:53,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:18:53,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:18:53,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:18:53,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:18:53,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:18:53,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:18:53,795 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-New_States.epf [2020-11-12 12:18:53,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:18:53,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:18:53,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:18:53,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:18:53,824 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:18:53,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:18:53,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:18:53,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:18:53,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:18:53,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:18:53,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:18:53,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:18:53,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:18:53,826 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:18:53,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:18:53,827 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:18:53,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:18:53,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:18:53,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:18:53,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:18:53,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:18:53,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:18:53,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:18:53,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:18:53,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:18:53,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:18:53,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:18:53,830 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:18:53,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:18:53,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:18:53,830 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:18:54,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:18:54,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:18:54,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:18:54,261 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:18:54,261 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:18:54,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2020-11-12 12:18:54,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5c4fbac/0c723bbd5f90458ab3e62a7f70d915d2/FLAG71b91242a [2020-11-12 12:18:55,004 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:18:55,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2020-11-12 12:18:55,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5c4fbac/0c723bbd5f90458ab3e62a7f70d915d2/FLAG71b91242a [2020-11-12 12:18:55,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a5c4fbac/0c723bbd5f90458ab3e62a7f70d915d2 [2020-11-12 12:18:55,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:18:55,313 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:18:55,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:18:55,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:18:55,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:18:55,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:18:55" (1/1) ... [2020-11-12 12:18:55,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e7f876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:55, skipping insertion in model container [2020-11-12 12:18:55,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:18:55" (1/1) ... [2020-11-12 12:18:55,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:18:55,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:18:55,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:18:55,899 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:18:55,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:18:56,072 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:18:56,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56 WrapperNode [2020-11-12 12:18:56,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:18:56,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:18:56,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:18:56,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:18:56,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (1/1) ... [2020-11-12 12:18:56,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (1/1) ... [2020-11-12 12:18:56,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:18:56,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:18:56,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:18:56,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:18:56,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (1/1) ... [2020-11-12 12:18:56,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (1/1) ... [2020-11-12 12:18:56,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (1/1) ... [2020-11-12 12:18:56,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (1/1) ... [2020-11-12 12:18:56,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (1/1) ... [2020-11-12 12:18:56,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (1/1) ... [2020-11-12 12:18:56,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (1/1) ... [2020-11-12 12:18:56,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:18:56,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:18:56,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:18:56,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:18:56,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (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 [2020-11-12 12:18:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:18:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:18:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:18:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:18:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:18:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:18:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:18:56,385 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:18:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:18:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:18:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:18:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:18:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:18:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:18:56,388 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:18:57,079 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:18:57,080 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:18:57,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:18:57 BoogieIcfgContainer [2020-11-12 12:18:57,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:18:57,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:18:57,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:18:57,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:18:57,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:18:55" (1/3) ... [2020-11-12 12:18:57,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7243804b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:18:57, skipping insertion in model container [2020-11-12 12:18:57,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:18:56" (2/3) ... [2020-11-12 12:18:57,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7243804b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:18:57, skipping insertion in model container [2020-11-12 12:18:57,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:18:57" (3/3) ... [2020-11-12 12:18:57,095 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc.i [2020-11-12 12:18:57,114 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:18:57,114 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:18:57,118 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:18:57,119 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:18:57,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,173 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,174 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,174 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,174 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,174 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,174 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,177 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,177 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,178 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,178 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,188 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,189 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,189 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,196 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,196 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,196 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,196 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,202 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,203 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,206 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,207 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,207 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,207 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:18:57,210 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:18:57,223 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:18:57,247 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:18:57,247 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:18:57,247 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:18:57,248 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:18:57,248 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:18:57,248 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:18:57,248 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:18:57,248 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:18:57,261 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 12:18:58,114 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-11-12 12:18:59,151 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 1034ms [2020-11-12 12:18:59,203 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-11-12 12:18:59,375 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 34787 states, 31828 states have (on average 1.2108520799296216) internal successors, (38539), 34786 states have internal predecessors, (38539), 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) [2020-11-12 12:18:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 34787 states, 31828 states have (on average 1.2108520799296216) internal successors, (38539), 34786 states have internal predecessors, (38539), 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) [2020-11-12 12:18:59,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:18:59,463 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:18:59,464 INFO L494 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] [2020-11-12 12:18:59,464 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:18:59,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:18:59,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-11-12 12:18:59,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:18:59,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560159267] [2020-11-12 12:18:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:18:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:19:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:19:00,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560159267] [2020-11-12 12:19:00,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:19:00,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:19:00,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896542868] [2020-11-12 12:19:00,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:19:00,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:19:00,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:19:00,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:19:00,231 INFO L87 Difference]: Start difference. First operand has 34787 states, 31828 states have (on average 1.2108520799296216) internal successors, (38539), 34786 states have internal predecessors, (38539), 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 7.0) internal successors, (42), 6 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) [2020-11-12 12:19:00,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:19:00,710 INFO L93 Difference]: Finished difference Result 14634 states and 17328 transitions. [2020-11-12 12:19:00,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:19:00,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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 [2020-11-12 12:19:00,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:19:00,754 INFO L225 Difference]: With dead ends: 14634 [2020-11-12 12:19:00,754 INFO L226 Difference]: Without dead ends: 4667 [2020-11-12 12:19:00,756 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:19:00,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4667 states. [2020-11-12 12:19:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4667 to 4667. [2020-11-12 12:19:00,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4667 states, 4422 states have (on average 1.353459972862958) internal successors, (5985), 4666 states have internal predecessors, (5985), 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) [2020-11-12 12:19:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4667 states to 4667 states and 5985 transitions. [2020-11-12 12:19:01,018 INFO L78 Accepts]: Start accepts. Automaton has 4667 states and 5985 transitions. Word has length 42 [2020-11-12 12:19:01,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:19:01,019 INFO L481 AbstractCegarLoop]: Abstraction has 4667 states and 5985 transitions. [2020-11-12 12:19:01,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2020-11-12 12:19:01,019 INFO L276 IsEmpty]: Start isEmpty. Operand 4667 states and 5985 transitions. [2020-11-12 12:19:01,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 12:19:01,032 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:19:01,032 INFO L494 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] [2020-11-12 12:19:01,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:19:01,033 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:19:01,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:19:01,034 INFO L82 PathProgramCache]: Analyzing trace with hash -2038497689, now seen corresponding path program 1 times [2020-11-12 12:19:01,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:19:01,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845651936] [2020-11-12 12:19:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:19:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:19:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:19:01,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845651936] [2020-11-12 12:19:01,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:19:01,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:19:01,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059761587] [2020-11-12 12:19:01,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:19:01,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:19:01,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:19:01,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:19:01,303 INFO L87 Difference]: Start difference. First operand 4667 states and 5985 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2020-11-12 12:19:01,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:19:01,637 INFO L93 Difference]: Finished difference Result 6100 states and 7902 transitions. [2020-11-12 12:19:01,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:19:01,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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 [2020-11-12 12:19:01,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:19:01,650 INFO L225 Difference]: With dead ends: 6100 [2020-11-12 12:19:01,651 INFO L226 Difference]: Without dead ends: 2536 [2020-11-12 12:19:01,652 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:19:01,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2020-11-12 12:19:01,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2536. [2020-11-12 12:19:01,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2396 states have (on average 1.3050918196994992) internal successors, (3127), 2535 states have internal predecessors, (3127), 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) [2020-11-12 12:19:01,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 3127 transitions. [2020-11-12 12:19:01,722 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 3127 transitions. Word has length 44 [2020-11-12 12:19:01,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:19:01,722 INFO L481 AbstractCegarLoop]: Abstraction has 2536 states and 3127 transitions. [2020-11-12 12:19:01,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2020-11-12 12:19:01,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 3127 transitions. [2020-11-12 12:19:01,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:19:01,728 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:19:01,728 INFO L494 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] [2020-11-12 12:19:01,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:19:01,729 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:19:01,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:19:01,729 INFO L82 PathProgramCache]: Analyzing trace with hash 243817118, now seen corresponding path program 1 times [2020-11-12 12:19:01,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:19:01,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113084351] [2020-11-12 12:19:01,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:19:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:19:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:19:01,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113084351] [2020-11-12 12:19:01,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:19:01,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:19:01,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105321664] [2020-11-12 12:19:01,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:19:01,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:19:01,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:19:01,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:19:01,958 INFO L87 Difference]: Start difference. First operand 2536 states and 3127 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2020-11-12 12:19:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:19:02,221 INFO L93 Difference]: Finished difference Result 2700 states and 3327 transitions. [2020-11-12 12:19:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:19:02,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2020-11-12 12:19:02,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:19:02,231 INFO L225 Difference]: With dead ends: 2700 [2020-11-12 12:19:02,232 INFO L226 Difference]: Without dead ends: 1873 [2020-11-12 12:19:02,232 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:19:02,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2020-11-12 12:19:02,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1873. [2020-11-12 12:19:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1873 states, 1773 states have (on average 1.3209249858996053) internal successors, (2342), 1872 states have internal predecessors, (2342), 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) [2020-11-12 12:19:02,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 2342 transitions. [2020-11-12 12:19:02,280 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 2342 transitions. Word has length 47 [2020-11-12 12:19:02,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:19:02,280 INFO L481 AbstractCegarLoop]: Abstraction has 1873 states and 2342 transitions. [2020-11-12 12:19:02,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2020-11-12 12:19:02,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 2342 transitions. [2020-11-12 12:19:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 12:19:02,285 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:19:02,285 INFO L494 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] [2020-11-12 12:19:02,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:19:02,286 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:19:02,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:19:02,286 INFO L82 PathProgramCache]: Analyzing trace with hash -491273153, now seen corresponding path program 1 times [2020-11-12 12:19:02,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:19:02,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439523376] [2020-11-12 12:19:02,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:19:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:19:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:19:02,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439523376] [2020-11-12 12:19:02,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:19:02,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:19:02,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980737123] [2020-11-12 12:19:02,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:19:02,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:19:02,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:19:02,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:19:02,504 INFO L87 Difference]: Start difference. First operand 1873 states and 2342 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) [2020-11-12 12:19:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:19:02,678 INFO L93 Difference]: Finished difference Result 3276 states and 4199 transitions. [2020-11-12 12:19:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:19:02,679 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 [2020-11-12 12:19:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:19:02,688 INFO L225 Difference]: With dead ends: 3276 [2020-11-12 12:19:02,688 INFO L226 Difference]: Without dead ends: 1859 [2020-11-12 12:19:02,689 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:19:02,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2020-11-12 12:19:02,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1859. [2020-11-12 12:19:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1759 states have (on average 1.3172256964184195) internal successors, (2317), 1858 states have internal predecessors, (2317), 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) [2020-11-12 12:19:02,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2317 transitions. [2020-11-12 12:19:02,734 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2317 transitions. Word has length 49 [2020-11-12 12:19:02,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:19:02,734 INFO L481 AbstractCegarLoop]: Abstraction has 1859 states and 2317 transitions. [2020-11-12 12:19:02,734 INFO L482 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) [2020-11-12 12:19:02,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2317 transitions. [2020-11-12 12:19:02,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 12:19:02,738 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:19:02,738 INFO L494 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] [2020-11-12 12:19:02,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:19:02,739 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:19:02,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:19:02,740 INFO L82 PathProgramCache]: Analyzing trace with hash -110706243, now seen corresponding path program 2 times [2020-11-12 12:19:02,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:19:02,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514702868] [2020-11-12 12:19:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:19:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:19:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:19:02,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514702868] [2020-11-12 12:19:02,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:19:02,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:19:02,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76748275] [2020-11-12 12:19:02,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:19:02,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:19:02,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:19:02,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:19:02,884 INFO L87 Difference]: Start difference. First operand 1859 states and 2317 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) [2020-11-12 12:19:03,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:19:03,194 INFO L93 Difference]: Finished difference Result 2835 states and 3548 transitions. [2020-11-12 12:19:03,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:19:03,195 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 [2020-11-12 12:19:03,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:19:03,203 INFO L225 Difference]: With dead ends: 2835 [2020-11-12 12:19:03,204 INFO L226 Difference]: Without dead ends: 1428 [2020-11-12 12:19:03,204 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:19:03,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-11-12 12:19:03,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-11-12 12:19:03,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1348 states have (on average 1.2507418397626113) internal successors, (1686), 1427 states have internal predecessors, (1686), 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) [2020-11-12 12:19:03,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1686 transitions. [2020-11-12 12:19:03,245 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1686 transitions. Word has length 49 [2020-11-12 12:19:03,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:19:03,245 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1686 transitions. [2020-11-12 12:19:03,246 INFO L482 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) [2020-11-12 12:19:03,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1686 transitions. [2020-11-12 12:19:03,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 12:19:03,249 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:19:03,250 INFO L494 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] [2020-11-12 12:19:03,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:19:03,250 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:19:03,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:19:03,251 INFO L82 PathProgramCache]: Analyzing trace with hash -811265535, now seen corresponding path program 1 times [2020-11-12 12:19:03,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:19:03,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933576445] [2020-11-12 12:19:03,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:19:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:19:03,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:19:03,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933576445] [2020-11-12 12:19:03,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:19:03,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:19:03,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646022875] [2020-11-12 12:19:03,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:19:03,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:19:03,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:19:03,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:19:03,386 INFO L87 Difference]: Start difference. First operand 1428 states and 1686 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:19:03,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:19:03,532 INFO L93 Difference]: Finished difference Result 1706 states and 1936 transitions. [2020-11-12 12:19:03,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:19:03,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-11-12 12:19:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:19:03,541 INFO L225 Difference]: With dead ends: 1706 [2020-11-12 12:19:03,541 INFO L226 Difference]: Without dead ends: 1384 [2020-11-12 12:19:03,542 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:19:03,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-11-12 12:19:03,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2020-11-12 12:19:03,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1306 states have (on average 1.2358346094946402) internal successors, (1614), 1383 states have internal predecessors, (1614), 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) [2020-11-12 12:19:03,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1614 transitions. [2020-11-12 12:19:03,587 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1614 transitions. Word has length 50 [2020-11-12 12:19:03,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:19:03,588 INFO L481 AbstractCegarLoop]: Abstraction has 1384 states and 1614 transitions. [2020-11-12 12:19:03,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:19:03,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1614 transitions. [2020-11-12 12:19:03,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:19:03,594 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:19:03,594 INFO L494 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] [2020-11-12 12:19:03,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:19:03,595 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:19:03,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:19:03,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1203143900, now seen corresponding path program 1 times [2020-11-12 12:19:03,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:19:03,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24913318] [2020-11-12 12:19:03,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:19:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:19:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:19:03,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24913318] [2020-11-12 12:19:03,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:19:03,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:19:03,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674931650] [2020-11-12 12:19:03,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:19:03,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:19:03,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:19:03,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:19:03,791 INFO L87 Difference]: Start difference. First operand 1384 states and 1614 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) [2020-11-12 12:19:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:19:03,957 INFO L93 Difference]: Finished difference Result 1484 states and 1671 transitions. [2020-11-12 12:19:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:19:03,958 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 [2020-11-12 12:19:03,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:19:03,964 INFO L225 Difference]: With dead ends: 1484 [2020-11-12 12:19:03,964 INFO L226 Difference]: Without dead ends: 1094 [2020-11-12 12:19:03,965 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:19:03,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2020-11-12 12:19:03,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2020-11-12 12:19:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1031 states have (on average 1.1736178467507274) internal successors, (1210), 1093 states have internal predecessors, (1210), 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) [2020-11-12 12:19:03,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1210 transitions. [2020-11-12 12:19:03,994 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1210 transitions. Word has length 51 [2020-11-12 12:19:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:19:03,995 INFO L481 AbstractCegarLoop]: Abstraction has 1094 states and 1210 transitions. [2020-11-12 12:19:03,995 INFO L482 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) [2020-11-12 12:19:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1210 transitions. [2020-11-12 12:19:03,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 12:19:03,998 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:19:03,998 INFO L494 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] [2020-11-12 12:19:03,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:19:03,999 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:19:03,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:19:04,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1482004455, now seen corresponding path program 1 times [2020-11-12 12:19:04,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:19:04,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413480699] [2020-11-12 12:19:04,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:19:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:19:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:19:04,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413480699] [2020-11-12 12:19:04,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:19:04,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:19:04,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453425296] [2020-11-12 12:19:04,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:19:04,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:19:04,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:19:04,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:19:04,143 INFO L87 Difference]: Start difference. First operand 1094 states and 1210 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:19:04,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:19:04,353 INFO L93 Difference]: Finished difference Result 843 states and 896 transitions. [2020-11-12 12:19:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:19:04,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-11-12 12:19:04,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:19:04,357 INFO L225 Difference]: With dead ends: 843 [2020-11-12 12:19:04,362 INFO L226 Difference]: Without dead ends: 471 [2020-11-12 12:19:04,362 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 12:19:04,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-11-12 12:19:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2020-11-12 12:19:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 444 states have (on average 1.0585585585585586) internal successors, (470), 470 states have internal predecessors, (470), 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) [2020-11-12 12:19:04,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 470 transitions. [2020-11-12 12:19:04,379 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 470 transitions. Word has length 52 [2020-11-12 12:19:04,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:19:04,379 INFO L481 AbstractCegarLoop]: Abstraction has 471 states and 470 transitions. [2020-11-12 12:19:04,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:19:04,380 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 470 transitions. [2020-11-12 12:19:04,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 12:19:04,381 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:19:04,381 INFO L494 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] [2020-11-12 12:19:04,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 12:19:04,382 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:19:04,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:19:04,382 INFO L82 PathProgramCache]: Analyzing trace with hash 357086726, now seen corresponding path program 1 times [2020-11-12 12:19:04,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:19:04,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340136077] [2020-11-12 12:19:04,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:19:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:19:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:19:04,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340136077] [2020-11-12 12:19:04,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:19:04,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:19:04,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387801490] [2020-11-12 12:19:04,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:19:04,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:19:04,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:19:04,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:19:04,520 INFO L87 Difference]: Start difference. First operand 471 states and 470 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:19:04,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:19:04,635 INFO L93 Difference]: Finished difference Result 363 states and 362 transitions. [2020-11-12 12:19:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:19:04,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-12 12:19:04,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:19:04,636 INFO L225 Difference]: With dead ends: 363 [2020-11-12 12:19:04,636 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:19:04,637 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:19:04,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:19:04,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:19:04,637 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) [2020-11-12 12:19:04,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:19:04,637 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-12 12:19:04,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:19:04,638 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:19:04,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:19:04,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:19:04,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:19:04,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 12:19:04,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:19:04 BasicIcfg [2020-11-12 12:19:04,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:19:04,651 INFO L168 Benchmark]: Toolchain (without parser) took 9341.61 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 817.9 MB). Free memory was 276.3 MB in the beginning and 977.0 MB in the end (delta: -700.7 MB). Peak memory consumption was 118.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:19:04,652 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:19:04,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.68 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 244.8 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:19:04,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.60 ms. Allocated memory is still 302.0 MB. Free memory was 244.8 MB in the beginning and 243.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:19:04,655 INFO L168 Benchmark]: Boogie Preprocessor took 53.93 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 241.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:19:04,661 INFO L168 Benchmark]: RCFGBuilder took 856.38 ms. Allocated memory is still 302.0 MB. Free memory was 241.4 MB in the beginning and 263.6 MB in the end (delta: -22.2 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. [2020-11-12 12:19:04,663 INFO L168 Benchmark]: TraceAbstraction took 7560.59 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 817.9 MB). Free memory was 262.6 MB in the beginning and 977.0 MB in the end (delta: -714.5 MB). Peak memory consumption was 105.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:19:04,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 758.68 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 244.8 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 90.60 ms. Allocated memory is still 302.0 MB. Free memory was 244.8 MB in the beginning and 243.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 53.93 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 241.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 856.38 ms. Allocated memory is still 302.0 MB. Free memory was 241.4 MB in the beginning and 263.6 MB in the end (delta: -22.2 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7560.59 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 817.9 MB). Free memory was 262.6 MB in the beginning and 977.0 MB in the end (delta: -714.5 MB). Peak memory consumption was 105.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 575 SDtfs, 755 SDslu, 2172 SDs, 0 SdLazy, 271 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34787occurred 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: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 55353 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...